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Audi A6

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Audi A6
2005-2008 Audi A6 3.2 sedan (US)
Manufacturer Audi
Parent company Volkswagen Group
Production 1994-present
Assembly Neckarsulm, Germany
Predecessor Audi 100
Class Executive car
Body style(s) 4-door saloon,
5-door Avant (estate)
Layout Front engine,
front-wheel drive / quattro permanent four-wheel drive
Platform Volkswagen Group C platform series

The Audi A6 is an executive luxury car produced by the German automaker Audi. It is available in saloon and estate (Avant) body styles. The second and third generation A6 were also used as the basis for the Audi allroad quattro and A6 allroad quattro models respectively.

Competitors to the A6 include the Lexus GS, BMW 5 Series, Mercedes-Benz E-Class, and Cadillac STS




C4 (1994-1997)

Audi A6 (C4)
Audi A6 (C4)
Production 1994-1997
Platform Volkswagen Group C4 platform
Engine(s) 1.8L Turbo I4
2.4L V6
2.8L V6
1.9L TDI I4, 2.5L TDI I5
Transmission(s) 5-speed manual
6-speed manual
4-speed automatic
Wheelbase 2760 mm (108.7 in)
Length 4796 mm (188.8 in)
Width 1810 mm (71.3 in)
Height 1452 mm (57.2 in)
Avant: 1479 mm (58.2 in)
Fuel capacity 80 L (17.6 imp gal; 21.1 US gal)
Related Audi S6
Audi A6 Avant C4 (US)

Audi's mid-size car was named the Audi 100 (or Audi 5000 in the United States) and was released in three successive generations (C1, C2 and C3). In 1994, the latest generation (C4) of the Audi 100 was facelifted and re-badged as the A6, to fit in with Audi's new alphanumeric nomenclature (as the full-size A8 had just been introduced). The exterior was changed only slightly from the "C4" Audi 100 - new front and back lights, new radiator grid, similarly with chassis and engine and transmission choices. The UK was the first market to receive the A6, as stock of right-hand-drive Audi 100s had run out before expected, and before the rest of Europe.

The new engines for the A6 were 1.8 20V I4, 2.8 30V, 1.9 TDI I4, and the 2.5 TDI I5 (140 PS), with the 2.3L I5 engine being dropped on most markets. The S6's 4.2 V8 engine was uprated to 290 PS (286 hp/213 kW) and a new 326 PS (322 hp/240 kW) version was added (S6+ made by quattro GmbH).

Until 1997, the A6 came with several different engines, two of them turbodiesel, and most of them available with Audi's Torsen-based quattro permanent four-wheel drive system. The A6 was also available with saloon and Avant bodies.

The C4 design was available with the following engines:

Engine Cyl. Power
1.8 20V I4 125 PS (123 hp/92 kW)
2.0 8V I4 100 PS (99 hp/74 kW)
2.0 8V I4 115 PS (113 hp/85 kW)
2.0 16V I4 140 PS (138 hp/103 kW)
2.3 10V I5 133 PS (131 hp/98 kW)
2.6 24V V6 150 PS (148 hp/110 kW)
2.8 12V V6 174 PS (172 hp/128 kW)
2.8 30V V6 193 PS (190 hp/142 kW)
S6 2.2 20V T I5 230 PS (227 hp/169 kW)
S6 4.2 32V V8 290 PS (286 hp/213 kW)
S6 4.2 Plus V8 326 PS (322 hp/240 kW)
1.9 8V TDI I4 90 PS (89 hp/66 kW)
2.5 10V TDI I5 115 PS (113 hp/85 kW)
2.5 10V TDI I5 140 PS (138 hp/103 kW)

C5 (1998-2004)

Audi A6 (C5)
C5 Audi A6 2.8 Avan (US)
Production 1998-2004
Platform Volkswagen Group C5 platform
Engine(s) 1.8L I4 20 valve
1.8L Turbo I4 20 valve
2.0L I4 20 valve
2.4L V6 30 valve
2.8L V6 30 valve
3.0L V6 30 valve
2.7L V6 Turbo 30 valve
4.2L V8 40 valve
1.9L TDI I4
2.5L TDI V6 24 valve
Transmission(s) 5-speed manual
6-speed manual
5-speed automatic
Wheelbase 2760 mm (108.7 in)
Length 4796 mm (188.8 in)
Width 1810 mm (71.3 in)
Height 1453 mm (57.2 in)
Avant: 1479 mm (58.2 in)
Fuel capacity 70 L (18.5 US gal; 15.4 imp gal)
Related Audi S6
Audi RS6
Audi allroad quattro
C5 Audi A6 sedan (US)
C5 Audi A6 2.8 Avant (US)

