Brake Rotor in German 1990 Audi V8 Quattro Oil Filter Location

Motor vehicle

Audi S4
2016-present Audi S4 (B9) sedan (forepart view, United States)
Overview
Manufacturer	Audi AG
Production	1991–present
Associates	Frg: Ingolstadt
Body and chassis
Course	Compact executive car (D)
Layout	F4 layout
Related	Audi A4 Audi RS iv

The Audi S4 is the loftier operation variant of Audi's compact executive auto A4. The original Audi S4, built from 1991 until 1994, was a performance-oriented version of Audi'due south 100 saloon/sedan. All subsequent S4s since 1997 have been based on the Audi A4; and equally the A4 has evolved from one generation to the adjacent, and then has the S4.

A more powerful internal combustion engine, larger upgraded brakes, firmer suspension, larger wheels, and distinctive sheetmetal, styling clues and badging have always been amidst the many upgrades the S4 receives over its mainstream 100 and A4 siblings. In markets where the even college-performance Audi RS iv is not offered, the S4 is the top-of-the-line trim of the A4 family.^{[1] [ii]}

Similar its regular A4 analogue, all S4 variants accept had longitudinally oriented, front end-mounted engines. A unmarried turbocharged 2.2-litre inline five-cylinder powered the original C4 version, and a 2.seven-litre twin turbocharged V6 engine was found in the B5 generation. The B6 and B7 versions shared a common 4.two-litre V8 engine, the first time that a V8 engine was placed in a compact executive automobile, placing information technology in direct competition with the BMW M3 and Mercedes-Benz C55 AMG which at the time had a 3.2 L inline 6. The B8 generation uses a supercharged 3.0-litre V6 TFSI engine and competes with the both BMW 335i and BMW 335i/340i xDrive, and Mercedes-Benz C350.^[1] The recently introduced B9 generation is powered past a turbocharged three.0-litre V6 TFSI engine, as opposed to a supercharger like in the previous iteration. This electric current generation competes with the BMW M340i xDrive and Mercedes-Benz C450 AMG/Mercedes-AMG C43 4MATIC.^{[3] [4]}

All versions of the S4 have their transmission mounted immediately at the rear of the engine in a longitudinal orientation, in the form of a transaxle, and similar all Audi "Due south" cars, are merely bachelor equally standard with Audi'southward quattro all-bicycle drive (AWD) organisation, using a Torsen-based centre differential system.^[five]

All versions of the S4 have been manufactured at Audi's institute in Ingolstadt, Germany; they are, or have been available equally a four-door five-seat saloon and a five-door five-seat Avant (Audi's name for an manor car/station wagon) body styles since the model's inception in 1991. A ii-door four-seat Cabriolet (convertible) S4 variant was introduced as office of the B6 and B7 generation A4 lineups. The B8 Cabriolet has now been built off the A5 coupe torso mode and the "South" variant is marketed under the Audi S5 nameplate.

C4 (Typ 4A, 1991–1994) [edit]

Motor vehicle

First generation (C4/4A)
Overview
Also called	"Ur-S4"
Production	August 1991–July 1994[5]
Trunk and chassis
Body way	4-door saloon/sedan 5-door estate/railroad vehicle (Avant)
Platform	Volkswagen Group C4
Related	Audi C4 100 Audi C4 A6 Audi C4 S6
Powertrain
Engine	2.two L I5 20V DOHC Turbo (08/91-07/94) [5] 4.2 50 V8 32V DOHC (10/92-07/94) [v]
Transmission	5-speed manual 6-speed manual 4-speed automatic[5]
Dimensions
Wheelbase	2,692 mm (106.0 in)
Length	4,790–4,982 mm (188.6–196.1 in)
Width	1,803 mm (71.0 in)
Superlative	1,443 mm (56.8 in)
Kerb weight	saloon: i,730 kg (3,814 lb) estate: 1,780 kg (3,924 lb)
Chronology
Successor	Audi C4 S6, Audi B5 S4

Manufacturing plant production of the original Audi S4 ( Typ 4A), usually known every bit Audi 100 S4, began in Baronial 1991 to serve as the performance version of the newly updated C4 platform 100 four-door, five-seat saloon. It was designed to supersede the outgoing C3 based Audi 200 quattro turbo, which had been Audi's first true sports-saloon and had been discontinued at the terminate of 1990.^{[6] [vii]} Being the first S4 model from Audi, it is normally referred to as the Ur-S4, derived from the German: Ursprünglich augmentive discussion (meaning: original).

Audi mildly updated the C4-based model line in 1994 and dropped the 100 nomenclature; all variants of the onetime Audi 100 line were now re-badged as the Audi A6. In line with the switch in model proper name, Audi temporarily discontinued the employ of the S4 proper noun and began selling an updated but fundamentally identical version of the car, based on the "new" A6 and badged as S6. Despite the change in name, differences between the outgoing S4 and incoming S6 were primarily cosmetic.

A more than powerful, more expensive and more than exclusive variant known first equally the S4 Plus and afterwards as the S6 Plus was bachelor from October 1992 through to July 1994.^[v] Built in very small numbers, the "Plus" models featured numerous performance enhancing upgrades; including the utilize of Audi's iv.ii-litre V8 engine in place of the so current inline-five engine.

An all-new C5-based Audi A6 debuted for 1997, after which the S4 and S6 became distinctly separate models based on very unlike platforms.

The C4 variant S4 ended manufacturing plant production later less than three years in July 1994.^[v]

One of its virtually renowned owners was Ayrton Senna who owned a silver Avant,^[viii] non least because he was the Audi distributor for Brazil.

