Celtic1212 (talk | contribs) m →B6 (Typ 8E/8H, 2003-2004){{anchors|B6|8E|8H}}: Changed 100 km/h to 60 mph (Motor Trend ran the typical US zero to 60, not 62 mph test) |
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==External links== |
==External links== |
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*[http://www.zeroto60times.com/Audi-0-60-mph-Times.html Audi S4 0-60 Times] |
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*[http://www.audi.com Audi.com] international corporate portal |
*[http://www.audi.com Audi.com] international corporate portal |
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*[http://www.audi.co.uk/audi/uk/en2/new_cars/S_RS_models.html Audi UK - S and RS models] |
*[http://www.audi.co.uk/audi/uk/en2/new_cars/S_RS_models.html Audi UK - S and RS models] |
Revision as of 17:53, 5 July 2009
Audi S4 | |
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![]() 2000 Audi B5 S4 saloon | |
Overview | |
Manufacturer | Audi AG |
Also called | S4 quattro |
Production | 1991–present |
Assembly | Ingolstadt, Germany |
Body and chassis | |
Class | Compact executive car, Sports car |
Layout | longitudinal front engine, quattro permanent four-wheel drive |
Related | Audi A4, Audi RS4 |
The Audi S4 name was originally used for the high performance sport version of the Audi 100 car, and has subsequently been used for similar versions of the Audi A4 series.
Manufactured at Audi AG's Ingolstadt plant in Germany, they are, or have been available as a five-door five-seat Avant, Audi's name for an estate car (station wagon), a four-door five-seat saloon (sedan), and a two-door four-seat Cabriolet (convertible) version. Furthermore, their internal combustion engines are all front-mounted, and are longitudinally orientated. Irrespective of the type of transmission offered, they are all mounted immediately at the rear of the engine in a longitudinal orentation, in the form of a transaxle.
Like all Audi 'S' cars, the S4 is only available with Audi's quattro four-wheel drive (4WD) system, with differing variations of the S4 utilising either the Torsen-based permanent full-time 4WD, or a transfer box based 4WD.[1] The S4 has a larger more powerful internal combustion engine, larger uprated brakes, and uprated stiffer suspension systems - all of which are not shared with the remainder of the A4 range.[2]
C4 (Typ 4A, 1991-1994)
Audi C4 S4 (Typ 4A) | |
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Audi C4 S4 saloon "Ur-S4" (Europe) | |
Overview | |
Also called | "Ur-S4", Typ 4A |
Body and chassis | |
Body style | 4-dr saloon/sedan 5-dr Avant (estate/wagon) |
Platform | Volkswagen Group C4 platform |
Related | Audi 100 (C4), Audi S6 (C4) |
Powertrain | |
Engine | 2.2 L I5 20v turbo (08/91-07/94)[1] 4.2 L V8 32v (10/92-07/94)[1] |
Transmission | 5-sp manual 6-sp manual 4-sp automatic[1] |
Dimensions | |
Wheelbase | 2,692 mm (106.0 in) |
Length | 4,790 mm (188.6 in) to 4,892 mm (192.6 in) |
Width | 1,803 mm (71.0 in) |
Height | 1,443 mm (56.8 in) |
Kerb weight | saloon: 1,730 kg (3,814 lb), Avant: 1,780 kg (3,924 lb) |
Chronology | |
Successor | Audi C4 S6, Audi B5 S4 |
Audi was reconfiguring its model range during the early 1990s, and introduced the original Audi S4 (Typ 4A) in 1992, as the performance version of the restyled Audi 100 (C4) four-door, five-seat saloon. Despite being based on the Volkswagen Group C4 platform, and sharing its basic structure with the 100, the S4 effectively took the place of the Audi 200 quattro turbo, which had been discontinued the year before.[3][4] Being the first S4 model from Audi, it is commonly referred to as the Ur-S4, derrived from the German language augmentive word - Ursprünglich (meaning: original).