In 1997 the scene changed strikingly for the A6. With the introduction of an ambitious new design (C5) and a new pack of engines, the A6 moved up a notch and was positioned alongside the hegemonic BMW 5-Series and the Mercedes-Benz E-Class. The Italian redesigned body presented a modern design with a dramatic fastback styling that set the trend for the Audi lineup and gave the relatively large saloon an aerodynamic shell with a low coefficient of drag of 0.28. In 2000 and 2001, the "C5" A6 was on Car and Driver magazine's Ten Best list. This new A6 presented itself with a wide range of engines and configurations. The 30-valve 2.4 and 2.8 V6 engines represented the bulk of the A6's development programme, with a multitude of other engine configurations available throughout the globe. As an alternative to the manual transmission, a 5-speed tiptronic automatic transmission was also available.

The C5 saloon body arrived in 1997, and the Avant body in 1998 in Europe. In the US, the C4 continued for 1997, with the C5 saloon appearing in 1998, and the C5 Avant appearing in 1999. In Canada, there was no Avant (wagon) available at all in 1998 - Audi dropped the C4 Avant at the end of the 1997 model year, and jumped straight to the C5 Avant in 1999 in conjunction with its release in the US. As a result of complying with FMVSS the North American models were equipped with front and rear bumpers that protruded several inches further than their European counterparts, with modified brackets and bumper suspension assemblies as result and child-seat tethers for occupant safety. In compliance with Canadian law, Canadian models received daytime running lights as standard equipment. North American C5 A6 models received the 2.8 litre, 30-valve V6 engine (often referred to derisively as the "2-point-late" given its relative lethargy compared to other A6 engines of the day), the 2.7 litre, bi-turbo V6 (also found in the B5 platform S4), and the 4.2 litre 40-valve V8. The V8 models arrived with significantly altered exterior body panels, with more aggressively flared wheel arches, revised headlamps and grille design (before being introduced in 2002 to all other A6 models), taller and wider wheels (17x8"), larger brakes and quattro as standard.

The Audi S6 was a high-powered variant of the A6 line, featuring a modified version of the 4.2 engine producing 340 PS (335 hp/250 kW). It was available as a saloon and Avant.

In 2002 the A6 received a facelift with revised headlight and grille design, exposed exhaust tips, and slight changes to accessory body moldings and tailight color from red to amber in North American models. A new host of engines were introduced as well. The 1.8 L engine was removed and replaced by a 2.0 L powerplant with 130 PS (128 hp/96 kW). The 1.9 L TDI was tweaked into producing a maximum of 130 PS (128 hp/96 kW) and 310 N·m (229 lb·ft), receiving a 6-speed gearbox in the process. The 2.4 V6 gained 5 extra hp and better balancing and the 2.8 V6 was replaced by a 3.0 L engine boasting 220 PS (217 hp/162 kW). The turbocharged 2.7 L was given a tweak on the turbo resulting in 250 PS (247 hp/184 kW) and 330 N·m (243 lb·ft), controlled by standard quattro. The V6 Diesel was also slightly modified resulting in 163 PS (161 hp/120 kW) (after the second modification) and 350 N·m (258 lb·ft). A new more powerful V6 diesel was also introduced presenting 180 PS (178 hp/132 kW) and 370 N·m (273 lb·ft). The 4.2 V8 engine which arrived in 2001 remained unchanged.

Also new was the revolutionary multitronic continuously variable transmission, available in most front wheel drive models in the lineup. All models, except the 2.0 petrol and 1.9 TDI, were available with Audi's four wheel drive system, quattro. A four wheel drive version of the estate with raised ground clearance and slightly altered styling was sold as the Audi allroad quattro, Audi's first crossover SUV.

