The Audi A6 has been given a mid-life refresh as a new model waits in the wings. As well as styling revisions, there are upgraded lighting options, a new infotainment system and new transmissions.
On the outside, design changes have been made to the “Singleframe” grille, the air inlets, the bumpers, the side sills, the rear lights and the tailpipes. Audi has confirmed all UK A6 SE models will also get xenon headlamps as standard, while S line versions and above will come with LED headlights with dynamic ‘sweeping’ rear indicators.
In the UK the engine line-up for the new A6 and A6 Avant will comprise four TDI engines with either four or six cylinders and either single or twin turbo charging. All engines comply with the limits of the Euro 6 emission standard, and their CO2 emissions have been reduced by a claimed 22 per cent. As before, the most efficient engine – the 2.0-litre TDI four-cylinder with 187 bhp – is reserved for “ultra” versions of the saloon and Avant estate which Audi claims return up to 64 mpg with CO2 output from 114g/km.
The trio of 3.0-litre six-cylinder TDI ‘clean diesel’ units kicks off with a single-turbo V6 with 215 bhp which replaces the existing 201 bhp version, and is followed by a 268 bhp variant, also with a single charger, which takes over from the outgoing 242 bhp. At the top of the range, the 3.0 TDI clean diesel biturbo produces 316 bhp, an increase of 7 bhp over its existing equivalent.
The latter is paired with an eight‑speed tiptronic automatic transmission. All other engine variants are linked to either a newly designed six‑speed manual gearbox, or a seven‑speed S tronic twin-clutch transmission. In the versions with front-wheel drive, a fully redeveloped dual-clutch transmission replaces the eight-speed multitronic continuously variable transmission.
Audi says all-wheel-drive will be made available in conjunction with all engines bar the 2.0-litre TDI.
In keeping with the recently introduced facelifted S7, the S6 and S6 Avant both use the 4.0-litre TFSI petrol engine, a twin turbo V8 producing 444 bhp, which accelerates the saloon from rest to 62 mph in 4.4 seconds. The estate completes the sprint in 4.6 seconds. Combined fuel economy is listed at 30.7 mpg in the saloon and 30.1 mpg in the Avant, the equivalent of 214 and 219 grams CO2 per kilometre, respectively.
Standard equipment in the new S6 and S6 Avant includes quattro permanent all‑wheel drive incorporating the sports differential and the adaptive air suspension, which lowers the body by 20 millimetres. Matt black brake calipers grip the front discs mounted behind the 19‑inch wheels.
The figurehead of the new A6 family remains the RS 6 Avant, which accelerates to 62 mph in a claimed 3.9 seconds and can reach a top speed of 189 mph. Its 4.0-litre TFSI engine produces 552 bhp and returns 29.4 mpg, corresponding to 223 grams CO2 per kilometre.
An eight‑speed tiptronic transfers the power from the twin turbo V8. The standard quattro drivetrain uses a centre differential with a higher locking rate and also features the sports differential acting on the rear axle.
Order books for the updated A6 are expected to open for UK ordering during September ahead of first deliveries in late 2014.