C4 powertrain [edit]

In standard form, the powertrain detail of the C4-based S4 was bachelor with simply 1 engine, a single turbocharged and intercooled version of Audi's 2.2-litre 20-valve inline five-cylinder engine This displaced 2,226 cubic centimetres (135.viii cu in) and was equipped with an advanced Bosch Motronic electronic engine command unit of measurement (ECU).^[5] This engine (parts lawmaking prefix: 034, identification lawmaking: AAN), developed a motive power output of 169 kilowatts (230 PS; 227 bhp) at 5,900 revolutions per minute (rpm) and 350 newton-metres (258 lbf⋅ft) of torque 1,950 rpm.^[5] This powerplant made information technology rather powerful past contemporary standards, and the vehicle with five-speed transmission transmission was able to accelerate from standstill to 100 kilometres per 60 minutes (62.1 mph) in 6.two seconds.

Both 5- and half dozen-speed manual transmissions (parts lawmaking prefix: 01E, identification codes: 5-speed: CBD, CET, vi-speed: CBL, CMG) were offered to European customers, but a v-speed manual was the but transmission available in Northward America; a four-speed automatic transmission (parts lawmaking prefix: 01F, identification code: CBF) was available equally an selection worldwide.^[5] Forepart and rear axle final drive ratio is either iv.111 or 3.889 (dependent on transmission type), and the rear axle (parts code prefix: 017, identification codes: AAT, AET) uses a driver-selectable electro-pneumatic-mechanical switchable diff lock.^[5]

Audi'south quattro iv-wheel-drive system was standard on the C4 S4/S6; a commencement-generation Torsen-based organisation which used the "T-1" automatically biasing centre differential (ATB) was used on vehicles equipped with manual transmissions, while a transfer box based organization was used on vehicles equipped with an automatic transmission.^[5]

S4/S6 "Plus" models equipped with a 4.2-litre 206 kilowatts (280 PS; 276 bhp) all-aluminium alloy V8 engine (parts code prefix: 077, identification code: ABH) became bachelor to European customers as an pick from Oct 1992, simply with the half dozen-speed manual gearbox, in either saloon or Avant body styles.^[5]

C4 steering, brakes, wheels & tires [edit]

All C4 S4s' came equipped as standard with a conventional fixed-assistance rack and pinion power assisted steering (PAS) system. An electronically controlled 'servotronic' system, which varied the level of assistance in accordance with the route speed, was available as an option.^[5]

There were two unlike types of loftier performance restriction systems on offer for the C4 S4.^[5] All S4s' initially had 310 mm (12.20 in) diameter by 25 mm (0.984 in) thick, radially ventilated disc brakes upward front end, each with an ATE single-piston sliding caliper inside a 'UFO' styled bell-shaped disc. With the introduction of the V8 engine, a new front end brake setup became standard; again the discs used radial ventilation, but these front discs were at present sized at 314 mm (12.36 in) by 30 mm (1.181 in) - with a conventionally mounted Lucas-Girling caliper in an external position over the disc. US models had smaller 276 mm (x.87 in) discs. The rear brakes, 269 mm (10.59 in) past 20 mm (0.787 in) and too radially ventilated - remained the same throughout C4 production; they used a Lucas-Girling single-piston sliding caliper with an integrated cablevision-actuated handbrake mechanism. A Bosch three-aqueduct performance (four-channel sensing) Anti-lock Braking System (ABS) with a mechanical load sensing valve for the rear brakes was standard throughout production.^[5]

For wheel options, the standard five-arm "Fuchs" forged blend wheels were eight.0Jx16H2 ET40, and were shod with 225/fifty R16 sized tyres. Several other tyre and wheel designs were optionally bachelor: a vii.5Jx15H2 ET40 six-spoke with 215/60 R15 tyres, an 8.0Jx16H2 ET40 five-double-spoke, a 7.5Jx16H2 ET35 six spoke "Avus", and an eight.0Jx17H2 ET40 ten-spoke.^[5]

B5 (Typ 8D, 1997–2002) [edit]

Motor vehicle

Second generation (B5/8D)
Overview
Production	Oct 1997–September 2001[v]
Torso and chassis
Body fashion	4-door saloon/sedan[5] 5-door manor/wagon (Avant)[5]
Platform	Volkswagen Group B5
Related	Audi B5 A4 Audi B5 RS4
Powertrain
Engine	ii.7 50 V6 30v DOHC 'biturbo'[5]
Manual	6-speed transmission,[five] 5-speed ZF 5HP19 tiptronic automatic[5]
Dimensions
Wheelbase	2,615 mm (103.0 in)
Length	4,483 mm (176.5 in)
Width	1997-99: one,733 mm (68.two in) 2000-02: 1,848 mm (72.viii in)
Height	saloon: 1,396 mm (55.0 in) Avant: ane,418 mm (55.8 in)
Kerb weight	ane,535 kg (3,384 lb) to 1,680 kg (3,704 lb)
Chronology
Predecessor	Audi C4 S4
Successor	Audi B6 S4

The second generation S4 ( Type 8D), also known as the Audi S4 quattro debuted in 1997, with mill production commencing October 1997,^[v] every bit part of the facelifted B5 platform Audi A4 line-up, although it wasn't available in North America until belatedly 1999.

In addition to the saloon (sedan), an estate version (wagon)–the Audi S4 Avant–was introduced into the lineup from 1998. Product of the B5 S4 ceased in September 2001,^[5] although it was still sold together with the adjacent B6 platform generation through 2002 in Due north America. Examples produced July 2001 to finish of production are 2002 Model Year cars, the 10th digit of the VIN being the number "2".

