Last week I fixed my father's A2, which had a nasty problem.
If you ever have the same problem, hopefully you remember this post, as my fathers dealer has been working on this for a day without finding the solution. ($$)
The EPC and engine MIL were on and fuse 31 melted.
Reading the codes from the ECU:
16955 P0571 Cruise/Brake Switch (A) Circ Malfunction
17809 P1401 EGR Valve Circ Short to Ground
17851 P1443 EGR Valve Position Sensor Signal too low
Fuse 31 is described as being for the EPC.
After some measuring, it turned out to be the PCV heating element.
N79(036 906 391A) The heating element was internally shorted.
The part is not expensive (about 40 euro's) and replacing it is very easy (10 minutes work), but if your dealer wouldn't find it in reasonable time, it could still be an expensive repair.
If you ever have the same problem, hopefully you remember this post, as my fathers dealer has been working on this for a day without finding the solution. ($$)
The EPC and engine MIL were on and fuse 31 melted.
Reading the codes from the ECU:
16955 P0571 Cruise/Brake Switch (A) Circ Malfunction
17809 P1401 EGR Valve Circ Short to Ground
17851 P1443 EGR Valve Position Sensor Signal too low
Fuse 31 is described as being for the EPC.
After some measuring, it turned out to be the PCV heating element.
N79(036 906 391A) The heating element was internally shorted.
The part is not expensive (about 40 euro's) and replacing it is very easy (10 minutes work), but if your dealer wouldn't find it in reasonable time, it could still be an expensive repair.