My 99 a6 2.5 tdi cut out yesterday. managed to get it towed home ok.Called a mobile diagnostic mechanic out and it said the control module for injection pump has packed up.
Audi says you have to buy an exchange injection pump+ control unit for 1500 +vat
Found complete pump and unit in the brakers for 400 +vat
What I need to know is can I just replace the contol module which is bolted on top of the injection pump which is a 5 min job or will I have to replace the whole pump unit ?