Parts Catalog Accessories Catalog Tech Info Tech Forums
  Search our site:    
 Cart  | Project List | Order Status | Help    

Go Back   PeachParts Mercedes ShopForum > Technical Information and Support > Tech Help

LinkBack Thread Tools Display Modes
Old 12-08-2001, 03:50 PM
Posts: n/a
squealing Serpentine belt

My serpentine belt on my 91 300 E 4-matic started squeeling during start up-when it is cold out-it usually stops in under a minute-I was able to con my ex into taking a look at it..He is a jaguar collecting, Audi driving, MB hater-HOWEVER-for a stock broker he is a darn good mechanic.....He feels the belt is loose, and told me if I could find out where the tightening point is, he would fix it for me (we were in my cold driveway, not his heated garage) Question-where is this part located? AND I did a search under belts-does my car have a belt tensioner-and if so, should I have it replaced at this time? car has 211,000 miles on it...Thanks for any help you can give me!
Reply With Quote
Old 12-09-2001, 02:30 AM
Registered User
Join Date: Dec 2000
Posts: 368
Yes, your car does have a tensioner. It's located right next to the water pump.
First of all, check the condition of the belt. To check the tensioner the first thing you should do is remove fan shroud (much easier). Next, locate the main bolt in the middle of the tensioner (19mm, I think). Loosen the bolt about I complete revolution. Now locate the tensioning nut (13mm) on top of the tensioner, next to the water pump (it sticks out vertically). To tighten tensioner turn bolt clockwise to loosen turn counterclockwise. Pay attention to the tension indicator on main bolt and the lines on the tensioner housing. Make sure not to over tighten. Once you set the tension tighten main bolt.
If you can't tighten the belt you tensioner is probably busted. The rubber in between the middle and the tensioner housing breaks loose and no matter how much you tighten nothing happens.

Good luck,
Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Serpentine Belt: Designed to leave you stranded? Ron in SC ML, GL, G-Wagen, R-Class, Unimog, Sprinter 7 08-26-2004 02:22 PM
89' 190e Serpentine Belt Diagram akacali Tech Help 1 05-10-2004 04:04 PM
300SDL belt squealing bhatt Tech Help 1 03-17-2003 03:15 PM
Alternator and serpentine belt install..Success!!! G-Benz Tech Help 8 10-08-2001 05:13 PM
Questions on serpentine belt on 202 (94 C280)... hancheng Tech Help 5 08-16-2001 11:42 AM

All times are GMT -4. The time now is 12:18 PM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2011 Pelican Parts - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page