Regarding this C5 generation, Car and Driver magazine stated, "It is one of the most winsome mid-sizers to meet pavement, with some of the nicest handling this side of a BMW. In 2000, the moderate performance of this otherwise excellent, 3.0 litre V6-powered, sedan was improved by the addition of two higher-performance versions: the 250 PS (247 hp/184 kW), 2.7T bi-turbo V6 and the 300 PS (296 hp/221 kW), 4.2 V8, both with Audi's quattro permanent four-wheel drive system. In mid-2003, major muscle came along in the limited-run RS 6-powered by a 450 PS (444 hp/331 kW), twin-turbo V8 - which immediately finished first in a C/D comparison test".

In the late years of the A6 C5 design, a monstrous limited-run Audi RS6 model was presented. Weighing 4229 pounds and producing 450 PS (331 kW) and 560 Nm (415 ft·lbf), it propels the RS6 from 0-100 km/h in 4.8 sec and on to 200 km/h (124 mph) in under 17 seconds. This model saw the end of the C5 design which was replaced in 2004 by a new model.

The C5 design was available with the following engines:

Name Volume Engine Fuel Output Torque 0-100 km/h,s Top speed Years
1.8 20v 1.8 L (1781 cc, 109 cu in) 4cyl Petrol 125 PS (123 hp/92 kW) @5800 rpm 168 N·m (124 lb·ft) @3500 rpm 11.3 203 km/h (126 mph) 1997–2001
1.8 20v Turbo 1.8 L (1781 cc, 109 cu in) 4cyl Petrol 150 PS (148 hp/110 kW) @5700 rpm 210 N·m (155 lb·ft) @1750–4600 rpm 9.5 207 km/h (129 mph) 1997–2005
2.0 20v 2 L (1984 cc, 121 cu in) 4cyl Petrol 130 PS (128 hp/96 kW) @5700 rpm 195 N·m (144 lb·ft) @3300 rpm 10.5 203 km/h (126 mph) 2001–2005
2.4 30v 2.4 L (2393 cc, 146 cu in) V6 Petrol 165 PS (163 hp/121 kW) @6000 rpm 230 N·m (170 lb·ft) @3200 rpm 9.2 220 km/h (137 mph) 1997–2001
2.4 30v 2.4 L (2393 cc, 146 cu in) V6 Petrol 170 PS (168 hp/125 kW) @6000 rpm 230 N·m (170 lb·ft) @3200 rpm 9.3 224 km/h (139 mph) 2001–2005
2.7 30v Turbo 2.7 L (2671 cc, 163 cu in) V6 Petrol 230 PS (227 hp/169 kW) @5800 rpm 310 N·m (229 lb·ft) @1700 rpm 7.5 247 km/h (153 mph) 1999–2001
2.7 30v Turbo 2.7 L (2671 cc, 163 cu in) V6 Petrol 250 PS (247 hp/184 kW) @5800 rpm 350 N·m (258 lb·ft) @1800 rpm 6.8 248 km/h (154 mph) 2000–2005
2.8 30v 2.8 L (2771 cc, 169 cu in) V6 Petrol 193 PS (190 hp/142 kW) @6000 rpm 280 N·m (207 lb·ft) @3200 rpm 8.1 236 km/h (147 mph) 1997–2001
3.0 30v 3 L (2976 cc, 182 cu in) V6 Petrol 220 PS (217 hp/162 kW) @6300 rpm 300 N·m (221 lb·ft) @3200 rpm 7.5 243 km/h (151 mph) 2001–2005
4.2 40v 4.2 L (4172 cc, 255 cu in) V8 Petrol 299 PS (295 hp/220 kW) @6200 rpm 400 N·m (295 lb·ft) @3000 rpm 6.9 250 km/h (155 mph) 1999–2005
S6 4.2 40v 4.2 L (4172 cc, 255 cu in) V8 Petrol 340 PS (335 hp/250 kW) @7000 rpm 420 N·m (310 lb·ft) @3400 rpm 5.7 250 km/h (155 mph) 1999–2005
RS6 4.2 40v Turbo 4.2 L (4172 cc, 255 cu in) V8 Petrol 450 PS (444 hp/331 kW) @5700–6400 rpm 560 N·m (413 lb·ft) @1950–5500 rpm 4.9 250 km/h (155 mph) 2002–2004
RS6 Plus 4.2 40v Turbo 4.2 L (4172 cc, 255 cu in) V8 Petrol 480 PS (473 hp/353 kW) @6000–6400 rpm 560 N·m (413 lb·ft) @1950–6000 rpm 4.6 280 km/h (174 mph) 2004
1.9 TDI 8v 1.9 L (1896 cc, 116 cu in) 4cyl Diesel 110 PS (108 hp/81 kW) @4150 rpm 235 N·m (173 lb·ft) @1900 rpm 12.6 194 km/h (121 mph) 1997–2000
1.9 TDI 8v 1.9 L (1896 cc, 116 cu in) 4cyl Diesel 115 PS (113 hp/85 kW) @4000 rpm 285 N·m (210 lb·ft) @1900 rpm 11.6 196 km/h (122 mph) 1998–2001
1.9 TDI 8v 1.9 L (1896 cc, 116 cu in) 4cyl Diesel 130 PS (128 hp/96 kW) @4000 rpm 285 N·m (210 lb·ft) @1750–2500 rpm 10.5 203 km/h (126 mph) 2001–2005
1.9 TDI 8v 1.9 L (1896 cc, 116 cu in) 4cyl Diesel 130 PS (128 hp/96 kW) @4000 rpm 310 N·m (229 lb·ft) @1900 rpm 10.5 203 km/h (126 mph) 2001–2005
2.5 TDI 24v 2.5 L (2496 cc, 152 cu in) V6 Diesel 150 PS (148 hp/110 kW) @4000 rpm 310 N·m (229 lb·ft) @1500–3200 rpm 10.0 215 km/h (134 mph) 1997–2001
2.5 TDI 24v 2.5 L (2496 cc, 152 cu in) V6 Diesel 155 PS (153 hp/114 kW) @4000 rpm 310 N·m (229 lb·ft) @1400–3500 rpm 9.7 219 km/h (136 mph) 2001–2002
2.5 TDI 24v 2.5 L (2496 cc, 152 cu in) V6 Diesel 163 PS (161 hp/120 kW) @4000 rpm 310 N·m (229 lb·ft) @1400–3600 rpm 9.3 222 km/h (138 mph) 2002–2005
2.5 TDI 24v 2.5 L (2496 cc, 152 cu in) V6 Diesel 163 PS (161 hp/120 kW) @4000 rpm 350 N·m (258 lb·ft) @1500–3000 rpm 9.3 222 km/h (138 mph) 2003–2005
2.5 TDI 24v 2.5 L (2496 cc, 152 cu in) V6 Diesel 180 PS (178 hp/132 kW) @4000 rpm 370 N·m (273 lb·ft) @1500–2500 rpm 8.9 221 km/h (137 mph) 1999–2005

