M137 CSO valves not working as they should
#1
Super Member
Thread Starter
Join Date: May 2021
Location: Netherlands
Posts: 532
Received 139 Likes
on
127 Posts
CL 600 '00 5.8L V12
M137 CSO valves not working as they should
Lately I've had some issues with the cylinder shutoff valves. When the cylinders shut down, the valves create an awful noise before going silent. I'm not sure if the latter is related to the car turning the cylinders back on, or if they finaly fall into place.
A video of the noise is attached below.
I've turned off ZAS for now, since that solves my problem, but as gas prices are sky high, I'd like to turn it on again 😂
A video of the noise is attached below.
I've turned off ZAS for now, since that solves my problem, but as gas prices are sky high, I'd like to turn it on again 😂
The following users liked this post:
biker349 (03-02-2022)
#2
Super Member
Thread Starter
Join Date: May 2021
Location: Netherlands
Posts: 532
Received 139 Likes
on
127 Posts
CL 600 '00 5.8L V12
Update; I did some research on ZAS, and when looking at mbepc.net I discovered the following:
https://mbepc.net/1/fg/cl/68s/215378/0/80/032
The ZAS system is operated by a vacuum system. I've got vacuum leaks on my car and ZAS is not working.
1+1=2?
ZAS was working flawlessly before and now it isn't anymore.
https://mbepc.net/1/fg/cl/68s/215378/0/80/032
The ZAS system is operated by a vacuum system. I've got vacuum leaks on my car and ZAS is not working.
1+1=2?
ZAS was working flawlessly before and now it isn't anymore.
The following users liked this post:
biker349 (03-02-2022)
The following users liked this post:
biker349 (03-02-2022)
#4
Super Member
Thread Starter
Join Date: May 2021
Location: Netherlands
Posts: 532
Received 139 Likes
on
127 Posts
CL 600 '00 5.8L V12
I turned it off, to test if the rattleling issue went away, which it did.
Then the car ran perfectly smooth, so I turned it back on and it started to rattle again. So I turned if off again and then I came across that diagram
Then the car ran perfectly smooth, so I turned it back on and it started to rattle again. So I turned if off again and then I came across that diagram
The following users liked this post:
biker349 (03-02-2022)