Blower

[londonlhdcentre]

Hi all, on the 96 993 tip i have the heater blower speeds up when i put the car in reverse then slows down again when i go back into D, it's obviously an earthing thing, it's not really a problem but i would like to know if anyone has experienced this too

[ToreB]

I've never heard of this before.
What blower is speeding up, the two front interios blowers or the rear AUX blower?
If the latter is the case, I would suspect some electrical short-circuit. Have you had your engine harness replaced?
Details on the blowers are given here
Cheers,
Tore

[londonlhdcentre]

Hi, it's the in car warm air fan

[Traveller]

Originally Posted by ToreB

I've never heard of this before.

Cheers,
Tore

Tore, could it have something to do with the solenoid that closes a fresh air flap in the rear duct when the car is put into reverse?

I read about that somewhere but I haven't really looked into that feature since its not all that interesting, car-wise.

A "back-up" signal does go to the CCU.

[ToreB]

I agree Alex, that's why I asked if his engine wire harness has been replaced under warranty. Failing wire insulation could cause a short cirtcuit.
Cheers,
Tore