Several years after it was sold new, the B5 S4 remains a potent enthusiast car, and as featured in the December 2007 issue of Sport Compact Car magazine, a Torque Mill tuned S4 won a comparing examination against several other extreme performance cars.^[9]

B5 powertrain [edit]

The powertrain details^[5] of the B5 S4 feature a 2.7-litre twin-turbo ('biturbo') 90° tertiary-generation V6 engine (parts code prefix: 078, identification codes: AGB, AZB, APB). Details of the powerplant include a cast fe cylinder block with two lightweight aluminium alloy cylinder heads. The valvetrain includes 30 valves (five valves per cylinder),^{[10] [xi]} twin hybrid-driven (timing belt and roller concatenation) double overhead camshafts and variable valve timing for the inlet valves. The intake air is pressurized by two parallel water-cooled BorgWarner K03-series turbochargers; the charged air is cooled by two side-mounted air-to-air intercoolers (SMICs). Information technology displaces 2,671 cubic centimetres (163.0 cu in), and is rated to produce a motive power output of 195 kW (265 PS; 261 bhp) at 5,800 rpm, and generates 400 N⋅one thousand (295 lbf⋅ft) of torque at 1,850 rpm. Engine direction was by way of a Bosch Motronic ME seven.1 (7.0 in Due north America) electronic engine control unit (ECU), and helped it see the European European union-3D emissions standard. In all The states-market cars, the engine was detuned to meet US emissions regulations; output was reduced to 184 kW (250 PS; 247 hp) and 350 North⋅m (258 lbf⋅ft) (identification lawmaking: APB).

As in the previous S4, a 6-speed C90 manual transmission (parts lawmaking prefix: 01E, identification code: DSY, gear ratios: 1st: three.500, 2nd: 1.889, tertiary: 1.231, fourth: 0.967, 5th: 0.806, 6th: 0.684) was standard equipment, as was the Torsen T-2 quattro permanent all-bicycle drive organisation. Final drive (parts code prefix: 01H, identification code: DQA) ratio is iv.111. A five-speed ZF 5HP19 tiptronic automatic transmission (parts code prefix: 01V) became available for the first time every bit an option.^[5]

The B5 S4 claims dispatch from 0 to 100 km/h (0.0 to 62.1 mph) in five.7 seconds, and has an electronically limited tiptop speed of 250 km/h (155.3 mph), making it both the quickest saloon/sedan in the Audi model line, and amid the quickest saloon/sedans in the globe at that time.^{[ citation needed ]}

B5 suspension, brakes, wheels & tires [edit]

The B5 S4 is fitted with 4-cycle independent intermission. The front suspension is a multi-link pattern with iv individual control arms per cycle. The rear break is an unequal length double wishbone design; the lower control arms are mounted to a subframe which likewise carries the differential housing. Stupor absorbers, coil springs, and anti-coil bars are fitted forepart and rear.

The B5 S4 brake system^[5] consisted of radially ventilated discs, 321 mm (12.64 in) in bore past thirty mm (i.xviii in) thick up front, and 256 mm (10.08 in) by 22 mm (0.87 in) at the rear. Two-piston Lucas HP2 brake calipers at the front end (with four pads per caliper), with Lucas single-piston sliding brake calipers at the rear. A Bosch ABS 5.three 4-channel Anti-lock Braking System (with Electronic Brakeforce Distribution (EBD) and Electronic Differential Lock (EDL) - and later with ESP or Electronic Stability Program), coupled with a vacuum servo completed the system.

Standard wheels^[5] were Audi's die-cast aluminium alloy six-arm 'Avus' 7.5Jx17H2 ET45 wheels, shod with 225/45 ZR17 performance tyres.

B5 colors & optional equipment [edit]

Available exterior colors included Brilliant Black, Laser Red, Light Silver, Cactus Green, Santorin Blue, Hibiscus Red, Casablanca White, Pearlescent White, Imola Yellow (spicy mustard), and Nogaro Blue. The concluding two colors were exclusive to the S4 model. Interior leather was available in Onyx or Silver. Bachelor options included:

• Bose premium sound organization
• Audi Navigation System
• 6-disc CD changer
• Easily gratuitous Motorola cellular telephone
• Premium Bundle: Sunroof, HomeLink transmitter, Auto dimming mirrors
• Cold Weather Package: Heated front seats, Heated outside mirrors, Expandable ski sack
• Enhanced Sport Packet: Alcantara seat inserts, Silvery aluminum belt line trim or Carbon Fibre trim (on belatedly 2000-2001 models), Aluminum mirror housings (on 2001 & 2002 models)

The Sport Package replaced the wood-grain chugalug line trim with argent aluminum trim, and the wood grain finish effectually the shifter with black plastic. The Alcantara seat inserts were silvery (on Onyx leather). With the black, white, or blueish exteriors, the inserts were also bachelor in blue Alcantara. On the early on 2000 models, the Alcantara inserts in the rear seats did not fully extend forrad to the front border of the seat.

B5 motorsport [edit]

A motor racing version of the auto accomplished great success in the SpeedVision World Claiming with Michael Galati taking the 2001 SpeedVision GT title in a Champion Racing S4, winning four races, and helping Audi to its first Manufacturers' Championship.

The Audi Sport specification Champion A4 chassis included a B5 RS4 engine, and Alcon racing brake calipers (4 piston front and ii piston rear calipers).

Don Istook, with Istook's Motorsports, congenital and campaigned several B5 S4'due south in first the Motorola Cup, and so the Grand Am Loving cup. The S4's were even raced by Istook's Motorsports in the Rolex GT category for several races to help fill the field. Of note, one of the S4'due south, racing confronting true GT cars, fifty-fifty ran every bit loftier as second place (in the rain) at Barber Motorsports Park.^{[ citation needed ]} These S4's were built using existing S4, not RS4 engines, only used the B5 Audi RS4 K04 turbochargers.

