Audi TT

The 1.8 L turbocharged inline-4 engine

Mechanically, the TT shares an identical powertrain layout with its related Volkswagen Group-mates. The TT uses a transversely mounted internal combustion engine, with either front-wheel drive or 'quattro four-wheel drive' available as an option. It was first available with a 1.8-litre inline four-cylinder 20-valve turbocharged engine in two states of DIN-rated power outputs; 180 PS (132 kW; 178 hp) and 225 PS (165 kW; 222 hp). The engines share the same fundamental design, but the 225 PS version features a larger K04 turbocharger (180 PS version came with a smaller K03), an additional intercooler on the left side (complementing the existing right-side intercooler), larger 20mm wrist-pins, a dual tailpipe exhaust, intake manifold with inlet on driver's side, and a few other internals – designed to accommodate the increase in turbo boost, from roughly 10 pounds per square inch (0.7 bar) peak, to 15 pounds per square inch (1.0 bar). Haldex Traction enabled four-wheel drive, branded "Quattro", was optional on the 180 engine and standard on the more powerful 225 version.

3.2 L VR6 engine

The original four-cylinder engine range was complemented with a 3,189 cc (3.2 L; 194.6 cu in) VR6 engine rated at 250 PS (247 bhp; 184 kW) and 320 N⋅m (236 lb⋅ft) of torque in early 2003, which came as standard with the quattro four-wheel-drive system. In July 2003, a new six-speed dual clutch transmission – dubbed the Direct-Shift Gearbox (DSG), which improves acceleration through much-reduced shift times, was offered, along with a stiffer suspension.

According to Audi Head of Design Marc Lichte, the curved outline and rounded bodywork of the Mk1 TT's design was inspired by Bauhaus.[15] This simplified curved shape was unusual at the time. The drag coefficient of the original TT is 0.35,[16] which is similar to its competitors such as the BMW Z4 and the Mazda MX-5.

However, the TT was involved in a number of high-speed accidents which were attributed to aerodynamic instability at high speeds. To solve these issues, Audi added modified control arms and firmer shock absorbers on both the front and rear suspension as well as a rear spoiler.[14]

In 2005, Audi released the Coupé-only limited edition to 1,165 pieces. 800 with steering wheel on the right side/ 365 with steering wheel on the left side. (900 sold in the UK, not the 1,000 originally planned) Audi TT quattro Sport[17] (known as the Audi TT Club Sport in Europe) or TT QS. Built by AUDI AG's high-performance specialist subsidiary quattro GmbH, it had increased power from its 1.8-litre turbocharged engine – rising to 240 PS (177 kW; 237 hp) and 320 N⋅m (236 lbf⋅ft) of torque – and a reduction in weight of 75 kg (165 lb) to 1,390 kg (3,064 lb),[17] which allowed for a 0–62 mph (0–100 km/h) time of 5.9 seconds, and an electronically limited top speed of 155 mph (249 km/h).[17]

This weight reduction was achieved by removing the spare wheel, rear harmonic damper, rear parcel shelf and rear seats, and the standard fitment air conditioning.[17] The main battery was also relocated to the rear of the vehicle in order to maintain weight distribution as much as possible. Lightweight fixed-back Recaro bucket seats graced the interior.[17] Distinguishable from other TT Coupés by its two-tone paint scheme (Phantom Black pearl painted roof, pillars and mirror housings, in combination with either Avus Silver, Phantom Black, Mauritius Blue or Misano Red body colour)[17] and unique 18" 15-spoke cast aluminium alloy wheels, plus the same body kit as fitted to the TT 3.2 V6, the TT quattro Sport also featured black exhaust tailpipes and uprated suspension settings and new wheels, 1⁄2 in (13 mm) wider at the rear for improved handling. The brochure stated V6-spec brakes were to be fitted, however models delivered in the UK came with the standard 225 spec brake callipers which were red-painted.

The 8N powertrain options consist of the following engines and drivelines:

There were two United States class action lawsuits affecting specific model years of the first generation TT.

