Review: Audi A6 Allroad (2006 – 2012)

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Very comfortable to drive on tarmac or off-road. Classy image and styling. Height adjustable air suspension. Large boot. Ideal for towing. Best on Pirelli Scorpion STRs for the road.

Doesn't handle quite as well as A6 quattro on which it is based.

Audi A6 Allroad (2006 – 2012): At A Glance

The second generation Audi A6 Allroad of 2006 is half way between a normal estate and a full-blown 4x4, making it the ideal car if you need the extra traction of four-wheel drive, but don't want the bulk usually associated with off-roaders. The A6 Allroad comes with Audi's quattro four-wheel drive system as standard, as well as height adjustable air suspension, so it's perfect for towing trailers or caravans across wet fields.

It's based on the Audi A6 Avant (and only comes as an estate) so it's very practical with plenty of rear legroom and a huge boot. It's great on the motorway where it effortless soaks up miles of road with minimal fuss thanks to a forgiving ride and low noise levels.

Of course there is a trade off for this and the A6 Allroad doesn't handle quite as well as the standard A6 and feels noticeable softer in corners, but the extra ground clearance and four-wheel drive makes it superb in snowy and icy conditions where a standard car would struggle.

It comes with Audi's larger engines, but it's the TDI diesels which make the most sense thanks to more reasonable running costs. The 2.7 TDI with the Multitronic gearbox is especially smooth while the 3.0 TDI offers a bit more punch. As with all Audi cars, the A6 Allroad has a superbly built and high-class interior, while a long list of optional extras gives you the chance to personalise your car - at a cost of course.

Audi A6 2004 Range Road Test

Audi A6 Avant 2005 Range Road Test

Audi A6 Allroad 2006 Range Road Test


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What does a Audi A6 Allroad (2006 – 2012) cost?

List Price from £57,010
Buy new from £48,653

Audi A6 Allroad (2006 – 2012): What's It Like Inside?

Length 4934 mm
Width 1862 mm
Height 1521 mm
Wheelbase 2833 mm

Full specifications

The interior of the A6 Allroad is pretty much identical to the A6 Avant so that means a high-class finish and a neat design. You can choose from more traditional wood inlays or modern brushed aluminium trims but all look good and have a quality appearance. Leather upholstery is standard on models from 2008 which is useful if you have younger children as it's easier to keep clean than cloth. Prior to that, the standard cloth trim was a special material called monoPur, which is designed for heavier use than standard cloth.

The layout of the dash is pretty straightforward and the main controls are accessed via the MMI system (which stands for Multi Media Interface) which includes a colour screen. It's very intuitive and easy to use, plus it means the centre console isn't cluttered with buttons. There's also an electric parking brake (rather than conventional handbrake) which also frees up space. The climate control system can be a little confusing to use at first, but it's simple once you've got the hang of it.

There's plenty of adjustment in the seat and steering wheel so finding a comfortable driving position is easy, even for taller drivers. There's also plenty of legroom for those in the back, but the large central tunnel means that getting three people in the back can be cramped in terms of foot room.

Bootspace is immense with 565 litres of room with the rear seats up and 1660 litres with them folded down. The tailgate opening is wide and square too, so awkward and boxy items such as the odd bit of furniture, will fit in easily. The Allroad also gets a boot rail system which includes lashing points and a folding floor, so you can separate items in the boot and stop them sliding around.

Equipment from launch (July 2006):

Just one version of the A6 Allroad is available and it comes with 17-inch alloy wheels, four-corner adaptive suspension with five modes, CD stereo, air conditioning, MMI system, cruise control, electric windows, electric parking brake, electronic differential lock, ESP stability control, multifunction steering wheel (with gear change paddles for automatic models), luggage cover, monoPur upholstery, quattro four-wheel drive, automatic lights, rain sensitive wipers, remote control central locking, aluminium roof rails, split folding rear seats and underbody protection. 4.2 FSI models add 18-inch alloys, electric front seats, electric lumbar support, heated front seats, leather upholstery and xenon lights. Leather upholstery was made standard on all models in October 2008.

Child seats that fit a Audi A6 Allroad (2006 – 2012)

Our unique Car Seat Chooser shows you which child car seats will fit this car and which seat positions that they will fit, so that you don't have to check every car seat manufacturer's website for compatibility.