B6 (Typ 8E/8H, 2003–2005) [edit]

Motor vehicle

Tertiary generation (B6/8E/8H)
Overview
Production	Mar 2003–Dec 2004 Feb 2004–December 2005 (Cabrio)[5]
Body and chassis
Torso mode	4-door saloon/sedan,[v] 5-door manor/wagon (Avant),[v] 2-door cabriolet[5]
Platform	Volkswagen Group B6 (PL46)
Related	Audi B6 A4
Powertrain
Engine	4.2 L V8 40v DOHC[5]
Transmission	6-speed Getrag manual,[5] 6-speed ZF 6HP19 tiptronic automatic[5]
Dimensions
Wheelbase	2,651 mm (104.4 in), Cabrio: 2,654 mm (104.5 in)
Length	iv,575 mm (180.ane in), Cabrio: 4,573 mm (180.0 in)
Width	1,781 mm (70.1 in), Cabrio: 1,778 mm (70.0 in)
Height	one,415 mm (55.7 in), Cabrio: 1,391 mm (54.8 in)
Kerb weight	saloon: 1,660 kg (3,660 lb) estate: 1,720 kg (3,792 lb) cabriolet: 1,855 kg (4,090 lb)
Chronology
Predecessor	Audi B5 S4
Successor	Audi B7 S4

2003–2005 S4 (B6) saloon (United states of america)

MY2003–2005 Audi S4 (B6) Avant (Canada)

The third generation Audi S4 quattro ( Typ 8E — saloon: 8E2, Avant: 8E5, and Cabriolet: 8H7) debuted its saloon and Avant bodystyles in Europe in March 2003,^[5] and appeared in N America slightly after.^{[ when? ]} This was based on the latest Volkswagen Grouping B6 (PL46) platform used by the so current Audi B6 A4. Despite having moved to an entirely new platform, one of the S4's most publicised new features was its new engine - a 4.two-litre V8 engine. Following its initial launch of either a iv-door 5-seat saloon (sedan), or a five-door 5-seat Avant (estate/wagon), information technology eventually became available in three bodystyles - and for the first time in the Audi 'S' car range, from February 2004, a two-door four-seat Cabriolet (convertible), Typ 8H, was included in the model range.^[12]

Official operation figures for standard discipline of sprinting from standstill to 100 km/h (62.ane mph) in the saloon with manual manual are 5.6 seconds (Avant five.eight s, Cabriolet 5.ix s), however, a route examination conducted by the American automotive magazine Motor Trend ^[xiii] indicated that it could go from a standstill to sixty mph (96.6 km/h) in less than 5 seconds, and make it to 200 km/h (124.iii mph) in slightly over 20 seconds, although doing this led to fuel consumption dipping into single digits. This was considerably worse than the earlier V6 models, leading to the addition of a $1,700 gas guzzler tax (combined 20.2 miles per US gallon (11.six L/100 km; 24.3 mpg_‑imp)) for the half-dozen-speed manual sedan in the Usa. Meridian speed is electronically limited to 250 km/h (155.3 mph).

The B6 S4 saloon and Avant variants ceased manufactory production in Dec 2004, with the Cabriolet catastrophe twelve months after at Dec 2005.^[v]

B6 powertrain [edit]

Replacing the two.seven-litre 'biturbo' V6 engine of the previous generation B5 S4, the new B6 S4 powertrain^[5] gained an all-aluminium alloy 4.two-litre, xl valve (five valves per cylinder) V8 engine (parts lawmaking prefix: 079.C, identification code: BBK), with chain-driven double overhead camshafts, roller-finger rocker arm cam followers, and included variable inlet camshaft timing. It as well used a strengthened alloy crankshaft bedplate for the v master bearings, and a 2-part baffled oil sump, and a lite-alloy variable intake manifold (VIM), containing the fractionally sequentially actuated fuel injectors. This petrol engine, based on the unit from the Audi A8, displaces 4,163 cubic centimetres (254.0 cu in), and it produces a motive power output of 344 PS (253 kW; 339 bhp) at 7,000 rpm, and generates torque of 410 N⋅m (302 lbf⋅ft) at 3,500 rpm, making it more powerful than the RS2 Avant, and nearly as powerful as the B5 RS4. Engine direction was past fashion of a Bosch Motronic ME 7.i.one electronic engine control unit (ECU), using a Bosch 'Eastward-Gas' bulldoze past wire electronic throttle, and powering eight private spark coils with longlife quad-electrode Bosch spark plugs. Ignition timing is a mapped straight ignition, with cylinder-selective knock control with the aid of four knock sensors. The exhaust organization includes vacuum-operated valves in the twin rear silencers (mufflers), finished with chrome plated tail-pipes.

Like its predecessors, the B6 S4 was standard with a Getrag six-speed (M6S) manual manual (parts code prefix: 0A3, identification codes: FVD, HEP) (gear ratios - 1st: 3.667, 2nd: 2.050, tertiary: 1.462, 4th: ane.133, 5th: 0.919, 6th: 0.778),^[5] with a 240 mm (9.4 in) single plate dry clutch, and Torsen T-ii quattro permanent four-wheel drive system. Final drive (parts lawmaking prefix: 01R, identification code: EXZ) ratios are three.889,^[v] giving a top gear road speed to engine revs ratio of 24.4 miles per 60 minutes (39.3 km/h) per m rpm. From July 2003,^[v] the ZF 6HP19 tiptronic automated transmission (parts code prefix: 09L, identification codes: GUR, HHU) (ratios - 1st: 4.171, 2d: two.340, 3rd: 1.521, 4th: 1.143, 5th: 0.867, 6th: 0.691, with a final drive (identification code: GDF) ratio of iii.539) was included as an option.

