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E46 M3 (2001-2006)

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  #1  
Old 10-19-2013, 09:50 PM
chauscon chauscon is offline
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Location: Australia
 
Join Date: Nov 2011
Posts: 6
Mein Auto: M3 Convertible
Grinding and dronning noise from the Diff

Any advice on how to quiet the grinding and droning noise from the diff in a 2004 m3 with 145,000 klms . I live on the Gold coast in Queensland Australia and don't know where to take it to have it assessed. I have had the diff oil changed 3 weeks ago with the Castrol recommended product, but , I feel the noise is still getting louder. I have put in into neutral and coasted and listened and then back into gear and the gearbox adds to the noise only marginally. HELP.
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  #2  
Old 11-08-2013, 04:56 PM
chauscon chauscon is offline
Registered User
Location: Australia
 
Join Date: Nov 2011
Posts: 6
Mein Auto: M3 Convertible
The Nangkang tire conundrum

After having the car in at the specialists we where left with the thought a rear wheel bearing had collapsed...maybe. Replace both sides I said to the mechanic and left it at that. Well they stripped it down and the bearings where perfect...so as a test they put another set of rear tyres on it from another M3 and Voila, no more noise. So off to the tyre guys and new Potenza P 001s and the car is PUURFECTT again. The insides of the Nangkangs was all ridgy even tho they had 80% of their tread still on....what a pain.
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