Catastrophic Failure due to oil sensors leak
Tedious job and I replaced the water pump and belt tensioners while I was in there. Just did the coolant feed line on the back of the left cylinder head and that was a challenging job given the lack of room and visibility.




scroll down in this thread for instructions. Post 2 has what I needed to get all the way to the cam covers/end caps. (thanks kennyed)
https://mbworld.org/forums/w212-amg/...ck-valves.html
Edited to say crap, were you just trying to remove the belt?
If you wind up removing the thermostat, there is an updated part, so be very careful, don't remove it if you don't have to. The updated part requires a new water pump (this only may be because I have a '13) YMMV. The plastic is brittle and fancy.
Last edited by Baltistyle; Jun 6, 2022 at 12:24 AM.




Last edited by Baltistyle; Jun 6, 2022 at 12:41 AM.
Tedious job and I replaced the water pump and belt tensioners while I was in there. Just did the coolant feed line on the back of the left cylinder head and that was a challenging job given the lack of room and visibility.
I was scared I’d drop a bolt from the vacuum pump into the abyss
Yes, when I pulled it apart, a few plastic pieces that surround the thermostat broke. The heat really does a number on the plastic pieces. I just pulled the rear coolant feed line valve and it came apart. It was just a matter of time before it let loose. It was a pain to get to, but I’m glad I got it done.
The plastic just deteriorated and it cracked on removal.
Here is what it looked like:
The Best of Mercedes & AMG
The plastic just deteriorated and it cracked on removal.
Here is what it looked like:




No
As far as the bolts, either put a phone down there and take a pic or go online and look at the part. I used a phone on video and going in a circle around it. I think I mentioned this issue, that wis was slightly off, as are the videos
if you’re in the area I can send you his contact info.
Last edited by dustinN; Jun 6, 2022 at 07:48 PM.