Following Audi's decision in discontinuing the 100 nameplate, it re-badged the car as the Audi A6 in 1994, and the S4 became the S6, although the only real changes to the model were minor cosmetic updates, and the addition of a more powerful limited edition S6 Plus model using the V8 engine. After the first generation A6 was replaced in 1997 by an updated version based on C5 chassis, the S4 and S6 became distinctly separate from one another.
C4 powertrain
The powertrain detail of the C4 S4 featured a turbocharged version of Audi's 2.2 litre - 2,226 cubic centimetres (135.8 cu in) - 20-valve inline five cylinder petrol engine, (parts code prefix: 034, identification code: AAN), developing 169 kilowatts (230 PS; 227 bhp) and 350 newton-metres (258 lbf⋅ft) of torque.[1] Bosch Motronic engine control unit took care of all functions of the engine management.[1]
Standard transmission offerings[1] were a manual gearbox (parts code prefix: 01E) - five- (identification codes: CBD, CET) and six-speed (identification codes: CBL, CMG) in Europe, five-speed only in North America, although a four-speed automatic transmission (parts code prefix: 01F, identification code: CBF) was available as an option. Torsen-based (T-1) quattro permanent four-wheel drive (4wd) was standard on manual transmissions, and a transfer box based 4wd was standard on automatic transmission variants.[1] Final drive ratio is either 4.111 or 3.889 (dependent on transmission type), and the rear axle uses a driver-selectable electro-pneumatic-mechanical switchable diff lock (parts code prefix: 017, identification codes: AAT, AET).[1]
A 206 kW (280 PS; 276 bhp) 4.2 litre all-aluminium alloy V8 engine (parts code prefix: 077, identification code: ABH) became available to European customers as an option from October 1992, only with the manual gearbox.[1]
The configuration of the 2.2 litre engine and five-speed manual transmission offered good acceleration for its day, achieving 100 kilometres per hour (62.1 mph) in just 6.2 seconds.
C4 steering, brakes, wheels & tyres
The C4 S4 came equiped with power assisted (PAS) rack and pinion steering as standard.[1] An electronically controlled variable assisted 'servotronic' version was also available.[1]
There were two different types of high performance brake systems on offer for the C4 S4.[1] From its' introduction, it had the unusual 'UFO' styled front disc brakes. These were sized at 310 millimetres (12.20 in) in diameter by 25 mm (0.984 in) thick, and were radially ventilated, but mounted the ATE single-piston sliding caliper inside the bell-shaped disc. With the introduction of the V8 engine, the S4 changed to more conventional front brakes across the range. Again radially ventilated, the front discs were now sized at 314 mm (12.36 in) by 30 mm (1.181 in), with the Lucas-Girling single pot caliper mounted in the conventional external position. The rears, again radially ventilated, were sized at 269 mm (10.59 in) by 20 mm (0.787 in), and used a Lucas-Girling single-piston sliding caliper, with integrated cable-actuated handbrake mechanism. A Bosch three-channel (four-channel sensing) Anti-lock Braking System (ABS), with mechanical load sensing valve (for the rear brakes) was also standard.
Standard roadwheels[1] were 7.5Jx16H2 ET37 six-arm 'Avus' forged alloy wheels with 225/50 R16 tyres. Three optional alloy wheel and tyre packages were available - a 7.5Jx15H2 ET40 six-spoke alloy wheel, with 215/60 R15 tyres, an 8.0Jx16H2 ET40 five double-spoke alloy, or an 8.0Jx17H2 ET40 ten-spoke alloy were also available.
