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Old 03-10-2001, 03:38 AM
Murray Blackwood
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1991 190E 2.3 Litre, travelled only 88,00k's (55,000 miles).
Is there anyone that can advise what to do about a whining
differential, mainly on the over-run (trailing throttle) at 30mph and 60mph.
No excessive back lash between the pinion and crown wheel. Have tried 10% "Morays" additive to the diff oil without any improvement.
The whine spoils an otherwise perfect car.
I have been advised that this is not an uncommon problem with the 2.3 litre engine model. Any comments much appreciated.

Murray Blackwood.
New Zealand.
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Old 03-10-2001, 08:23 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Once a diff has a whine to it the gears establish a pattern & that pattern won't go away. Either ring & pinion replacement or a complete diff replacement is the way to rid your car of that noise!! Heavy grease will mask the noise sometimes but can cause bearing damage.
MERCEDES Benz Master Guild Technician (6 TIMES)
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190E 2.3 16V ITS SCCA race car (sold)
1986 190E 2.3 16V 2.5 (sold)
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Old 03-11-2001, 03:52 AM
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Join Date: Jun 2000
Location: Dubai, United Arab Emirates
Posts: 238
Murray....My 93 2.0l 190E had a diff whine after about 20000 kms on the clock. I lived with it till I sold the car with about 90000 kms on iy. It was just as you described, usually on the overrun, I just learned to live with it. Curiously though, the other 2 cars I now have run smooth and sweet !
1993 190E 2.0L (Euro.) sold
1991. 500 SEL (Euro.)
1991. 300 CE (Euro.) sold
1993. 500 E (U.S. spec.)
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