bimba

The car is E60 1996 - Please look at the video and listen the sound when I start the engine.

http://youtu.be/UaEalNlChAk

WTF is this squeaky sound? The sound comes and go...times is stronger and less..
I asked the local BMW garage to fix it... they did it (it was something to do with belts), but after few days softly it come back!
I asked the garage again to see what's wrong, they looked at it ...and the answer was - recently this issue occurs on more cars and wwe're investigating the problem!WTF?

So, I'm waiting...

PLEASE maybe some had this issue before or knows what's wrong and how to fix it !

Thank You

buddy

If you are talking about the quick squeak upon start up sounds like a belt, it could also be a pulley going bad though a bearing in a pulley is usually followed by a grumble noise if it is really bad. Does it come and go when you goose the throttle? Try some belt ease and see if the noise goes away then comes back if so then it is probably your belt and is time to be replaced

thomas finlass

The squeek on start up sounded like a slipping belt???? If the dealer replaced the belts...maybe the bearings are gone/going on the belt pulleys/tensioners, but it really doesn't sound like a bearing problem....my best guess is a slipping belt.

luigi524td

It does sound like a serpentine belt issue. However, DO NOT use any of those belt dressing products - they are intended for conventional V bells. Instead, with the engine running spray the belts with plain water ... Use a plastic spray bottle - not a hose. If the noise subsides the problem may be a glazed belt or pulley/tensioner.
Typically, they cannot be repaired but replaced.

bimba

Thank you for the advices.
The dealer did change the belt, but the noise keep coming back and coming back! And times I have no sound at all.
Every time when I bring the car for usual service I telling them
about the issue, but somehow they can't fully fix it. It is very strange as it is official BMW dealer!

Well, I'll try keep pushing the dealer as this noise getting very very annoying!

stoic1

Your other option instead of taking it to BMW is to find a qualified independent BMW shop. Probably save some money too.