Help A6 2.7T biturbo auto backup programme
I have a 2000w A6 2.7T biturbo with tip autobox (A5 type).
My auto box has gone into backup programme (limp home mode) it stays in 3rd gear all the time. This has happened a couple of times in last 6 months but resets on ignition. However the other morning I went from reverse to Drive whilst rolling slightly backwards, the gearbox dropped into backup programme, I restarted the ignition and it cleared again, unfortunately about two miles down the road it dropped into backup during normal driving and has been stuck there since. (it was perfect for two miles start, stops 40mph no noises, very smooth).
Found a friendly garage, OBD fault codes showing are:
P0753 Shift Solenoid A Electrical
P0762 Shift Solenoid C Stuck on
Two other fault codes which did show but cleared on reset:
P1829 Pressure Control Solenoid 4
P1830 Pressure Control Valve 4
Any help or advice is welcome,
03 audi A6 transmisson
HI i have the same thing with my A6 same codes comein up has yours been fixed yet HOPE SO can it be the shift solenoids ? or the TCM