Strange central locking issue.

I assume the throttle body is at the other end of the air pipe to the MAF sensor. This looks a little more complicated than the MAF but I think I'll be able to do it. Thanks again for the info and I'll post a reply asap.

Hi, you're welcome.

Word of warning though, if you attempt to do the throttle body yourself, is that when the throttle body is put back in, it NEVER goes in the same place, and the ECU needs to be calibrated bvia the VAG COM interface. TThis needsto be set to basic setting 98. If you dont do this, every time the car approcahes idle it could well stall, since the computer thinks the throttle body is in a different position.
If you can calivbrate it, then it's not too much of a job, otherwise, best to take it to a garage.

Removing and refitting the throttle body is not a major issue, and you are right it is at the other end of the pipe.

Good luck!

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Yeah the thing is, I want a good maintained car on low mileage. For a 2001 S4 (I'm looking at them right now) it will be around $10k for 100k miles. I bought my 2000 A4 2.8 for $10k on 49k miles. The cars are very much alike. So I was thinking I'll buy the engine, the tranny and the other required components and it will cost me around $10k.