On 22 June 2007, Pearson, Simon, Soter, Warshaw & Penny, LLP and the Law Office of Robert L. Starr filed a class action lawsuit against Volkswagen Group of America, alleging that the timing belts for model year 1999–2003 Audi and Volkswagen vehicles equipped with a 1.8-litre turbocharged engine fail prematurely.[18] The vehicles included are the Audi TT, Audi A4 and Volkswagen Passat. The complaint alleged that the timing belts failed prior to the service interval, as stated in the owner's manual. The parties have reached a class-wide settlement, and preliminary approval of the settlement was granted by the court on 19 May 2008.

On 22 May 2008, the U.S. District Court, Northern District of California, entered an order preliminarily approving a nationwide settlement of a class action lawsuit brought by Green Welling LLP, on behalf of all current and prior owners and lessees of 2000–2004, and 2005 model year Audi TTs. The lawsuit and settlement related to allegedly defective instrument clusters, and Audi TT owners are entitled to submit claims for repairs, replacement and/or cash reimbursement for out-of-pocket expenses, and all TT owners covered by the suit will receive a two-year extension of their existing four-year warranty (limited to the instrument cluster).[19]

For the 30th anniversary Quattro gmbH unveiled an Imola Yellow TT that sported a 2.7 L Bi-Turbo V6 engine from a B5 Audi RS4 that produced 280 kW (381 PS; 375 hp) and 440 N⋅m (325 lb⋅ft) at 2,500 rpm[20] which was manufactured in 2001. This was accomplished by using a B5 RS4 donor car, which included engine, transmission, rear differential, axles, brakes, and wheels from a B5 Avant. Using the RS4 drivetrain, Audi had the ability to utilize a Torsen based 6-speed Quattro manual transmission in a car that is normally using a transverse engine layout and Haldex based all wheel drive system.

The powertrain options initially only included petrol engines, which consist of either one of two inline four-cylinder engines – the all-new 1.8-litre EA888 Turbocharged Fuel Stratified Injection (TFSI) (available initially only in Germany, later elsewhere from mid 2009),[25] or the more common and established EA113-variant 2.0-litre TFSI. The Fuel Stratified Injection (FSI) technology was derived from the Audi Le Mans endurance race cars, and offers improved fuel efficiency as well as an increased power output and cleaner emissions. The 3.2-litre 'V6' badged VR6 engine is carried over from the previous generation, and this engine was also available in the Canadian model.[26] 2.0 TFSI quattro models, with the latest EA888 engine, became available in 2009 model year.[27]

A six-speed manual transmission is standard, with the six-speed Direct-Shift Gearbox (now called "S-TRONIC" on all Audi models) as an option for all engines. Quattro on-demand four-wheel drive, again using the Haldex Traction clutch is available – standard on V6 models, but not available on the 1.8 TFSI.

Like all its PQ35 platform-mates, the new 8J TT now has a multi-link fully independent rear suspension to complement the front independent suspension. The entire suspension system can be enhanced with Audi's new active suspension, "Audi Magnetic Ride", available as an option. This is based on BWI Group's MagneRide, which uses magneto rheological dampers (this means that an electronic control unit for the suspension will automatically adjust its damping properties depending on the current road conditions and driving manner).

The new TT also features a revised rear spoiler which preserves the clean aesthetics of the TT when not raised. The spoiler automatically deploys at speeds greater than 78 mph (125 km/h) to increase down-force, and retracts again below 50 mph (80 km/h). The spoiler can also be manually controlled by the driver via a switch on the lower centre console. Manual operation by the switch reverts to automatic operation (i.e.: manual mode is cancelled) if the vehicle speed rises above the stated limit.[23]

Launched at the 2008 Geneva Motor Show,[28] Audi offered the first diesel engined version of the Audi TT in the European market, the Audi TT 2.0 TDI quattro.[28][29][30] As its name indicates, it is only available with four-wheel-drive, and is also available in Coupé and Roadster versions.[29] Power comes from the new 2.0-litre Turbocharged Direct Injection (TDI) engine, now with 16 valves, double overhead camshaft (DOHC), 1,800-bar (26,110 psi) common rail fuel delivery and eight-hole piezo fuel injectors,[28][29] which produces a DIN-rated output of 125 kW (170 PS; 168 bhp) at 4,200 rpm and torque of 350 N⋅m (258 lbf⋅ft) at 1,750 to 2,500 rpm.[28][29] It includes a six-speed manual transmission.[29]

