2.5tdi

  1. S

    Audi A6 C5 2.5 TDI – Hot starting problem and intermittent 00550 injection timing fault – VCDS log attached

    Hi everyone, I'm hoping someone with experience of the 2.5 TDI V6/VP44 injection system can help me diagnose a problem with my A6. The car is a 2004 Audi A6 C5 (4B5), 2.5 TDI, and I've owned from new. The engine is the AKE/BDG-family 2.5 TDI with the Bosch VP44 injection pump. The car has...
  2. Curtym

    Audi A4 B6 2.5TDI V6 sudden loud knocking now not idling or driving with smoke

    Hi All, Unfortunately I would've liked to have found this site through the love of my A4 and not it's potential demise :( So the story goes, I went on the motorway down to the shops, absolutely no issues(other than usual). I then come out, start the car to extremely loud pinging and knocking...
  3. G

    2.5 TDI V6 High IQ Deviation values

    After injectors rebuild with brand new nozzles i get really high Devitation values but the actual IQ is withing spec. 2.20 mg/str Injection Quantity Deviation Cyl. 1 2.35 mg/str Injection Quantity Deviation Cyl. 3 -0.31 mg/str Injection Quantity Deviation Cyl. 5 2.35 mg/str Injection...
  4. J

    B6 2.5tdi cranks but won't start

    hi guys First post, so hello everyone. In need of some major help... I have an a4 2.5tdi cab with auto bdg engine and the ****** just won't start. It has had a front end whack that i have repaired but it has now start on my drive for nearly a year because i just can't get it to start up. The...
  5. CodrutG

    Audi A8 D2 2.5 TDI crank no start

    Hello everyone! First post here as i recently bought an 2000 Audi A8 D2, with the AKE 2.5TDi V6 engine, and I seem to have encountered a problem with it. I think worth mentioning is that when I bought it the last owner had a small ish battery in it that would not be enough to start the car if...
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