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Leon_S
05-06-2008, 11:11 AM
okay..this only happens at around 60-70 km/h. My car makes a humming noise. I can't really figure out exactly where the noise is coming from. But it's definately from the rear. If I have to guess, I'd say it's coming from the middle rear. Can anyone plese tell me what should I focus on? can bad diff fluid be the culprit?

sillycar
05-08-2008, 11:21 AM
if you have access to a hoist, check the driveshaft flex disc or the rubber guibo

usually within 4 years that rubber detriorates

sillycar
05-08-2008, 11:22 AM
oops thought you had a bmw, iono about the noise then almost every car vibrates at a certain speed because balancing the tires is so tough