Hi Everyone,
I'm new to the Audi world but have been working on cars for sometime now. The amount of information on this forum is amazing! Now that I understand a lot of common problems with the B7 i'd love some advise.
I recently purchased a "mechanics special" 2007 2.0T quattro with 172,000 miles for sale at a local Audi dealership. The engine is misfiring and is not safe to be on the road. I've ordered the scantool but until it comes all I have is a standard OBD2 reader. The dealer stated the car needs four new coils, a new turbo charger, two engine mounts and all control arms. If I can get this car working I know the timing belt should be replaced and will do so. I've pulled the following codes below.
My question for all of you is which order should I proceed with diagnosing the misfiring? I really want to know what will be involved with repairing this car. Would hate to spend money fixing problems but end of up a major problem not allowing me to complete repairs.
P0299: Turbo Under-boost- I'm thinking I need the "D" revision diverter valve or the problem is a faulty wastegate. From what i've read I need to use the scan tool to see the charger is producing any boost. Before I can diagnose this I think the misfires have to be resolved?
P0404: Misfire
P2181: Cooling performance- Stuck Thermostat? I will use the scan tool to see if the reading from the temp sensor is off. If not then the thermostat needs to be replaced?
P0300: Random Misfire- Should I look at the cam lobe/HPFP?
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Originally Posted by Okedokey
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