Idler and Tensioner Change
Thread Starter
Senior Member
Joined: Oct 2004
Posts: 308
Likes: 0
From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
Idler and Tensioner Change
Thought at 90k it'd be a good time to change out my idler/tensioner/belt.
Little did I know that my idler was cracking and my tensioner was no longer spinning smoothly.
Here's a pic of my idler next to the new one. Scary!
All in all fairly simple job.
The scariest part is holding the tensioner tensioned with a pin so that you can gain access to the bottom torx bolt. Scary since there's quite a bit of tension locked up there.
Little did I know that my idler was cracking and my tensioner was no longer spinning smoothly.
Here's a pic of my idler next to the new one. Scary!
All in all fairly simple job.
The scariest part is holding the tensioner tensioned with a pin so that you can gain access to the bottom torx bolt. Scary since there's quite a bit of tension locked up there.
Thread Starter
Senior Member
Joined: Oct 2004
Posts: 308
Likes: 0
From: Honolulu, Hawaii
2001 E55, 2002 ML55, 2002 SL500, 2003 CLK55
Don't forget to check your tensioner too.
Might be in bad shape given the condition of the idler.
