Quote:
Originally Posted by mike519
Has anyone else experienced diff whine in their M240i? I picked mine up in July and there was no whine at that time. I have almost 11,000km (6,500 miles) on it now and I am hearing a definite diff whine when I get the rpm up beyond 3,000 and it gets louder the higher I go.
No its not turbo noise and no, not from the engine. There is a possibility its in the gearbox (6spd) but I'm 90% certain its diff.
I had diff noise in my 2006 Z4M that I cured with some Royal Purple fluid. Thought about trying that but didn't want to start messing with the fluid if it might affect warranty.
I will likely just bring it in to the dealer but I know how they roll..."we couldn't really hear much...nothing we can do about it". They won't replace a diff for a whine that isn't ear piercing I'm sure. Now, if I could convince them to swap it for the LSD inc some cash on my end...
Anyway else get diff whine?
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Well if it's the gearbox put it in neutral at speed and see if you still hear the noise. If you do then it's not the gearbox