An unusual sight in the engine compartment was the addition of water cooling for the 190 amp alternator,^[5] along with two additional thermostatically-controlled side-mounted radiators.^[v]

B6 steering, brakes, wheels & tyres [edit]

The B6 S4 came equipped with electronically controlled, variable assisted 'servotronic' rack and pinion ability assisted steering (PAS) every bit standard.^[5]

B6 S4 brakes^[5] consisted of radially ventilated disc brakes forepart and rear. The front end discs are sized at 345 mm (13.58 in) in diameter by 30 mm (1.181 in) thick, and are clamped by Continental Teves-ATE FNRG-threescore single-piston sliding brake calipers. The rears are 300 mm (11.81 in) by 22 mm (0.866 in), and once again apply single-piston sliding calipers, with an integrated cable-operated hand restriction mechanism. A Bosch ESP 5.7 Electronic Stability Program system, complete with Anti-lock Braking System (ABS), Electronic Brakeforce Distribution (EBD), Emergency Brake Assist (EBA), Electronic Differential Lock (EDL) and Anti-Slip Regulation (ASR) - too known equally traction command system, coupled with a dual-charge per unit tandem vacuum servo provided the brake actuation.

Standard wheels^[5] were 'Avus-III dice-cast aluminium blend, 8.0Jx18H2 ET45 in size, and shod with 235/forty ZR18 95Y XL (eXtra Load) high performance tyres, with factory supplies existence either Continental SportContact2 or Michelin PilotSport PS2.

B6 body & interior [edit]

Discrete lower door trims, forth with the now trademark Audi 'South' model vertical-accent line grille, and solid aluminium (after replaced with plastic covered by aluminium) exterior door mirrors, and S4 badging front end and rear are all that visually distinguish the S4 from its related A4 brethren. In the interior, front and rear Recaro seats (fronts fully electric with the choice of heated seats), as well as S4 logos in the musical instrument panel and door sills complete the particular.

B7 (Typ 8E/8H, 2005–2009) [edit]

Motor vehicle

Fourth generation (B7/8E/8H)
Audi S4 Avant quattro in Sprint Blue with Avus-III alloy wheels (8ED, Europe)
Overview
Production	November 2004–Jun 2008[5] Jan 2006–2008 (cabrio)
Body and chassis
Body style	4-door saloon/sedan,[5] 5-door estate/wagon (Avant),[v] 2-door cabriolet[v]
Platform	Volkswagen Group B7 (PL46)
Related	Audi B7 A4 Audi B7 RS4 SEAT Exeo
Powertrain
Engine	4.2 L V8 40v DOHC[5]
Transmission	half dozen-speed Getrag manual,[v] 6-speed ZF 6HP19 tiptronic automatic[5]
Dimensions
Wheelbase	two,648 mm (104.3 in) Cabrio: 2,654 mm (104.5 in)
Length	iv,586 mm (180.6 in) Cabrio: four,572 mm (180.0 in)
Width	1,781 mm (70.one in) Cabrio: 1,778 mm (70.0 in)
Height	1,415 mm (55.7 in) Cabrio: 1,392 mm (54.8 in)
Chronology
Predecessor	Audi B6 S4
Successor	Audi B8 S4

Audi S4 Sedan quattro (8EC, Northward America)

Audi S4 Cabriolet with optional 7-spoke alloy wheels (8HE, U.S.)

Audi S4 Avant quattro (8ED, Europe)

The Audi B7 platform Audi S4 quattro, based on the Audi B7 A4, debuted in late 2004. Although Audi classifies it as a new car, the differences between information technology and the outgoing B6 S4 casually appear to be primarily corrective, and is still classified by the internal designation: Typ 8E (although with revised sub-designations - saloon: 8EC, Avant: 8ED, and Cabriolet: 8HE).^[5] It has the same iv.2-litre V8 engine (identification lawmaking: BBK) equally the B6 S4, producing a power output of 253 kW (344 PS; 339 bhp) at 7,000 rpm, and 410 Due north⋅thousand (302 lbf⋅ft) torque at three,500 rpm.

There are a few mechanical changes, such equally revised springs and dampers and, from model year 2007, an updated Torsen T-3 automatically biasing centre differential, featuring a 'default' disproportionate 40:sixty front end-rear torque split on manual transmission models, forth with the later Bosch ESP viii.0 Electronic Stability Programme^[5] and gloss black painted brake calipers.^[v] The 'Avus-3' wheels at present became an option, and were replaced by a standard offer eight.0Jx18 inch 'S-design' 7-spoke forged alloy bike.^[5]

Bose audio organization is now standard, whereas it was optional on the B6 S4, and an enhanced optional DVD-ROM-based RNS-Eastward satellite navigation organisation replaces the previous CD-ROM-based RNS-D option.

The new trapezoidal single-frame grille, Bi-Xenon high-intensity discharge lamp (HID) headlamps, L-shaped tail-lamps, quad exhaust tail pipes, and discrete V8 badging below the side repeater indicators aid distinguish the B7 from the previous B6 model.