B5 (Typ 8D, 1997-2001)
Audi S4 quattro (B5) | |
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![]() Audi B5 S4 sedan (US) | |
Overview | |
Also called | Typ 8D |
Body and chassis | |
Body style | 4-dr saloon/sedan[1] 5-dr Avant (estate/wagon)[1] |
Platform | Volkswagen Group B5 platform |
Related | Audi A4 |
Powertrain | |
Engine | 2.7 L 30v V6 biturbo 2xDOHC[1] |
Transmission | 6-sp manual,[1] 5-sp ZF 5HP19 tiptronic automatic[1] |
Dimensions | |
Wheelbase | 2,615 mm (103.0 in) |
Length | 4,483 mm (176.5 in) |
Width | 1997-99: 1,733 mm (68.2 in) 2000-02: 1,848 mm (72.8 in) |
Height | saloon: 1,396 mm (55.0 in) Avant: 1,418 mm (55.8 in) |
Kerb weight | 1,535 kg (3,384 lb) to 1,680 kg (3,704 lb) |
Chronology | |
Predecessor | Audi C4 S4 |
Successor | Audi B6 S4 |
The second generation S4 (Typ 8D), now correctly titled Audi S4 quattro debuted in 1997, with factory production commencing October 1997,[1] as part of the facelifted B5 platform Audi A4 line-up, although it wasn't available in North America until year 2000.
In addition to the saloon (sedan), an estate version (wagon) - the Audi S4 Avant, was introduced into the lineup from 1998. Production of the B5 S4 ceased in September 2001,[1] although it was still sold together with the next B6 platform generation through 2002 in North America.
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 Factory tuned S4 won a comparison test against several other extreme performance cars.[5]
B5 powertrain
The powertrain detail[1] of the B5 S4 features a 2.7 litre twin-turbo ('biturbo') 90° third-generation V6 engine (parts code prefix: 078, identification codes: AGB, AZB). Detail of the powerplant includes a cast iron cylinder block with two lightweight aluminium alloy cylinder heads. The valvetrain includes 30 valves (five valves per cylinder),[6][7] twin hybrid-driven (timing belt and chain) double overhead camshafts and variable valve timing for the inlet valves. The charged intake air is cooled with the aid of two side-mounted intercoolers (SMICs). It displaces 2,671 cubic centimetres (163.0 cu in), and is rated to produce a motive power output of 195 kilowatts (265 PS; 261 bhp), and generates 400 newton-metres (295 lbf⋅ft) of torque. Engine management was by way of a Bosch Motronic ME 7.1 (7.0 in North America) engine control unit (ECU), and helped it meet the EU-3D emissions standard. For a short time scale (08/98-12/98) in the North American market, the engine was slightly detuned to meet US emissions regulations, output was reduced to 186.3 kW (253 PS; 250 bhp) and 258 ft⋅lb (350 J) (identification code: APB).
As in the previous S4, a six-speed C90 manual transmission (parts code prefix:01E, identification code: DSY) gear ratios- 1st: 3.500, 2nd: 1.889, 3rd: 1.231, 4th: 0.967, 5th: 0.806, 6th: 0.684) was standard equipment, as was the Torsen T-1 quattro permanent four-wheel drive system. Final drive (parts code prefix: 01H, identification code: DQA) ratio is 4.111. A five-speed ZF 5HP19 tiptronic automatic transmission (parts code prefix:01V) became available for the first time as an option.[1]
The S4 claims acceleration from 0 to 100 kilometres per hour (62.1 mph) in 5.6 seconds, and had an electronically-limited top speed of 250 km/h (155.3 mph), making it both the quickest saloon/sedan in the Audi model line, and among the quickest saloon/sedans in the world at that time.
B5 brakes, wheels & tyres
The B5 S4 brake system[1] consisted of radially ventilated discs, 321 millimetres (12.64 in) in diameter by 30 mm (1.18 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 (with four pads per caliper), with Lucas single-piston sliding brake calipers at the rear. A Bosch ABS 5.3 four-channel Anti-lock Braking System (with Electronic Brakeforce Distribution (EBD) and Electronic Differential Lock (EDL) - and later with ESP or Electronic Stability Programme), coupled with a vacuum servo completed the system.