Acceleration from standstill to 100 km/h (62.1 mph) on the Coupé is achieved in 7.5 seconds, and it will go on to reach a top speed of 226 km/h (140.4 mph).[29] The slightly less aerodynamically efficient Roadster reaches 100 km/h (62 mph) in 7.7 seconds, with a top speed of 223 km/h (138.6 mph).[29]

Audi claim average fuel consumption for the Coupé variant with this 2.0 TDI engine is 5.3 litres per 100 kilometres (53.3 mpg_‑imp; 44.4 mpg_‑US), which achieves a CO₂ emissions rating of 139 gram/km.[29][30] The Roadster TDI achieves an average 5.5 litres per 100 kilometres (51.4 mpg_‑imp; 42.8 mpg_‑US) and CO₂ of 144 gram/km.[29]

As an additional package a standard Audi TT can be bought from factory with a special body kit upgrade to make it look like the Audi TT-RS version. The upgrade includes a fixed rear spoiler, and Alcantara/leather sports seats (Silk Nappa, Fine Nappa leather optional).

TTS Coupé (Australia; facelift)

TTS Coupé (Australia; facelift)

At the 2008 North American International Auto Show (NAIAS) in Detroit, Audi released the first Audi "S" model of the TT range – the Audi TTS quattro,[31] with a heavily revised 2.0 TFSI engine.[31] The cylinder block, cylinder head and the fuel injectors have all been modified from the base 2.0 TFSI engine (ID: CDL). Together with other modifications, this engine produces a DIN-rated power output of 200 kW (272 PS; 268 hp),[31] and generates a torque of 350 N⋅m (258 lbf⋅ft) from 2,500 to 5,000 rpm.[31][32]

The 2.0 L TFSI Inline-four engine

It was available with a choice of either a six-speed close-ratio manual transmission,[31] or a six-speed 'S tronic' transmission.[31] In the United States, the S tronic gearbox was the only available transmission. Like all Audi "S" models, it was only available with four-wheel drive as standard.

The suspension was lowered by 10 millimetres (0.4 in) over the standard models, and includes "Audi Magnetic Ride" as standard[31][33] and a new two-stage sports-biased Electronic Stability Programme (ESP).[34] Radially ventilated front disc brakes are clamped by a single-piston gloss black caliper emblazoned with a bold TTS logo, and a lap timer is prominent in the centre of the instrument cluster.[35] 9Jx18" '5-parallel-spoke' design alloy wheels are standard,[31] with 245/40 ZR18 high-performance tyres. 19" '5-spoke star' wheels and tyres are optional.[31][36] The exterior has some changes over the standard model – with a TTS body styling: with redesigned front, with larger air intakes, redesigned rear bumper, side sill extensions, and four exhaust tailpipes.[31]

Official performance figures include a 0–62 mph (0–100 km/h) acceleration time of 5.2 seconds, with the Roadster four-tenths slower at 5.6 seconds.[31] Top speed is electronically limited to 155 mph (249 km/h).[31]

Audi UK offered eight TTS cars for official use by the race organisers at the 2008 Isle of Man TT motorcycle races.[12][37]

The car went on sale in the US at November 2008.[38]

In 2014, at the International Motor Show in Geneva, Audi unveiled the new TTS model for the 2016 model year, alongside the standard 2016 Audi TT model. Both models were planned to go on sale in the beginning of 2015.[39]

Audi displayed a new show car variant of the second generation Audi TT – the Audi TT Clubsport quattro, at the 2008 Wörthersee Tour at Pörtschach am Wörthersee in Austria.[40] Shown only in an open-topped "speedster" variant, its 2.0 TFSI engine has been tuned to give 221 kW (300 PS; 296 bhp).[40] The soft-top on the standard TT Roadster has been deleted, and replaced with two "humps", along with two substantial roll bars.[40] LED daytime running lamps, an aggressive body kit with large frontal air intakes, black-painted "single frame grille" and a lower spoiler lip complete the new look from the front.[40] The axle track has been widened by 66 millimetres (2.6 in), with bolder and wider wheel arch extensions, polished 19-inch alloys, wider side sills and 255-section tyres are the highlight of the side profile.[40] At the rear, twin polished stainless steel oval tail pipes exit aside a new rear diffuser.[40]

