Strange vibrations | W211 | M271 | 722.6
11-02-2015, 08:02 AM
#1
Newbie
Thread Starter
Join Date: Oct 2015
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Mercedes Benz W211, M271
Strange vibrations | W211 | M271 | 722.6
Hello everyone,
very nice forum- it's really pleasure for me to be here
unfortunately I have also an issue with my Benz.
I know this engine (M271) is not so popular in US, but maybe you will have an advise for me what I could try
Problem description:
Strange vibrations, when slowing down. It happens almost always when I stopp the car- whathever gear is engaged- 1st or 2nd (depending on if driving on S/C). When the vibrations are observed, the rpm's go down for a while (once I stopp completely the idle is stable but the vibrations are still there).
What has been done so far:
- tranny oil flush Fuchs Titan 4134
- tranny mount replacement
I am not sure if the engine vetilation hoses are OK. I managed to check two of them and they seem to be ok, but the one which is very close to the kompressor I couldn't.
Any suggestions? It's really annoying issue.
Many thanks in advance.
very nice forum- it's really pleasure for me to be here
unfortunately I have also an issue with my Benz.
I know this engine (M271) is not so popular in US, but maybe you will have an advise for me what I could try
Problem description:
Strange vibrations, when slowing down. It happens almost always when I stopp the car- whathever gear is engaged- 1st or 2nd (depending on if driving on S/C). When the vibrations are observed, the rpm's go down for a while (once I stopp completely the idle is stable but the vibrations are still there).
What has been done so far:
- tranny oil flush Fuchs Titan 4134
- tranny mount replacement
I am not sure if the engine vetilation hoses are OK. I managed to check two of them and they seem to be ok, but the one which is very close to the kompressor I couldn't.
Any suggestions? It's really annoying issue.
Many thanks in advance.
Last edited by m271_w211; 11-02-2015 at 08:08 AM.
11-02-2015, 04:41 PM
#2
MBWorld Fanatic!
Have you replaced your engine mounts? Those 4 cylinder engine naturally vibrate alot. A lot more the a V-block or straight 6. I am not sure but if i'm not mistaken the 271 motor doesn't have a balance on the back of the block to help with the vibrations. I think the newer 4 cylinder t/c motors do though.
11-03-2015, 02:11 PM
#3
Newbie
Thread Starter
Join Date: Oct 2015
Posts: 2
Likes: 0
Received 0 Likes
on
0 Posts
Mercedes Benz W211, M271
cmriv, thanks a lot for your reply and the advice.
actually I didn't replace the engine mounts, but will check them.
today I checked both flex discs- both are bad, there are big cracks and will replace them, not sure if they could cause suchintermittent vibrations, any idea?
actually I didn't replace the engine mounts, but will check them.
today I checked both flex discs- both are bad, there are big cracks and will replace them, not sure if they could cause suchintermittent vibrations, any idea?