Standard roadwheels[1] were Audi's die-cast aluminium alloy six-arm 'Avus' 7.5Jx17H2 ET45 alloy wheels, shod with 225/45 ZR17 performance tyres.
B5 motorsport
A racing version of the car achieved great success in the SpeedVision World Challenge 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-pot fronts and 2-pot rears.
B6 (Typ 8E/8H, 2003-2004)
Audi S4 quattro (B6) | |
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![]() Audi B6 S4 Cabriolet (US) | |
Overview | |
Also called | Typ 8E (saloon & Avant), Typ 8H (Cabrio) |
Body and chassis | |
Body style | 4-dr saloon/sedan,[1] 5-dr Avant (estate/wagon),[1] 2-dr Cabriolet[1] |
Platform | Volkswagen Group B6 (PL46) platform |
Related | Audi A4 (B6) |
Powertrain | |
Engine | 4.2 L 40-valve V8 2xDOHC[1] |
Transmission | 6-sp Getrag manual,[1] 6-sp ZF 6HP19 tiptronic automatic[1] |
Dimensions | |
Wheelbase | 2,651 mm (104.4 in), Cabrio: 2,654 mm (104.5 in) |
Length | 4,575 mm (180.1 in), Cabrio: 4,573 mm (180.0 in) |
Width | 1,781 mm (70.1 in), Cabrio: 1,778 mm (70.0 in) |
Height | 1,415 mm (55.7 in), Cabrio: 1,391 mm (54.8 in) |
Kerb weight | saloon: 1,660 kg (3,660 lb), Avant: 1,720 kg (3,792 lb), Cabrio: 1,855 kg (4,090 lb) |
Chronology | |
Predecessor | Audi B5 S4 |
Successor | Audi B7 S4 |
![](https://upload.wikimedia.org/wikipedia/commons/thumb/2/20/2004_Audi_S4.jpg/200px-2004_Audi_S4.jpg)
![](https://upload.wikimedia.org/wikipedia/commons/thumb/b/b0/Audi_s4_red.jpg/200px-Audi_s4_red.jpg)
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,[1] and appeared in North America slightly later.[when?] This was based on the latest Volkswagen Group B6 (PL46) platform used by the then current Audi (B6) A4. Despite having moved to an entirely new platform, one of the S4's most publicised new features was its new internal combustion engine - a 4.2 litre V8 engine. Following its initial launch of either a four-door five-seat saloon (sedan), or a five-door five-seat Avant (estate/wagon), it 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.[8]
Official performance figures for standard discipline of sprinting from standstill to 100 kilometres per hour (62.1 mph) in the saloon with manual transmission are 5.6 seconds (Avant 5.8 s, Cabriolet 5.9 s), however, a road test conducted by the American automotive magazine Motor Trend [9] indicated that it could go from a standstill to 60 mph (96.6 km/h) in less than 5 seconds, and make it to 200 km/h (124.3 mph) in slightly over 20 seconds, although doing this led to fuel consumption dipping into single digits, considerably lower than the earlier V6 models, leading to the addition of a $1,700 gas guzzler tax (combined 20.2 miles per US gallon (11.6 L/100 km; 24.3 mpg‑imp)) for the six-speed manual sedan in the United States. Top speed is electronically limited to 250 km/h (155.3 mph).