Audi S4 25quattro [edit]

Audi "S4 25quattro" special edition (8EC)

In June 2005,^[5] Audi announced a limited edition run of 250 special edition S4 saloon cars, celebrating 25 years of quattro four wheel drive. This exclusive model was called the Audi S4 25quattro. Bachelor only in the United States, the exterior has unique front and rear bumpers, a carbon fibre kicking lip spoiler and lower front splitter, a rear functional blood-red tow hook, and a loftier gloss Phantom Black painted grille with the "quattro" emblem. 15-spoke DTM alloy wheels, forth with optional dealer-fitted 'Audi four-rings' decals for the front end doors complete the exterior makeover. Blackness and grey contrasting interior leathers, along with "quattro" embossed into the Recaro seats, together with a "one of 250" sectional quattro gear shift knob for the manual-only gearbox ascertain the interior changes and human action equally a subtle reminder of the exclusivity that the limited numbers command.

On the mechanical side, the S4 25quattro was the second Audi, later the B7 RS4 to be fitted with the latest Torsen T-3 asymmetric ATB centre differential for its quattro permanent four-wheel drive system. Nether normal grip conditions, this is gear up with a default rearwards torque distribution bias of twoscore:60 front to rear, and a maximum of 100% torque can automatically exist apportioned to the rear axle (and up to fourscore% to the front) as conditions warrant. The final drive ratios are 3.889.

B8 (Typ 8K, 2009–2016) [edit]

Motor vehicle

Fifth generation (B8/8K)
Overview
Product	Nov 2008–2016
Body and chassis
Body style	iv-door saloon/sedan,[5] 5-door estate/wagon (Avant)[5]
Platform	Volkswagen Grouping MLB/MLP
Related	Audi B8 A4 Audi B8 RS4 Audi A5
Powertrain
Engine	3.0L supercharged V6 FSI
Transmission	half dozen-speed manual,[five] vii-speed Dual-clutch transmission 'S tronic'[5]
Dimensions
Wheelbase	2,811 mm (110.7 in)
Length	4,717 mm (185.7 in)
Width	1,826 mm (71.9 in)
Height	saloon: 1,406 mm (55.4 in) estate: 1,415 mm (55.7 in)
Kerb weight	ane,650–1,735 kg (3,638–iii,825 lb)
Chronology
Predecessor	Audi B7 S4
Successor	Audi B9 S4

Audi S4 Sedan quattro (B8/8K, Australia)

Audi S4 Avant (B8/8K, South Africa)

From November 2008, the latest generation of the 'Audi S4 quattro'^[xiv] ( Typ 8K) entered factory production. 0-60 in 4 seconds. ^[5] It is based on the current Audi B8 A4,^[15] built on the Volkswagen Group MLB/MLP platform. Unlike the previous B6 and B7 models, the new B8 version was only available as a 4-door five-seat saloon (sedan), or a five-door 5-seat Avant (estate/wagon). The sport-performance two-door 4-seat Cabriolet (convertible) mantle is now taken past the electric current Audi S5 Cabriolet and new Coupe. Unlike previous generations of the S4, only the sedan will be imported to the U.s.a. and Canada.

Compared to the previous B6/B7 S4 which used a four.2-litre V8 engine, this latest B8 S4 uses a smaller deportation 3.0-litre TFSI V6 engine, but now with the addition of forced induction via an Eaton mechanical supercharger.^[1]

The previous B6/B7 S4s were the acme-of-the-line models in Due north America, ahead of the 3.2L V6 and 4-cylinder 2.0T A4s, and competed with the BMW E46 330 and E90 335 respectively. The 3.0 TFSI V6 engine replaces the 3.2-litre FSI V6 as the upgrade engine in the A4 and A6 lineups starting for 2009; both the 3.ii-litre FSI and 3.0 TFSI were offered together until the end of the 2010 model year.^[sixteen] The 3.2L V6 engine is no longer offered in the A4 lineup from the 2011 model yr onwards, so the recently introduced B8 S4 is now priced nine% lower than its V8 predecessors, and slots directly above the 4-cylinder two.0T base model. The S4 now compares more than closely with the BMW 335i.

Previously unavailable enthusiast driver aids are now optional, such every bit Audi'south Sport Rear Differential, active steering and adaptive damping suspension (office of the Audi Drive Select Package). The front axle was moved by 6.1 inches to the front, which improved the weight distribution of the B8 Platform. Combined with the Sport Rear Differential Audi was able to greatly improve the weight residuum and dynamics of the S4 over previous models.^{[17] [18] [19]}

A new designed bike is included on the B8 S4, an 8.5Jx18" '5-double-spoke S' design blend wheel with 245/40 ZR18 loftier performance tyres. Optional xix inch wheel and tyre packages are also bachelor, sized at 8.5Jx19" blend wheels with 255/35 ZR19 tyres. LED tail lights are standard fitment, along with Audi's at present-trademark LED daytime running lights at the front.

The S4 along with the other B8 models received a facelift in early 2012. This included a revised front-end with new headlights and grille, an updated interior, and upgraded MMI options. Mechanically, the facelift B8 (known colloquially as the B8.5) was upgraded with electromagnetic steering and a lighter crown gear center differential.

B8 powertrain [edit]

At the heart of the B8 S4 powertrain is an all-new, all aluminium-alloy 3.0-litre TFSI Supercharged (TFSI) V6 engine (parts lawmaking prefix: 06E, identification code: CAKA),^[5] and like the balance of the B8 model range, now with Fuel Stratified Injection (FSI). This petrol engine displaces two,995 cubic centimetres (182.viii cu in), and it is rated by Audi to a ability output of 245 kW (333 PS; 329 bhp) from 5,500 to vii,000 rpm. Torque is rated at 440 N⋅m (325 lbf⋅ft) from 2,900 to 5,300 rpm. This loftier power output is achieved by using forced induction – and specifically, an all-new Eaton 'Twin Vortices Series' (TVS) Roots-blazon positive displacement compressor.^{[20] [21]} This new supercharger features twin four-lobe rotors, which are axially twisted 160 degrees. It is mounted on tiptop of the engine, within the 'Vee', pumping air directly into the inlet manifold, and incorporates ii split up water-cooled intercoolers. This new pattern of supercharger is said to reduce the noise, vibration, and harshness (NVH) of the engine.

