Om646 - is this normal?
Thread Starter
Junior Member
Joined: Sep 2019
Posts: 73
Likes: 46
From: Reading, UK
2003 E55 AMG
Om646 - is this normal?
Just a quick question, some advice wanted 
So I've had a c200 CDI (2006) for a year now, however it has been in the family since 2012.
Ever since I can remember however, it's been extremely loud, most noticibly, there's a tapping/clicking noise coming from what appears to be the rear of the engine (4th cylinder). I've ran numerous bottles of injector cleaner through the system over the course of a year, to no avail. The engine is very clean, no smoke whatsoever, even under a lot of load.
ive also checked the front belt, yes the tensioner is a bit wobbly, but I can easily distinguish that noise from the tapping that's really loud.
The tapping noise occurs regardless of engine temp, however it is a bit louder when cold.
Any ideas as to what this could be?
So I've had a c200 CDI (2006) for a year now, however it has been in the family since 2012.
Ever since I can remember however, it's been extremely loud, most noticibly, there's a tapping/clicking noise coming from what appears to be the rear of the engine (4th cylinder). I've ran numerous bottles of injector cleaner through the system over the course of a year, to no avail. The engine is very clean, no smoke whatsoever, even under a lot of load.
ive also checked the front belt, yes the tensioner is a bit wobbly, but I can easily distinguish that noise from the tapping that's really loud.
The tapping noise occurs regardless of engine temp, however it is a bit louder when cold.
Any ideas as to what this could be?
Thread Starter
Junior Member
Joined: Sep 2019
Posts: 73
Likes: 46
From: Reading, UK
2003 E55 AMG
Spoiler
link to video in spoiler (mbworld seems to mess up Google photos URLs!
Replace the '*******' with "goo . gl"
Last edited by rnd_ash; Mar 21, 2020 at 01:00 PM. Reason: Link broken
