My 83 300D sat for about 10 day's while we were on vacation. When I drove home from N.O. LA. I noticed a vibration when slowing down and accelerating beween 30 to 45 mph.This lasted for about 10 miles and gradually disappeard the further I drove. By time I got to B.R. LA. it was gone entirely. Could I have one or both flex couplings going bad? Thnks for your help.

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Keith Schuster
99 Harley Davidson Ultra Classic
97 Dodge Ram
83 300D
Heavy equipment\hydraulic mechanic 20 yrs

You may have something as simple as the tires that were flat spotting. Also, the center bearing support can settle, once warm, it is OK. I'd drive for a while and see how it does.

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Benzmac:
Donnie Drummonds
300E
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM

Thanks for the reply. I will try that. While on the subject of flex couplings. What kind of life span should they have? I dont know if these have ever been replaced. Being rubber I would not expect them to squeak like a U-Joint. Again thanks.

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Keith Schuster
99 Harley Davidson Ultra Classic
97 Dodge Ram
83 300D
Heavy equipment\hydraulic mechanic 20 yrs