Humming sound from 'transmission'

[tIANcI]

Hi guys ... anyone experienced having a humming sound from their E90's transmission? I got this sound that is like a bearing spinning. It happens as about 60 kmh. I spoke with a BMW person from the factory and he informs me something about that being from the final drive. Says it depends on how much I can tolerate the sound level. Seems his own car has it and its just there. Anyone with any idea? Thanks!

 

[Aeroboy]

Hi guys ... anyone experienced having a humming sound from their E90's transmission? I got this sound that is like a bearing spinning. It happens as about 60 kmh. I spoke with a BMW person from the factory and he informs me something about that being from the final drive. Says it depends on how much I can tolerate the sound level. Seems his own car has it and its just there. Anyone with any idea? Thanks!

I've been complaining for mine that happens only at speeds after 110kph. Though some forumers have suggested I check the tires first. Haven't had the time yet. Will check this Friday.

Though the humming sound seems to send some very small level of vibrations through the accelerator pedal and steering and also seems to travel through the longshaft to the back.

Is yours a 325i e90 LCI?

 

[Jonz]

Is it wheel bearing/wheel hub issues?

I've been complaining for mine that happens only at speeds after 110kph. Though some forumers have suggested I check the tires first. Haven't had the time yet. Will check this Friday.

Though the humming sound seems to send some very small level of vibrations through the accelerator pedal and steering and also seems to travel through the longshaft to the back.

Is yours a 325i e90 LCI?

 

[climenta]

One of our members also had a whining problem on his E36, but I'm unsure if the same applies to the newer models like yours.

http://www.bmwclubmalaysia.com/forums/showthread.php?45519-Clutch-Bearing-for-E36-E30&highlight=

I had the same problem on my ride & from my experience trying to fix it, not many mechs know how to diagnose this problem. Hope this helps towards resolving your issue

 

[tIANcI]

Aeroboy ... yeah 325 E90 LCI ... its 100% not tyres, its a sweet ring. Metal for sure.

Jonz ... may not be a wheel bearing as once I take my foot off the pedal it stop or if I shift to neutral, so I do not think its a wheel bearing/hub issue.

climenta ... was that one a manual tranny? I will check with AB Glenmarie. This is really getting interesting.

Thanks guys!