This engine is mated to either a six-speed manual transmission (identification lawmaking: KMR)^[5] or a seven-speed 'S tronic' DL501^[22] dual clutch transmission^[23] (identification code: LHK),^[5] the latter with steering wheel mounted paddle-shifters for tiptronic gear option, which replaces the Tiptronic automated transmissions establish in the B6/B7 iterations. The 'Audi quattro Sports differential' fitted in the rear beam last drive unit is bachelor equally an option.

Acceleration from a standstill to 100 km/h (62.1 mph) takes five.1 seconds^[24] for the saloon with manual gearbox, the Avant one tenth of a second slower at 5.2 seconds. The same nuance to 100 km/h (62 mph) in the saloon with S tronic takes 5.3 seconds, and the Avant at 5.iv seconds. The top speed is electronically limited to 250 km/h (155.3 mph). However, a comparison in the American automotive mag Road & Track ^[25] showed the sprint from 0 to sixty mph (97 km/h) in four.5 seconds for the 6-speed manual transmission. With figures like these, the B8 S4 accelerates more speedily than its V8-engined predecessors.^[1] Audi of America claims that the version of the S4 achieves 28 highway miles per gallon, and a 0 to lx mph (96.6 km/h) acceleration time of 4.9 seconds with the transmission manual^[26] and 5.1 seconds with the S tronic.^[27] Fuel consumption is rated at a combined 24.2 miles per US gallon (nine.seven L/100 km; 29.i mpg_‑imp).^[24] Therefore, the B8 S4, unlike the V8-powered B6/7 models, avoids the U.s.a. gas guzzler tax. The B8 S4's 3.0 TFSI engine likewise gets simply 1 m.p.thousand. less than the base two.0 TFSI engine.^[28] This is one of the most important reasons for Audi to downsize their engines, while keeping the output equivalent better, by using forced-induction such every bit supercharging or turbocharging.^[1]

The aforementioned engine is shared with the Audi S5 Cabriolet (though the 7-speed Southward Tronic is the sole transmission) and the 2013 Audi S5 Coupe. Detuned versions of this engine making 310 PS (228 kW; 306 hp) are found in the 2009-11 Audi A6 iii.0 TFSI (C6) mated to a six-speed TipTronic automatic transmission, the 2012 Audi A6 3.0 TFSI (C7) and 2012 Audi A7 three.0 TFSI, the latter 2 which are paired with an 8-speed TipTronic automated.

Motorsport [edit]

In motor racing, April Motorsport has currently entered a B8 S4 in the Grand-Am Continental Tire Sports Car Challenge M Sport (GS) grade.^[29]

B9 (Typ 8W, 2017–nowadays) [edit]

Motor vehicle

Sixth generation (B9/8W)
2017 Audi S4 quattro iii.0 TFSI (UK)
Overview
Production	2017–present
Body and chassis
Body style	4-door saloon/sedan,[5] five-door estate/wagon (Avant)[5]
Platform	Volkswagen Group MLB/MLP
Related	Audi A4 Audi B9 RS4 Audi A5
Powertrain
Engine	3.0L Turbocharged V6 TFSI 3.0L V6 TDI (2019-present, European markets just)
Transmission	8-speed ZF 8HP tiptronic automatic
Dimensions
Wheelbase	2,820 mm (111.0 in)
Length	4,726 mm (186.1 in) 4,745 mm (186.8 in) (Avant)
Width	one,842 mm (72.5 in)
Summit	one,427 mm (56.2 in)
Kerb weight	1,750 kg (3,858 lb)
Chronology
Predecessor	Audi B8 S4

Audi announced the B9 S4 in 2015, with the official unveiling of the European-spec model at the 2015 Frankfurt Motor Evidence. Noticeable changes to the B9 included a mod, more athwart exterior, newly designed wheels, and a new turbocharged V6 engine. Dissimilar the pre-facelift B8 S4, the announced European-spec model is only available with an eight-speed torque converter automatic (ZF 8HP55a).

Audi S4 Avant quattro 3.0 TFSI (U.k.)

Audi S4 Avant facelift (Germany)

The new model uses LED master-beam and LED daytime running lights as standard, alongside dynamic plow signals and LED tail-lights. Like other Audi models, the notable feature in the new S4 is Virtual Cockpit which has Classic Layout and Sports Layout in displaying speedometer and tachometer.

The B9 S4 features standard 18-inch 5 double-spoke wheels with summer tires, or optional 19-inch 5 5-spoke wheels.

The B9'due south brakes apply multi-piston calipers, replacing the single-piston sliding calipers of before models. LED headlights are standard while a apartment-bottomed steering bike, "S" embossed seats, and quad tailpipes differentiate the S4 from the B9 A4.

B9 powertrain [edit]

The current generation S4 is powered by a 3.0 L V6 with petrol straight injection and a single twin-scroll turbo powering the EA839 engine with 354 PS (260 kW; 349 hp) and 500 N⋅m (369 lbf⋅ft). The engine uses a hot inside V layout, which places the cylinder caput exhaust ports, frazzle manifolds, and turbocharger inside the V of the engine; this is a like arrangement to the twin-turbo V8 engines used in Audi'southward C7/C8 RS6 and RS7 (including C7 S6/S7).

