Audi S4: Қарқынды тұрпат және тарихы

The Audi S4 is the high performance variant of Audi's compact executive car A4. The original Audi S4, built from 1991 until 1994, was a performance oriented version of Audi's 100 saloon/sedan. All subsequent S4s since 1997 have been based on the Audi A4; and as the A4 has evolved from one generation to the next, so has the S4. Like its regular A4 counterpart, all S4 variants have had longitudinally oriented, front mounted engines. 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 like all Audi "S" cars, are only available as standard with Audi's quattro all wheel drive (AWD) system, using a Torsen based centre differential system. A more powerful internal combustion engine, larger upgraded brakes, firmer suspension, larger wheels, and distinctive sheetmetal, styling clues and badging have always been amongst the many upgrades the S4 receives over its mainstream 100 and A4 siblings. In markets where the even higher performance Audi RS 4 is not offered, the S4 is the top of the line trim of the A4 family. A single turbocharged 2.2 litre inline five cylinder powered the original C4 version, and a 2.7 litre twin turbocharged V6 engine was found in the B5 generation. The B6 and B7 versions shared a common 4.2 litre V8 engine, the first time that a V8 engine was placed in a compact executive car, placing it in direct competition with the BMW M3 (3.2 L inline 6) and Mercedes Benz C32 AMG (3.2 litre supercharged V6). The B8 generation uses a supercharged 3.0 litre V6 TFSI engine and competed with the BMW 335i, BMW 335i/340i xDrive, and Mercedes Benz C350. All versions of the S4 have been manufactured at Audi's plant in Ingolstadt, Germany; they are, or have been available as a four door five seat saloon and a five door five seat Avant (Audi's name for an estate car/station wagon) body styles since the model's inception in 1991. A two door four seat Cabriolet (convertible) S4 variant was introduced as part of the B6 and B7 generation A4 lineups. The B8 Cabriolet has now been built off the A5 coupe body style and the "S" variant is marketed under the Audi S5 nameplate.

In standard form, the powertrain detail of the C4 based S4 was available with only one engine, a single turbocharged and intercooled version of Audi's 2.2 litre 20 valve inline five cylinder engine This displaced and was equipped with an advanced Bosch Motronic electronic engine control unit (ECU).

The powertrain details twin hybrid driven (timing belt and roller chain) 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). It displaces , and is rated to produce a motive power output of at 5,800 rpm, and generates of torque at 1,850 rpm. Engine management was by way of a Bosch Motronic ME 7.1 (7.0 in North America) electronic engine control unit (ECU), and helped it meet the European EU 3D emissions standard. In all US market cars, the engine was detuned to meet US emissions regulations; output was reduced to and (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 2 quattro permanent all 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. Official performance figures for standard discipline of sprinting from standstill to 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 indicated that it could go from a standstill to in less than 5 seconds, and make it to 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 ) for the six speed manual sedan in the United States. Top speed is electronically limited to
The B6 S4 saloon and Avant variants ceased factory production in December 2004, with the Cabriolet ending twelve months later at December 2005. (Typ 8K) entered factory production. built on the Volkswagen Group MLB/MLP platform. Unlike the previous B6 and B7 models, the new B8 version was only 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 Audi S5 Cabriolet and new Coupe. Unlike previous generations of the S4, only the sedan was imported to the United States and Canada. Compared to the previous B6/B7 S4 which used a 4.2 litre V8 engine, the B8 S4 uses a smaller displacement 3.0 litre TFSI V6 engine, but now with the addition of forced induction via an Eaton mechanical supercharger. The 3.2L V6 engine is no longer offered in the A4 lineup from the 2011 model year onwards, so the recently introduced B8 S4 is now priced 9% lower than its V8 predecessors, and slots directly above the 4 cylinder 2.0T base model. The S4 now compares more closely with the BMW 335i. Previously unavailable enthusiast driver aids were now optional, such as Audi's Sport Rear Differential, active steering and adaptive damping suspension (part 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 balance and dynamics of the S4 over previous models. A new designed wheel was 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 were also available, sized at 8.5Jx19" alloy wheels with 255/35 ZR19 tyres. LED tail lights were standard fitment, along with Audi's now trademark LED daytime running lights at the front. The S4 along with the other B8 models received a facelift in early 2012 for the European market and early 2013 for the Australasian market. 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.

At the heart of the B8 S4 powertrain is an all new, all aluminium alloy 3.0 litre TFSI Supercharged (TFSI) V6 engine (parts code prefix: 06E, identification code: CAKA), This new supercharger features twin four lobe rotors, which are axially twisted 160 degrees. It is mounted on top of the engine, within the 'Vee', pumping air directly into the inlet manifold, and incorporates two separate water cooled intercoolers. This new design 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 code: KMR) dual clutch transmission (identification code: LHK), showed the sprint from 0 to in 4.5 seconds for the 6 speed manual transmission. With figures like these, the B8 S4 accelerates more quickly than its V8 engined predecessors. and 5.1 seconds with the S tronic. Fuel consumption is rated at a combined Therefore, the B8 S4, unlike the V8 powered B6/7 models, avoids the US gas guzzler tax. The B8 S4's 3.0 TFSI engine also gets only 1 m. p. g. less than the base 2.0 TFSI engine. 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 as supercharging or turbocharging.

The current generation S4 is powered by a 3.0 L V6 with petrol direct injection and a single twin scroll turbo powering the EA839 engine with and The engine uses a hot inside V layout, which places the cylinder head exhaust ports, exhaust manifolds, and turbocharger inside the V of the engine; this is a similar arrangement to the twin turbo V8 engines used in Audi's C7/C8 RS6 and RS7 (including C7 S6/S7). As a result of the powertrain upgrades in the new S4, it now can accelerate from 0 to in 4.2 seconds. It is electronically limited to a top speed of
In European markets, the facelifted B9 S4 launched in 2019 is now powered by a 3.0 litre turbocharged diesel V6 with and , mated to a ZF 8 speed torque converter automatic gearbox and all wheel drive. For outside of European markets, however, it still retains the 3.0 litre petrol turbo V6.