Audi A4 (2008 – 2015) Review

Audi A4 (2008 – 2015) At A Glance

4/5

+High quality interior with plenty of space. Excellent steering and handling. Available with quattro four-wheel drive. Frugal 2.0 TDI. Improved for 2012 with more efficient engines.

-Doesn't handle quite as well as a BMW 3 Series.

Insurance Groups are between 19–36
On average it achieves 76% of the official MPG figure

The Audi A4 of 2008 marked a significant improvement in the weight distribution of the drivetrain of front wheel drive Audi models.

Just as Porsche developed increasingly sophisticated solutions to overcome the fundamental imbalance of an engine overhanging the back wheels, Audi has had to do the same job at the front.

Worst of all were the old iron block five-cylinder Audi 100 diesels that much preferred to go straight on at corners than actually change direction.

Fortunately, for most of us, these are no more than a memory. Audi has continually been getting better at dealing with its disability and had all but disguised the ponderous pendulum effect of its overhanging engines in the final incarnations of the 2005-2008 A4.

But its big breakthrough came in 2007 with the A5. The engine still sits out in front of the front wheels longitudinally, but, by moving final drive further forward, the weight of engine and transmission is better distributed between the front wheels.

How they do this is to take drive from the back of the gearbox, then run a propshaft forward to a differential that sits on the right hand side of the flywheel, with the left driveshaft running between the engine and the flywheel.

The 2008 A4 shares this new drivetrain, as well as a longer wheelbase than past Audis and much improved front suspension, now 5 link in aluminium, with a steering rack repositioned in front of the engine so steering input is fed more directly to the wheels.

Real MPG average for a Audi A4 (2008 – 2015)

RealMPG

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

76%

Real MPG

19–66 mpg

MPGs submitted

745

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.

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Ask Honest John

We've had four clutches in our Audi A4 - is there any way to rectify this constant issue?
"I have read with interest what to watch out for on the car reviews for the Audi A4 B8. We have had four clutches and DMF because of the juddering issue. One at 20,000 when my father owned the car, one at 35,000, one at 35,500 (replaced at the cost of Audi) and now Audi are again advising the gearbox is removed and the clutch checked. I know full well they are going to come back with it requiring a new clutch. From the car reviews, I can see that other people have suffered the same problem and was wondering if anyone ever got to the bottom of this issue before we look at selling the car."
Our records show a number of examples of this problem, but eventually this was reported. "8-11-2015: Reader reported clutch and DMF failure on 2009 A4 B8 2.0 TDI in 2012 at 26,000 miles, then again in late 2015 at 58,000 miles. Independent garage fitting clutch discovered that a modified clutch release fork was required in accordance with an undated Audi TSB." See: https://www.honestjohn.co.uk/carbycar/audi/a4-b8-2008/?section=good/
Answered by Honest John
The rpm on my Audi A4 jumps erratically when idle - what is causing this?
"I have a 2010 Audi A4 diesel auto. When idle, the rpm jumps erratically. It doesn't do this while driving normally though. What could be causing this?"
We would suggest that you check all air/vacuum pipes in case they are loose.
Answered by Alan Ross
What are the implications of not having the emissions fix done?
"How will the emissions update affect the EGR and DPF in my 2009 Audi A4 170PS diesel. It has only 64,000 miles of mostly motorway driving and has been maintained over recent years by an independent VAG specialist. What are the implications of not having the fix done?"
If the EGR is on its last legs and if the injectors are worn they won't take to the remap, which alters the injection sequence. If the car has always been Audi maintained there is a chance that your dealer will fit a new EGR FoC. None, but you may find a VAG dealer unwilling to take it in p/x when you want to move it on.
Answered by Honest John
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

What does a Audi A4 (2008 – 2015) cost?

Buy new from £23,586 (list price from £31,109)