Equally a effect of the powertrain upgrades in the new S4, information technology now can advance from 0 to lx mph (97 km/h) in 4.2 seconds.^[30] It is electronically limited to a top speed of 155 mph (249 km/h).^[31]

In European markets, the facelifted B9 S4 - launched in 2019 - is at present powered by a three.0-litre turbocharged diesel V6 with 347 PS (255 kW; 342 hp) and 700 N⋅m (516 lbf⋅ft), mated to a ZF 8-speed torque converter automatic gearbox and all-cycle-drive. For exterior of European markets, notwithstanding, it still retains the 3.0-litre petrol turbo V6.

See as well [edit]

Wikimedia Commons has media related to Audi S4.

• Audi S6 (C4)
• Audi Due south and RS models

References [edit]

1. ^ ^{a b c d e} Dyer, Ezra (11 March 2010). "Behind the Bike - 2010 Audi S4 - Less Motor, More Grip, and It All Makes Sense - Review". nytimes.com. Archived from the original on eighteen March 2010. Retrieved 21 March 2010.
2. ^ AudiWorld.com North American S4 Model Guide - historical S4 specifications, prices, and options
3. ^ "Audi".
4. ^ "2018 Audi S4 and S5 First Drive Review: S is for "Smoove"". 24 April 2017.
5. ^ ^{a b c d due east f g h i j k l grand due north o p q r s t u v w 10 y z aa ab ac advert ae af ag ah ai aj ak al am an ao ap aq ar as at au av aw ax ay az ba bb bc bd be bf bg bh bi bj bk bl bm bn bo bp bq} ETKA official factory data^{[ clarification needed ]}
6. ^ Stephen Fifty. Thompson. "Preview: Audi S4". Car and Commuter (March 1992): 79–eighty.
7. ^ rodrigo gato. "Magnum Forcefulness". Auto and Commuter (April 1992): 47–56.
8. ^ "Senna: aceleramos os carros do campeão". Car and Driver (Portugal). xi June 2014. Archived from the original on viii February 2015. Retrieved 9 February 2015.
9. ^ Sport Meaty Car mag 2007 Ultimate Street Car Challenge Archived 14 March 2008 at the Wayback Machine "The Audi S4 ... showed its adequacy with consistently strong finishes in the acceleration, dyno, braking and driveability tests"
10. ^ Audi Self-Study Programme SSP198 - The 2.seven-litre V6 biturbo
11. ^ Audi.com - Glossary five valves per cylinder
12. ^ Audi Technical Information sheets - 2003 S4 quattro - saloon, Avant, and Cabriolet
13. ^ "Sports Automobile Comparing: 2004 Audi S4 vs. 2003 Mercedes-Benz C32 AMG". Motortrend.com. 26 Feb 2007. Retrieved ane October 2010.
14. ^ Audi.co.britain Audi S4 Archived 18 March 2009 at the Wayback Machine
15. ^ AudiWorld.com News Performance Preview: exclusive wait at the B8 S4 xviii Nov 2007
16. ^ "2010 Audi S4 - Test drive and new car review - 2010 Audi S4". Cars.about.com. 11 June 2010. Retrieved 1 Oct 2010.
17. ^ "Iv-Door Firepower — page 3 - Comparison Exam". RoadandTrack.com. 16 March 2010. Retrieved 22 January 2012.
18. ^ Wiesenfelder, Joe (6 Nov 2009). "2010 Audi S4 Review by Joe Wiesenfelder". Cars.com. Archived from the original on 5 April 2012. Retrieved 22 January 2012.
19. ^ "2009 BMW 335i vs 2010 Audi S4". Machine Magazine. 13 Nov 2009.
20. ^ Parks, Jim (17 July 2008). "Audi Selects Eaton TVS Supercharger To Power Fuel Efficient V6". eaton.com. Eaton Corporation. Retrieved 24 July 2009. when paired with direct injection and enhanced manual ratio, the TVS supercharger helps the engine achieve 290 hp with an average fuel economy of nearly 24 miles per gallon
21. ^ Parks, Jim (6 November 2008). "Eaton TVS Supercharger Featured On 2010 Audi S4/S4 Avant". eaton.com. Eaton Corporation. Retrieved 24 July 2009. When combined with direct injection, the TVS surpasses twin turbochargers in packaging, starting functioning and responsiveness
22. ^ "The Audi S4". hillsideimports.com. Hillside Imports. 9 August 2014. Retrieved 13 May 2015.
23. ^ PaulTan.org blog B8 Audi S4 Sedan and Avant unveiled!
24. ^ ^{a b} "Audi Deutschland". Audi.de. 29 April 2010. Archived from the original on 26 September 2010. Retrieved 1 October 2010.
25. ^ "2010 Audi S4". Road & Track. 12 Oct 2010.
26. ^ "The 2010 Audi S4 is finally here". audisite.com.
27. ^ "2010 Audi S4 Review". automoblog.net.
28. ^ Ulrich, Lawrence (27 December 2009). "A Holiday From Wishful Thinking". The New York Times.
29. ^ M-Am.com Fresh From Florida 200, entry listing Archived 16 January 2010 at the Wayback Machine
30. ^ "2018 Audi S4 First Test: So Quick! Merely…". www.motortrend.com. 5 Feb 2018. Retrieved 21 May 2020.
31. ^ "Review: the 349bhp Audi S4 Avant". www.topgear.com. eighteen January 2017. Retrieved 10 November 2017.

External links [edit]

• Audi.com - international corporate portal
• Audi UK - S and RS models
• Audi Us - S4

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Brake Rotor in German 1990 Audi V8 Quattro Oil Filter Location

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