Racing bucket seats, along with lightweight aluminium detail complete the interior look,[40] and a six-speed S tronic dual-clutch transmission with quattro four-wheel drive and TTS spec brakes (340 mm (13.4 in) up front, and 310 mm (12.2 in) at the rear) complete the mechanicals.[40]

Whilst the TT Clubsport quattro is primarily a "show car", Audi has not ruled out the possibility of small-scale production.[40]

Audi TT RS

Audi TT RS

The 2.5 L TFSI Inline-five engine

Interior (Coupé)

With its world debut at the 2009 Geneva Auto Show,[41][42] and developed by Audi's high-performance subsidiary quattro GmbH at Neckarsulm, Germany,[43] Audi released the first ever compact sports car Audi "RS" variant – the Audi TT RS, which was available from 2009 in Coupé and Roadster variants. The TT RS featured an all-new 2.5-litre Inline-5 turbocharged petrol engine.[42] This new 183 kg (403 lb) engine produces a DIN-rated power output of 250 kW (340 PS; 335 bhp) from 5,400 to 6,700 rpm, and torque of 450 N⋅m (332 lbf⋅ft) at 1,600–5,300 rpm.[42][44]

Ever since the original Audi "RS" model – the Audi RS2 Avant – all Audi "RS" models were assembled at the quattro GmbH factory in Neckarsulm. The TT RS is the first Audi RS vehicle that didn't have any of its assembly performed in Neckarsulm but was completely assembled in the Audi factory in Győr, Hungary,[24] alongside the base Audi TT.

The TT RS has a new short-shift close-ratio six-speed manual transmission,[42] and like all "RS" models, is only available with four-wheel-drive, with the TT RS using a specially adapted version of the latest generation multi-plate clutch from Haldex Traction.[42][45] Additions to the quattro system include a constant velocity joint before the cardan propeller shaft, and a compact rear-axle differential – upgraded to cope with the increased torque from the five-cylinder turbo engine.

Like the TTS, the TT RS has a 10 millimetres (0.4 in) lower ride height,[42] optional "Audi Magnetic Ride",[42] and rides on standard 18-inch wheels with 245/45 ZR18 tyres (optional 19" or 20" wheels are also available).[42] The brakes are upgraded to include two-piece cross-drilled and radially vented front discs, sized at 370 mm (14.6 in) in diameter.[42] The front discs are clamped by gloss black painted four-piston calipers, adorned with the RS logo.[42] Rear ventilated discs are sized at 310 mm (12.2 in) in diameter.[42]

It includes a fixed rear spoiler (retractable optional),[42] and has black interior with heated Alcantara/leather sports seats (Silk Nappa, Fine Nappa leather optional). The Recaro "RS bucket" seats, first seen in the Audi B7 RS4 are also available as an option. Also carried over from the B7 RS4 is the "Sport" button, which sharpens the throttle response and deepens the exhaust note, and a three-stage user-selectable Electronic Stability Programme (ESP).[42]

Official performance figures indicate the TT RS Coupé will accelerate from a standstill to 100 km/h (62.1 mph) in 4.5 seconds (4.7 seconds for the Roadster), with an electronically limited top speed of 250 km/h (155 mph).[42] There is a factory option to de-restrict the top speed to 280 km/h (174.0 mph).[42] The Coupé has a kerb weight of 1,450 kg (3,197 lb),[42] and the Roadster weighs in at 1,510 kg (3,329 lb).

As of 2010 the TT-RS is available with the 7-speed DSG automatic transmission capable of handling the torque delivered by the engine. The 6-speed gearbox used in the TT-S cannot cope with 450 N⋅m (332 lb⋅ft) of torque, which is why the TT-RS initially was offered only with a manual transmission.

The car went on sale in March 2009, with delivery beginning in summer.[46]

In 2010, the TT-RS was confirmed for the US market. The decision was influenced by an internet petition to bring the TT-RS stateside, which succeeded with over 11,000 signatures.[47] The TT-RS arrived in Q3 2011 as a 2012 model.

