I have two Mercedes - one is 2000 E320 Wagon; other is 1999 E320 Sedan.

I replaced the serpentine belt on my 2000 Wagon today at 92,000 miles. I found that the Motorcraft JK6-947 could be purchased on Ebay for $12.99 plus $6.20 shipping. The old belt was a Goodyear Gatorback 4060940. My 1999 sedan has a Mercedes Benz 011 997 97 92 6K2390 EM7117 Gates belt made in Spain.

Here are the details of replacing the belt.

On the 2000 E320, a 17 mm bolt just under the belt going to the tension pulley will release the belt tension when turned counterclockwise. Removal of the belt was easy after using a 17 mm deep socket wrench similar to a spark plug socket. I made turning the bolt very easy by slipping a 4' pipe over the socket wrench handle. It is advisable to put the new belt LAST on the idler pulley that contacts the belt only on the smooth side.

You do not need todisturb theButton Torx bolt in the center of the tension pully.

The 1999 E320 uses a 15 mm bolt in the CENTER of the tension pulley. Otherwise the installation is the same as the 2000 E320.

Hope this helps.
Trivett

 

Can you please show a picture?

 

The first exhibit shows the bolt (You will see lablel A when you click on the picture) to turn to relieve the belt tension. The tension pulley is just above and to the right of the bolt.
The second exhibit shows the pulley (the one with the copper colored bolt in the center)that is to be the last pulley to put the belt on.
Click on the second image and you can clearly see the last pulley to attach the belt. Also you may identify the tension pulley as the one to the right of theprinting of the belt numberon the belt.

Hope this helps.

[IMG]local://upfiles/22756/056D2F4FF8004DB48C0E2FF7B99A1FCB.jpg[/IMG]

[IMG]local://upfiles/22756/00F6FC6F761A43E0995667C790D0A823.jpg[/IMG]

 

trivett,
Thank you very much for the picture.

 

Once you have replaced the belt, what do you do to re establish the tension? Turn the bolt the other way?

 

The belt is installed while you hold the counter-clockwise tension on the bolt. When the belt is installed, just slowly release the tension on the wrench and the original tension is restored.

 

Pics not working for me....can you repost. I have a 1996 E320 with the 15mm tensioner adjust bolt. Thanks

 

I cannot see these images. Only their path.