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What's the Audi A6 Allroad (2006 – 2012) like to drive?

The A6 Allroad is great for motorway cruising where it's forgiving ride and refined nature make it incredibly relaxing. It's also very quiet with very little noise from either the engine (whichever you choose) or from the tyres, so makes a good family car for long trips.

Of course the while point of the A6 Allroad is that it can venture onto more challenging terrain and here it's surprisingly capable considering it doesn't have any dedicated off-road systems. There is a mechanical self-locking centre differential plus height adjustable air suspension with five settings - the highest of which raises ground clearance to 185mm (at speeds up to 22mph).

The ESP electronic stability control has been specially tuned with off-road settings and if you are serious about tackling tricky ground, there are purpose-built all-terrain tyres and a reinforced engine under-guard available as extra cost options, naturally.

On the road, the A6 Allroad strikes a decent balance between comfort and handling, but it does feel a little soft in corners compared to the standard A6. It's certainly not wallowy, but it lacks the agility of an A6 Avant and doesn't feel as precise. There's a good choice of engines though and all of them are strong - but it's the TDI diesels that make most sense.

The most popular is the 2.7 TDI with 180bhp which is only available with a smooth six-speed tiptronic automatic gearbox. This engine was improved in 2008 with an extra 10bhp and also made more efficient with average economy improving from 32.5mpg to 37.7mpg.

The other diesel is the excellent 3.0 TDI with 233bhp and 450Nm of torque (available from as low as 1400rpm). This engine was also improved in 2008 with power boosted to 240bhp. It's available with either the Tiptronic gearbox or a six-speed manual and with the latter it's capable of 39.2mpg making it the most economical engine in the line-up.

There are also a range of petrols including the 3.2-litre FSI and the top of the range 4.2-litre FSI V8 with an immense 350bhp on tap. Later a 3.0 TFSI was introduced (a turbocharged engine) with 290bhp. However, while the petrols sound great and offer strong pace, running costs are high.

Engine MPG 0-62 CO2
2.7 TDI quattro 38 mpg 8.8 s 199 g/km
3.0 TDI quattro 39 mpg 7.2 s 189 g/km
3.0 TDI quattro tiptronic 38 mpg 7.4 s 199 g/km
3.0 TFSI quattro 29 mpg 6.3 s 225 g/km

Real MPG average for a Audi A6 Allroad (2006 – 2012)

Real MPG was created following thousands of readers telling us that their cars could not match the official figures.

Real MPG gives real world data from drivers like you to show how much fuel a vehicle really uses.

Average performance


Real MPG

30–42 mpg

MPGs submitted


Diesel or petrol? If you're unsure whether to go for a petrol or diesel (or even an electric model if it's available), then you need our Petrol or Diesel? calculator. It does the maths on petrols, diesels and electric cars to show which is best suited to you.

What have we been asked about the Audi A6 Allroad (2006 – 2012)?

Every day we're asked hundreds of questions from car buyers and owners through Ask Honest John. Our team of experts, including the nation's favourite motoring agony uncle - Honest John himself - answer queries and conudrums ranging from what car to buy to how to care for it as an owner. If you could do with a spot of friendly advice before buying you're next car, get in touch and we'll do what we can to help.

Ask HJ

What would you recommend doing to keep my diesel Audi A6 Allroad well maintained?

I own a 2011 Audi A6 Allroad 3.0 TDI 240PS 6 speed auto with paddle shifts (98,000 miles). Other than 10,000 mile oil changes, what would you recommend doing to keep this on the road for a few years? It has had full Audi service from new. Is this the troubled gearbox I've read bad reports on? I sold my 2009 Audi A4 2.0 TDI 8 speed at 210,000 miles and am looking for similar again. I cover around 35,000 miles a year.
This will have a proper, reliable torque converter transmission, but the quattro Haldax clutch does require maintenance with regular fluid and filter changes. You might run into trouble due to a build up of ash in the diesel particulate filters, but other readers have successfully had them cleaned out by the Ceramex process at £350 a time. Vital to maintain the tyres so they are all the same type and have similar tread wear. Any significant disparity can confuse the electronics controlling the quattro system.
Answered by Honest John
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