C6 (2005-present)

Audi A6 (C6)
2005-2008 Audi A6 3.2 sedan (US)
Production 2005-present
Platform Volkswagen Group C6 platform
Engine(s) 2.0L Turbo I4
2.4L V6
2.8L FSI V6
3.2L FSI V6
4.2L V8
2.0L TDI I4
2.7L TDI V6
3.0L TDI V6
5.2L 435 PS (429 hp/320 kW) V10
Transmission(s) 6-speed manual
6-speed automatic
CVT Multitronic
7-Speed S Tronic (2008~)
Wheelbase 2843 mm (111.9 in)
Length 4916 mm (193.5 in)
Avant: 4933 mm (194.2 in)
Width 2009-: 79.2 in (2012 mm)
2005-08: 1855 mm (73 in)
Height 2009-: 57.5 in (1461 mm)
2005-08: 1459 mm (57.4 in)
2005-08 Avant: 1463 mm (57.6 in)
2009- Avant: 58.2 in (1478 mm)
Fuel capacity 70 L (18.5 US gal; 15.4 imp gal)
Related Audi S6
Audi RS6
Audi A6 allroad quattro
Audi A6 3.2 wagon (US)

The new A6 (C6) was released in 2005. Designed by Walter de'Silva, the new model is visually an evolution of the C5, but is longer (492 cm), incorporates the new Audi trademark single-frame grille, and features more sophisticated technology. Most notable is the MMI (Multi Media Interface) which is a system controlling in-car entertainment, satellite navigation, climate control, car settings such as suspension configuration and optional electronic accessories through a central screen interface. This has the advantage of minimizing the wealth of buttons normally found on a dashboard by replacing them with controls which operate multiple devices using the integrated display.

