Where is the vehicle speed sensor?
I have an 2003 Audi A4 1.8t Quattro 5-speed.
Pictures please if possible.
The location where the speed sensor would normally go has a rubber plug on mine.

 

its in the engine block right next to the oil filter. It has a grey connector i believe.

 

Im almost sure that would be the engine speed sensor. The speed impulse sensor (as told by the dealerships parts department) is near the axle flange on the drivers side.

 

Hey, just wondering if you found the location of the speed sensor and how long did it take you? Im having the same issue as I have no idea where to start looking...

 

Turns out my 2003 Audi a4 does not have a speed impulse sensor. The speed is evidently detected from the front left abs sensor. I swapped that out and it didn't fix the problem. I'm going to try to; clean all of my abs sensors, check the connections, and clean out the slots that the abs sensors go into.