FAO Tame Technician

Author
Discussion

Farky

Original Poster:

870 posts

205 months

Friday 3rd July 2009
quotequote all
I'm looking at a couple of cars 2moro, one of them being a 54 plate Audi A3 2.0TDI Sport. The car has done 64k mls with Full Audi History.
Is there ANYTHING i should be worried about regarding the reliability of this engine?? Anything i should look out for, common faults etc etc??

Any help is appreciated.

Ian

_Batty_

12,268 posts

251 months

Friday 3rd July 2009
quotequote all
gearbox failure, i've known of a couple.
and any emissions lights.

thats all i have to offer
smile
Matt

va1o

16,032 posts

208 months

Friday 3rd July 2009
quotequote all
ESP light on dash could indicate failure of the ABS Control unit, quite common out of warranty, £1500 to fix.

Tame Technician

2,467 posts

205 months

Saturday 4th July 2009
quotequote all
Check the service history first off all. Make sure its had regular oil changes. Check the old MOTs if possible to confirm the millage, Drive the car listen for any undue knocking ect. But the anti roll bars are better on the A3 than similar TT, so should be fine.

Make sure everything works, both keys and remotes the A/C as compressor failure is common.

Gearbox's are pretty good provided its manual so I wouldnt worry there, if its DSG dont bother.

IMPORTANT
You can ckeck for all the common 2.0TDI engine faults in one simple maneuver on the road test.

Once the engine is warm find a nice long clear stretch, (you will be doing 70 odd by the end)
Accelerate in 3rd or 4th gear from very low revs say 1200rpm but at absolutely full throttle.(2nd it happens to quick so doesn't show up any faults)

It should slowly gather speed and take off at around 1500-1800 rpm, it should then accelerate smoothly and well upto about 3800 then slightly drop off, but keep on full throttle until around 4400. DO this 2 or 3 times, and Dont be alarmed if it smokes alot the first time you do it, means the current driver doesnt rev it high very often.

If it doesnt take off until 2200-2500 there is a vacuum issue with the N75.

If you get a smooth loss of performance over 3000rpm, the MAF is knackered.

If you get a sudden major loss of power on the second or third attemp (limp mode) the turbo is knackered.

If you get any misfiring (loss of performance that isnt smooth, propper juddering) above say 3000 then there is a loss of fuel pressure, either tandem pump or injector seals leaking.