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1989 Mercedes Benz 300D
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6 Posts
Discussion Starter #1
When I release the clutch after changing gears on a 1989 300D 6cyl diesel that i intent to buy, there is a judder / shudder from the differential. Also, when the car is sufficiently off the block (say, 40kmph in 3rd gear and beyond), there is a booming sound from the rear.
What could these be? A packed up differential? Loose CV joints? No lubrication in the differential?
The car was lying garaged for the past 3 years and has only recently been brought on the road. Any and all help will be grateful, especially since I am planning to put my hard earned money into this car. In India, they don't come as cheap as elsewhere in the world!
Thanks in advance!
 

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Timeship, see you yesterday, but you already knew that.
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4,103 Posts
Flex disk's.
 

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W124 Moderator
86 190E 2.3L 16V, 2 95 320TE's, 02 S500
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12,756 Posts
Yes, that is a flex disc. It is what connects the output shaft of the transmission to the driveshaft and driveshaft to the differential (rear end). Before purchasing this car, it would do you no harm to have it inspected by a dealer/MB specialist shop. In addition to the possible problem being flex disc, it could also be a worn clutch disc and throw out bearing. Pay the $$ for a PPI (pre-purchase inspection) and minimize the "surprise" factor.

Good Luck

Jayare
 

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1989 Mercedes Benz 300D
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6 Posts
Discussion Starter #6
Thanks Jayare for the valuable info. Such forums are Godsends for people like us!
I also experienced a sort of booming noise when the car was in motion, especially when my foot was on the accelerator. As much as I could figure out, it was coming from the rear. Could this be connected to the above problems as well?
In any case, I will have to get the entire tranny checked at a MB service centre. What's nice about the car is that despite its age, there is no rust anywhere, everything is in order and working properly and the engine ticks away as smoothly as single malt whiskey.
Will report after getting it checked, after a couple of days.
 
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