The B6 S4 saloon and Avant variants ceased factory production in December 2004, with the Cabriolet ending twelve months later at December 2005.[1]
B6 powertrain
Replacing the 2.7 litre 'biturbo' V6 engine of the previous generation B5 S4, the new B6 S4 powertrain[1] gained an all-aluminium alloy 4.2 litre, 40 valve (five valves per cylinder) V8 engine (parts code prefix: 079.C, identification code: BBK), with twin chain-driven (at the rear of the engine) double overhead camshafts (DOHC) (two per cylinder bank), roller valve followers, and included variable inlet camshaft timing. It also utilised a strengthened alloy crankshaft bedplate for the five main bearings, and a two-part baffled oil sump, and a light-alloy variable intake manifold (VIM), containing the sequentially fired 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 rated motive power output of 253 kilowatts (344 PS; 339 bhp) at 7,000 revolutions per minute (rpm), and 410 newton-metres (302 lbf⋅ft) of torque at 3,500 rpm, making it more potent than the RS2 Avant, and nearly as powerful as the B5 RS4. Engine management was by way of a Bosch Motronic ME 7.1.1 engine control unit, utilising a Bosch 'E-Gas' drive by wire electronic throttle, and powering eight individual spark coils with longlife quad-electrode Bosch spark plugs. Ignition timing is a mapped direct ignition, with cylinder-selective knock control with the aid of four knock sensors. The exhaust system 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 transmission (parts code prefix: 0A3, identification codes: FVD, HEP) (gear ratios - 1st: 3.667, 2nd: 2.050, 3rd: 1.462, 4th: 1.133, 5th: 0.919, 6th: 0.778),[1] with a 240 millimetre single plate dry clutch, and Torsen T-2 quattro permanent four-wheel drive system. Final drive (parts code prefix: 01R, identification code: EXZ) ratios are 3.889,[1] giving a top gear road speed to engine revs ratio of 24.4 mph per 1000 rpm. From July 2003,[1] the ZF 6HP19 tiptronic automatic transmission (parts code prefix: 09L, identification codes: GUR, HHU) (ratios - 1st: 4.171, 2nd: 2.340, 3rd: 1.521, 4th: 1.143, 5th: 0.867, 6th: 0.691, with a final drive (identification code: GDF) ratio of 3.539) was included as an option.
An unusual sight in the engine compartment was the addition of water cooling for the 190 amp alternator,[1] along with two additional thermostatically-controlled side-mounted radiators.[1]
B6 steering, brakes, wheels & tyres
The B6 S4 came equiped with electronically controlled variable assisted 'servotronic' power assisted (PAS) rack and pinion steering as standard.[1]
B6 S4 brakes[1] consisted of radially ventilated disc brakes front and rear. The front discs are sized at 345 millimetres (13.58 in) in diameter by 30 mm (1.181 in) thick, and are clamped by Continental Teves-ATE FNRG-60 single-piston sliding brake calipers. The rears are 300 mm (11.81 in) by 22 mm (0.866 in), and again use single-piston sliding calipers, with an integrated cable-operated hand brake mechanism. A Bosch ESP 5.7 Electronic Stability Programme 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) - also known as traction control system), coupled with a dual-rate tandem vacuum servo provided the brake actuation.
Standard alloy wheels[1] were 'Avus-III' die-cast aluminium alloy, 8.0Jx18H2 ET45 in size, and shod with 235/40 ZR18 95Y eXtraLoad high performance tyres, being either Continental SportContact2 or Michelin PilotSport PS2.
B6 body & interior
Discrete lower door trims, along with the now trademark Audi 'S' model vertical-emphasis line grille, and solid aluminium (later replaced with mock aluminium plastic) exterior door mirrors, and S4 badging front and rear are all that visually distinguish the S4 from its related A4 brethren. Interior, front and Recaro seats (fronts fully electric), and carbon fibre trims, complete with S4 logos in the instrument panel complete the detail.
