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2002 Audi A6 Quattro Questions

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if i try to idle at 1000 rpm it surges from 2000 to 500 rpm it has emission codes would exhaust leak or emission sensors cause this ?
What could it means no oil is leaking
Does it sound like I need new transmission r just add fluids and change any broken seals??
the esp system doesn't work without the fuse andthe idle drops to low without that fuse, sometimes it stalls out when comming to a stop,does anybody know whats happening,please help audi dave
when turning volume up it may go up or down.
It has no leaks
Locked in park then ac quit.
Furthermore, the vehicle shakes and struggles to accelerate for 5-10 min then drives mostly fine for the remainder of the day. This happens at the beginning of each day. The Audi also shows signs of needing a new timing belt and water pump as it shakes while idle and overheats a bit. Help!
Recently changed hose between power steering pump and engine block. Loud groaning and super stiff steering. Dont believe it is the pump, and have tried flushing reservoir and turned wheels lock to lock many times. after that, noise stops until i drive.
where is cam position sensor b located
location to replace
Just replaced the fuel pump Mechanic thought it was my problem.But now the car turns over but still won't start and now the EPC light is on.My friend who is a mechanic I guess says it doesn't seem to be getting gas to the engine but there is fuel in the lines. He's lost and I don't know what to look at next.Signal mom please help me.
My 2002 Audi A6 Quattro is having electrical issues. I went in a store and came out and all my windows were down. As I was driving the door locks were trying to unlock and they cannot be locked with the key fob or the key itself. It was very cold today is the only reason I see it could be doing this. I pulled the batteries out of the key fob that did nothing. My question is how can I stop my car from doing this?
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