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#1
11-25-2003, 06:58 PM
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W210 E300 belt question
A few months ago I replaced my belt tensioner and belt because the tensioner was rattling. Now, the same rattle is back and the belt is now squeaking as if there is insufficient tension. By tensioner I am refering to the blach shoch-like looking component.
Bad tensioner? Should I have replaced something else while I was in there?
__________________
1996 (W210) E300D 86K - Traded in for a Lexus 1992 (W124) 300D 2.5 Turbo 202K - Sold 1983 (W123) 300D, 146K - Sold 1970 280S, 263K - Sold - Beginning of addiction 
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#2
11-26-2003, 12:06 PM
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Did you replace the black shock or the metal spring in the rubber
sleeve? Dr.D
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#3
11-26-2003, 12:34 PM
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The shock absorber only dampens the belt deflection. The Spring keeps the correct tension on the belt.
Sounds like you need another shock & a new spring.
__________________
MERCEDES Benz Master Guild Technician (6 TIMES) ASE Master Technician Mercedes Benz Star Technician (2 times) 44 years foreign automotive repair 27 Years M.B. Shop foreman (dealer) MB technical information Specialist (15 years) 190E 2.3 16V ITS SCCA race car (sold) 1986 190E 2.3 16V 2.5 (sold) Retired Moderator
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#4
11-26-2003, 01:14 PM
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Thanks, guys. I replaced the black shock because that is what was rattling. I assumed that it got tired.
Could the shock start rattling because the spring is bad?
__________________
1996 (W210) E300D 86K - Traded in for a Lexus 1992 (W124) 300D 2.5 Turbo 202K - Sold 1983 (W123) 300D, 146K - Sold 1970 280S, 263K - Sold - Beginning of addiction
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#5
11-26-2003, 11:30 PM
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Yup, the spring will kill the shock. Too much belt tensioner
movement for the dampner to handle. Replace them both. DR.D
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#6
12-28-2003, 10:17 PM
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Well, I replaced the spring and shock yesterday. The belt is still making a whistling/squeaking noise!! The belt itself looks practically new - about 60K on her.
What do you guys think?
__________________
1996 (W210) E300D 86K - Traded in for a Lexus 1992 (W124) 300D 2.5 Turbo 202K - Sold 1983 (W123) 300D, 146K - Sold 1970 280S, 263K - Sold - Beginning of addiction
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