On the engine side the new FSI direct injection technology was introduced for the first time outside the race track. Although the line of engines represents the same progression as the former model, all engines were new. The Multitronic automatic transmission continues as an alternative alongside a new 6-speed Tiptronic gearbox available in the high end models. quattro permanent four wheel drive is available in most of the lineup, and standard in the most powerful models. quattro is not available on the multitronic variants of the A6 but is available on the manual and Tiptronic gear systems. Conversely the Tiptronic system is only available on the quattro variants of the car. The 6-speed manual gearbox is available with the 3.2L engine but not for the North American market as sales of C5 manuals were slow.

In 2005, the new Audi A6 won the World Car of the Year award, and has recently won its class in the practical caravan tow car of the year awards, due to its array of towing features such as adjustable suspension height and damping, and the presence of a Trailer Stability Program.

Like the previous model, the A6 is available with other body options. The Avant arrived during the course of 2005, while in China, a longer version was introduced in the same year, named A6 L. The allroad (now called "A6 allroad quattro) model made its debut in 2006 and as before is an off-road ready version of the Avant available with either a 2.7 or 3.0 diesel or a 3.2 or 4.2 petrol. The sporting S6 was introduced in the Frankfurt Motor Show, with sales beginning in early 2006. It is powered by a Lamborghini-derived 5.2 L V10 FSI producing 435 PS (320 kW). The S6 reaches 60 mph from a standstill in 5.1 seconds and the quarter mile 13.5 seconds.[1]

A mighty RS6 will be on sale early 2008. This will be powered by a Lamborghini-derived 5.0 L V10 TFSI producing 580 PS (426 kW).

On the 01/22/2008 spy photos of the mid-life facelift A6 appeared on the internet.[2] The images show a slightly redesigned front bumper, new rectangular fog lamps as well as bigger air-intakes to the left and right of the grille.

The C6 design was available with the following engines:

Engine Cyl. Power
2.0 16V TFSI I4 170 PS (168 hp/125 kW)
2.4 24V V6 177 PS (175 hp/130 kW)
2.8 24V FSI V6 210 PS (207 hp/154 kW)
3.0 30V V6 218 PS (215 hp/160 kW)
3.2 24V FSI V6 255 PS (252 hp/188 kW)
4.2 40V/32V FSI V8 335 PS (330 hp/246 kW)
350 PS (345 hp/257 kW)
S6 5.2 40V FSI V10 435 PS (429 hp/320 kW)
2.0 16V TDI I4 140 PS (138 hp/103 kW)
2.7 24V TDI V6 180 PS (178 hp/132 kW)
3.0 24V TDI V6 225 PS (222 hp/165 kW)
233 PS (230 hp/171 kW)


Audi A6 C6 Avant Facelift

Audi unveiled the upgraded "C6" Audi A6 on August 12, 2008 at the Moscow International Motor Show. It features a new engine variant, a 290 PS (286 hp/213 kW) 3.0 liter V6 TSI powered by a supercharger, one of the 6 petrol and 4 diesel engines available for the upgraded A6.[3]

Engine Cyl. Power
2.0 16V TFSI I4 170 PS (168 hp/125 kW)
2.8 24V FSI V6 190 PS (187 hp/140 kW)
220 PS (217 hp/162 kW)
3.0 TFSI (Supercharger) V6 290 PS (286 hp/213 kW)
4.2 32V FSI V8 350 PS (345 hp/257 kW)
S6 5.2 40V FSI V10 435 PS (429 hp/320 kW)
2.0 16V TDIe I4 136 PS (134 hp/100 kW)
2.0 16V TDI I4 170 PS (168 hp/125 kW)
2.7 24V TDI V6 190 PS (187 hp/140 kW)
3.0 24V TDI V6 240 PS (237 hp/177 kW)


The second-generation A6 was on Car and Driver magazine's Ten Best list for 2000 and 2001. The updated 2005 A6 won the World Car of the Year award for 2005.


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