In 2012, the TT RS plus was launched. It featured the uprated version of the TT RS' engine that had originally been developed for the RS Q3 concept car; this version of the engine produces 355 hp (265 kW; 360 PS) at 5500 rpm, and 343 lb⋅ft (465 N⋅m) of torque at 1650 rpm.[48] As a result of this power increase, Audi claimed that the 0-62 mph (100 km/h) time had decreased to 4.3 seconds for the manual version, and 4.1 seconds for the S-tronic version.[48] In addition to this, Audi raised the top speed limiter, with the TT RS plus being restricted to 174 mph (280 km/h).[48]

The 8J powertrain options consist of the following engines and drivelines:[49][50]

Audi was reported to stop offering 3.2-litre V6 (VR6) models in North America from 2010 model year.[51]

The second generation TT has been honoured with many awards, including the inaugural Drive Car of the Year, Top Gear Coupé of the Year 2006, Fifth Gear Car of the Year 2006, Autobild Most Beautiful Car, and World Design Car of the Year 2007, as well as being a finalist for World Car of the Year. In addition, an HPA-prepared version of the car was the winner of the SEMA Gran Turismo Award in 2007. The Audi TT has been the What Car? "best Coupe of the Year" for six consecutive years since 2007.

A 2019 iSeeCars study named the TT as the longest-lasting sports car most likely to exceed 150,000 miles.[52]

In 2016, the MQB-based Audi TT RS coupé and roadster were announced with the five-cylinder 2.5 litre TFSI engine now producing 294 kW (400 PS; 394 hp) and 480 N⋅m (354 lb⋅ft) of torque between 1,700 and 5,850 rpm.[59] Audi's all-wheel drive quattro system is the standard layout and the only transmission option is the 7-speed S tronic automatic transmission.[60]

• 
  Audi TT RS (pre-facelift)
• 
  Audi TT RS Roadster (pre-facelift)
• 
  Audi TT RS with Audi Sport Performance Parts
• 
  Audi TT RS (facelift)
• 
  Audi TT RS (facelift)

Audi discontinued the TT RS in the United States after the 2022 model year, so they released the TT RS Heritage Edition, a special edition available in five colors and produced in just 50 units. Ten of each color will be made, each color representing a Ur-Quattro rally champion:[61]

• Alpine white with ocean blue leather and diamond silver stitch
• Helios blue metallic diamond silver leather and ocean blue stitch
• Stone gray metallic with crimson red leather and jet gray stitch
• Tizian red metallic with Havanna brown leather and jet gray stitch
• Malachite green metallic with cognac brown leather and black stitch

Audi Sport Performance Parts were available from 2018 to 2020 from Audi Dealerships in Europe. These parts were designed to improve dynamic handling for the Audi R8 and the Audi TT models. The retrofit range were available as add-on features for new car buyers who ordered their cars as a new car customer build. Only 15 fully built example cars were made complete with all the features from the Audi Sport Factory which were distributed around the world for the purpose of International car shows. The 15 Factory built TT RS Audi Sport Performance parts edition cars had their own build type and known as ultra rare around the world. 13 are known to be in Europe (LHD) and 2 in Australia (RHD).

In October 2022, Audi launched the TT RS Coupé Iconic Edition, available only in Europe and produced 100 cars (of which only 11 are right-hand drive).[62][63]

In 2023, Audi unveiled the Final Edition of the TT, coinciding with the discontinuation of the TT due to declining sales of the two-door coupé segment. The Final Edition TTs feature black exterior accents consisting of the tailpipes, badges and rings, door mirrors, and fixed spoiler. The roadster is equipped with black roll bars and a black wind diffuser, while the coupé receives privacy glass. The TT Final Edition receives 20-inch, Y-style five spoke matte grey finished wheels with red brake calipers, while the TT S Final Edition is fitted with seven spoke black alloy wheels of Audi Sport. Both body styles are available in either Chronos Grey Metallic, Glacier White, or Tango Red body colors.

On the interior, the Final Edition is equipped with the extended leather package, which adds the material to the center console trim, armrests, and door pull handles. A red stitched Alcantara steering wheel is fitted, with a 12 o'clock marker unique to the Final Edition. The air vents, armrests, and center console of the coupe are adorned with Tango Red accents. The Alcantara-trimmed seats feature red stitching, and the floor mats receive red piping as well. The Final Edition is exclusive to the United Kingdom, with Audi confirming that it will not be available in North America.[64]