B7 (Typ 8E/8H, 2005-2008)
Audi S4 quattro (B7) | |
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![]() Audi B7 S4 Avant in Sprint Blue with standard Avus-III alloy wheels | |
Overview | |
Also called | Typ 8E (saloon & Avant), Typ 8H (Cabrio) |
Body and chassis | |
Body style | 4-dr saloon/sedan,[1] 5-dr Avant (estate/wagon),[1] 2-dr Cabriolet[1] |
Platform | Volkswagen Group B7 (PL46) platform |
Related | Audi A4 (B7) |
Powertrain | |
Engine | 4.2 L 40-valve V8[1] |
Transmission | 6-sp manual,[1] 6-sp tiptronic automatic[1] |
Dimensions | |
Wheelbase | 2,648 mm (104.3 in) Cabrio: 2,654 mm (104.5 in) |
Length | 4,586 mm (180.6 in) Cabrio: 4,572 mm (180.0 in) |
Width | 1,781 mm (70.1 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 |
![](https://upload.wikimedia.org/wikipedia/commons/thumb/e/e4/Audi_S4_Cabriolet.jpg/200px-Audi_S4_Cabriolet.jpg)
The Audi B7 platform Audi S4 quattro, based on the B7 Audi A4, debuted in late 2005. Although Audi classifies it as a new car, the differences between it and the outgoing B6 S4 casually appear to be primarily cosmetic, and is still classified by the internal designation: Typ 8E (although with revised sub-designations - saloon: 8EC, Avant: 8ED, and Cabriolet: 8HE).[1] It has the same 4.2 litre V8 engine (identification code: BBK) as the B6 S4, producing 253 kilowatts (344 PS; 339 bhp) at 7,000 revolutions per minute (rpm), and 410 newton-metres (302 lbf⋅ft) torque at 3,500 rpm.
There are a few mechanical changes, such as revised springs and dampers and, from model year 2007, an updated Torsen T-3 centre differential, featuring a default asymmetric 40:60 front-rear torque split on manual transmission quattro models, along with the later Bosch ESP 8.0 Electronic Stability Programme[1] and gloss black painted brake calipers.[1] The 'Avus-III' roadwheels now became an option, and were replaced by a standard offering 8.0Jx18 inch 'S-design' 7-spoke forged alloy wheel.[1]
Bose sound system is now standard, whereas it was optional on the B6 S4, and an enhanced optional DVD-ROM-based RNS-E satellite navigation system replaces the previous CD-ROM-based (RNS-D) option.
The new trapezoidal single-frame grille, Bi-Xenon HID headlamps, L-shaped tail-lamps, quad exhaust tail pipes, and discrete V8 badging below the side repeater indicators help distinguish the B7 from the previous B6 model.
Audi S4 25quattro
![](https://upload.wikimedia.org/wikipedia/commons/thumb/7/73/2006_Audi_S4_25quattro.jpg/200px-2006_Audi_S4_25quattro.jpg)
In June 2005,[1] 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. Available only in the US, in Avus Silver, the exterior has unique front and rear bumpers, a carbon fibre boot lip spoiler and lower front splitter. 15-spoke DTM alloys, along with optional dealer-fitted Audi rings decals for the front doors complete the exterior makeover. Black and grey contrasting interior leathers, along with "quattro" embossed into the Recaro seats, together with an individually numbered exclusive quattro gear shift knob for the manual-only gearbox define the interior changes.
On the mechanical side, the S4 25quattro was the second Audi, after the B7 RS4 to be fitted with the latest Torsen T-3 asymmetric centre differential for its quattro permanent four-wheel drive system. Under normal grip conditions, this is set with a default rearwards torque distribution bias of 40:60 front to rear, and a maximum of 100% torque can automatically be apportioned to the rear axle (and up to 80% to the front) as conditions warrant. The final drive ratios are 3.889.
B8 (Typ 8K, 2009-)
Audi S4 quattro (B8) | |
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![]() Audi B8 S4 saloon (US) | |
Overview | |
Also called | Typ 8K |
Body and chassis | |
Body style | 4-dr saloon/sedan,[1] 5-dr Avant (estate/wagon)[1] |
Platform | Volkswagen Group MLB/MLP platform |
Related | Audi A4 (B8) |
Powertrain | |
Engine | 3.0 L V6 TFSI[1] |
Transmission | 6-sp manual,[1] 7-sp dual clutch 'S tronic'[1] |
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), Avant: 1,415 mm (55.7 in) |
Kerb weight | 1,650 kg (3,638 lb) to 1,735 kg (3,825 lb) |
Chronology | |
Predecessor | Audi B7 S4 |
From November 2008, the latest generation of the Audi S4 quattro[10] (Typ 8K) entered factory production.[1] It is based on the current Audi B8 A4,[11] built on the Volkswagen Group MLB/MLP platform. Unlike the previous B6 and B7 models, the new B8 version will only be available as a four-door five-seat saloon (sedan), or a five-door five-seat Avant (estate/wagon). The sport-performance two-door four-seat Cabriolet (convertible) mantle is now taken by the current Audi S5.
