I am having a problem with my 2008 Audi a4 (b7) 2.0 tdi Quattro 170bhp
I have read a post on here in reply to someone experiencing a similar problem to mine and I wondered if you would be able to help
There is an underboost problem (as coming up on diagnostic computer) and the car doesn’t go over 3k revs (even when stood still)
The car is jerky whilst driving
i went on the motorway a few months ago and had to put full foot down to get up to about 65mph then the coil light came on… oh dear
Few days after the oil pressure light came on and I had to take it into garage and they changed the oil pump (where the Allan key rounds off)
Then the turbo was done on it, still no change
So mechanic advises to change n75 as this may be the problem
Then the n75 changed, still no change
AutoElectrician put a computer on and finds nothing (no engine mangmnt light on.. no lights on dash at all)
When driving the complete power is not there, and it struggles going uphill
I have had to put my foot down once on a motorway and the coil light came on again and my heart sunk (luckily didn’t need to do oil pump again)
I am very reluctant to put my foot down now and would rather put hazard lights on then risk damaging something else
I’m at a wits end with this car
A pointer in the right direction would be greatly greatly appreciated
Or even a top top specialist who u know will be able to sort, as all the top ‘specialists’ seem to be stumped
1. Oil pump done
2. Turbo done
3. N75 done
Please advise
