View Single Post
      08-24-2011, 02:48 PM   #8
E90Fleet
Lieutenant General
South Africa
1307
Rep
10,185
Posts

Drives: BMW
Join Date: Apr 2005
Location: South Africa

iTrader: (0)

Auto gearbox ?
Had something similar on a E46 3 Series

Sounded like fan belt slipping shortly after start for up to about 2min.
Turned out to be the Auto gearbox and a software update of the gearbox solved the problem.

We were all certain the sound as coming from the engine, but was the gearbox running a incorrect mode after startup.

There were no other signs of problems, just the sound after startup and of course never did it at the dealer.

It was a little louder if you shifted into D right after starting which made me think of the gearbox months after the problem started.
__________________
BMW if you are reading, I need a job, Please.
Appreciate 0