Compared to the previous B6/B7 S4, this latest B8 S4 utilises a smaller displacement internal combustion engine, but with the addition of forced induction. It is powered by a 3.0 litre TFSI supercharged V6 engine (parts code prefix: ???, identification code: CAK),[1] and like the rest of the B8 model range, now with Fuel Stratified Injection (FSI). This petrol engine, based on the unit from the facelifted Audi A6, displaces 2,995 cubic centimetres (182.8 cu in), and it produces a rated motive power output of 245 kilowatts (333 PS; 329 bhp). Torque is rated at 440 newton-metres (325 lbf⋅ft) from 2,900 to 5,300 rpm. This engine is mated to either a six-speed manual transmission (identification code: KMR)[1] or a seven-speed 'S tronic' twin-clutch gearbox[12] (identification code: LHK),[1] the latter with steering wheel mounted paddle-shifters for tiptronic control. The 'Audi quattro Sports differential' fitted in the rear axle final drive unit is available as an option.
Fuel consumption is rated at a combined 24.2 miles per US gallon (9.7 L/100 km; 29.1 mpg‑imp)[13]. Therefore, the B8 S4, unlike the V8-powered B6/7 models, avoids the US gas guzzler tax.
Acceleration from standstill to 100 kilometres per hour (62.1 mph) takes 5.1 seconds[14] for the saloon with manual gearbox, the Avant one tenth of a second slower at 5.2 seconds. The same dash to 100 km/h in the saloon with S tronic takes 5.3 seconds, and the Avant at 5.4 seconds. The top speed is electronically limited to 250 km/h (155.3 mph). With figures like these, the B8 S4 accelerates more quickly than any of its predecessors.
A new designed roadwheel is included on the B8 S4, an 8.5Jx18" '5-double-spoke S' design alloy wheel with 245/40 ZR18 high performance tyres. Optional 19 inch wheel and tyre packages are also available, sized at 8.5Jx19" alloy wheels with 255/35 ZR19 tyres. LED tail lights are standard fitment, along with Audi's trademark LED daytime running lights at the front.
See also
References
- ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa ab ac ad 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 br ETKA official factory data
- ^ AudiWorld.com North American S4 Model Guide - historical S4 specifications, prices, and options
- ^ Stephen L. Thompson. "Preview: Audi S4". Car and Driver (March 1992): 79–80.
- ^ rodrigo gato. "Magnum Force". Car and Driver (April 1992): 47–56.
- ^ Sport Compact Car magazine 2007 Ultimate Street Car Challenge "The Audi S4 ... showed its capability with consistently strong finishes in the acceleration, dyno, braking and driveability tests"
- ^ Audi Self-Study Programme SSP198 - The 2.7-litre V6 biturbo
- ^ Audi.com - Glossary five valves per cylinder
- ^ Audi Technical Data sheets - 2003 S4 quattro - saloon, Avant, and Cabriolet
- ^ Sports Car Comparison: 2004 Audi S4 vs. 2003 Mercedes-Benz C32 AMG [1]
- ^ Audi.co.uk Audi S4
- ^ AudiWorld.com News Performance Preview: exclusive look at the B8 S4 18 November 2007
- ^ PaulTan.org blog B8 Audi S4 Sedan and Avant unveiled!
- ^ Audi Germany [2]
- ^ Audi Germany [3]
External links
- Audi S4 0-60 Times
- Audi.com international corporate portal
- Audi UK - S and RS models
- Audi USA - S4