M275 Missfire Problems continues
Thread Starter
Junior Member
Joined: Sep 2015
Posts: 15
Likes: 0
W204 C200 OM651 ED125 / W215 CL600 M275
M275 Missfire Problems continues
Hello Everyone. I fighting with missfire on my W215 CL600 with M275 engine. In short what I have done it:
- replaced two ignition coils
- replaced ignition voltage transformer
- replaced spark plugs
- checked fuel pressure around 3.8-4 bars
- replaced one O2 pre cat sensor
- replaced pressure sensors upstream and downstream of throthle body
I am having random missfires on cylinders 10,8,7,6,5,2
The most affected cylinder is number 10. Missfires are happening straight after engine start. Engine is running rough and you can feel it shaking. When you drive it seems to be smooth unless you will try to push it hard then you will get check engine light and engine is running very rough. Restart usually helps. What else can cause the missfire? Can it be injectors, bad fuel filter? Engine has around 60 000/70 000 miles and we have the car since 7 years. It hasn't been abuse and always service every 6 000 miles or once a year.
- replaced two ignition coils
- replaced ignition voltage transformer
- replaced spark plugs
- checked fuel pressure around 3.8-4 bars
- replaced one O2 pre cat sensor
- replaced pressure sensors upstream and downstream of throthle body
I am having random missfires on cylinders 10,8,7,6,5,2
The most affected cylinder is number 10. Missfires are happening straight after engine start. Engine is running rough and you can feel it shaking. When you drive it seems to be smooth unless you will try to push it hard then you will get check engine light and engine is running very rough. Restart usually helps. What else can cause the missfire? Can it be injectors, bad fuel filter? Engine has around 60 000/70 000 miles and we have the car since 7 years. It hasn't been abuse and always service every 6 000 miles or once a year.
Member
Joined: Dec 2007
Posts: 171
Likes: 26
From: Maryland
2007 S550 & 2009 CL63 AMG & 2009 BMW 328i Convertible
Hello Everyone. I fighting with missfire on my W215 CL600 with M275 engine. In short what I have done it:
- replaced two ignition coils
- replaced ignition voltage transformer
- replaced spark plugs
- checked fuel pressure around 3.8-4 bars
- replaced one O2 pre cat sensor
- replaced pressure sensors upstream and downstream of throthle body
I am having random missfires on cylinders 10,8,7,6,5,2
The most affected cylinder is number 10. Missfires are happening straight after engine start. Engine is running rough and you can feel it shaking. When you drive it seems to be smooth unless you will try to push it hard then you will get check engine light and engine is running very rough. Restart usually helps. What else can cause the missfire? Can it be injectors, bad fuel filter? Engine has around 60 000/70 000 miles and we have the car since 7 years. It hasn't been abuse and always service every 6 000 miles or once a year.
- replaced two ignition coils
- replaced ignition voltage transformer
- replaced spark plugs
- checked fuel pressure around 3.8-4 bars
- replaced one O2 pre cat sensor
- replaced pressure sensors upstream and downstream of throthle body
I am having random missfires on cylinders 10,8,7,6,5,2
The most affected cylinder is number 10. Missfires are happening straight after engine start. Engine is running rough and you can feel it shaking. When you drive it seems to be smooth unless you will try to push it hard then you will get check engine light and engine is running very rough. Restart usually helps. What else can cause the missfire? Can it be injectors, bad fuel filter? Engine has around 60 000/70 000 miles and we have the car since 7 years. It hasn't been abuse and always service every 6 000 miles or once a year.
Did you replace the coil packs with new or used?
Thread Starter
Junior Member
Joined: Sep 2015
Posts: 15
Likes: 0
W204 C200 OM651 ED125 / W215 CL600 M275
Senior Member
Joined: Feb 2005
Posts: 254
Likes: 17
From: America
CL600 2003
I had a similar problem, read here
https://mbworld.org/forums/m275-v12-...elaration.html
https://mbworld.org/forums/m275-v12-...elaration.html
Thread Starter
Junior Member
Joined: Sep 2015
Posts: 15
Likes: 0
W204 C200 OM651 ED125 / W215 CL600 M275
I had a similar problem, read here
https://mbworld.org/forums/m275-v12-...elaration.html
https://mbworld.org/forums/m275-v12-...elaration.html
Engine missfire just after start is well.
Last edited by ktos92; Apr 18, 2019 at 01:16 AM.
Member
Joined: Jul 2017
Posts: 127
Likes: 14
From: San Juan PR
SL55 CL600 and 335D (rip flood) 325ci
First thing I did to my 2003 v12 was to order both coil packs from V12icpack and one of them gave out. I'm sure it was installer issues but still. See if Clark can get you another coil.
