P0758
 

This is a continuation of my 'red lights come on' thread.

Finally got the fault code and it is "P0758 Shifter Solenoid B: Electrical"

We have problems here in Bulgaria with Pine Martens nibbling wires. Is this possible in this case?

Could low ATF levels cause this?
Still a bit baffled by this, but car is doing it 100% of the time now!

Thats either a TCU hardware fault per the discussion in the other thread, or a wiring issue (nibbled or corroded). I've seen it several times now and its never been an actual solenoid problem - its always something outside the gearbox. ATF can't cause those sorts of faults.

Thanks MikkiJayne. I shall investigate further.

I should add that after the very competent guy drove the car, with his OBD attached he said "no pressure".

I've had a look under the car, and there's no sign of damaged wiring.

Does anybody- MikkiJayne possibly??- have a TCU they could sell me?

4D0 927 156 BN is the number on the case.

I have one that came from a8parts when I thought mine was faulty but it wasn’t.
However it’s from a PF car and I think the code ends in BG but not certain.
If this would work on your car let me know and I’ll dig it out and check

PF won't work in an FL as it doesn't have canbus.

MikkiJayne
Your friend in Germany has one, and he has sold it to me.
Many thanks!

Good stuff +++

MikkiJaynes' chum Petros sent me a replacement TCU, which has fixed the car.

I certainly recommend Petros, as a good alternative source if Prestige can't help- for me, living in the EU, importing anything worth more than 50 Euro attracts the full attention of customs, so it's sometimes easier dealing within the EU.

Price wise, the TCU can be repaired for 350 Euro, a new one is very expensive circa 1200 Euro.

Petros charged me 110 Euro delivered- and it works.

Excellent service!

Thanks Petros & MikkiJayne.