How do you replace belt tensioner?
Thread Starter
Junior Member
Joined: Jul 2005
Posts: 60
Likes: 0
How do you replace belt tensioner?
The tensioner pulley went bad on my S430. How do you replace the tensioner?
How many bolts are there? I ordered the part. Any advice would be very helpful.
thanks
How many bolts are there? I ordered the part. Any advice would be very helpful.
thanks
Super Member
Joined: Feb 2007
Posts: 809
Likes: 74
From: Dallas, TX
2008 E63 wagon (1 of 62)
The tensioner is held on by 2 bolts.. You need to remove the belt and lock the old tensioner in the position the new one comes in using something like a skinny bolt or small metal rod.. An old allen key works well also. Once you get both bolts off, its just falls off and you can install the new one.. The 2 bolts holding it to the front of the engine are E12 (female torx) if I remember correctly..
