CEL misfiring after installing pulley, pump and
Thread Starter
Member
Joined: Jan 2010
Posts: 96
Likes: 1
c63s
CEL misfiring after installing pulley, pump and
This is for G55 but I have heard both cars share same engine so I thought about posting here due to more active members in w211 section
the car has about 70k mile on it and was running smoothly. I did pulley, filter, pump and ECU tune. Drove the car for three weeks with no issue. I took it to dealer for service then on my way home after about 20 mile car went under power and was not performing well. I turned the car off and back on, all went to normal but CEL still on.
I took car to dealer again and it shows that there was misfiring in cylinder #4. they cleared it and changed all spark plugs. Drove the car for almost same distance and same problem happened again.
Back to dealer, same issue and same cylinder. We tried to switch coils and same problem happened.
I would highly appreciate your feedback if you have faced such an issue. I was told by some friend it could be the brand of spark plugs or the gap distance on them
thank you
the car has about 70k mile on it and was running smoothly. I did pulley, filter, pump and ECU tune. Drove the car for three weeks with no issue. I took it to dealer for service then on my way home after about 20 mile car went under power and was not performing well. I turned the car off and back on, all went to normal but CEL still on.
I took car to dealer again and it shows that there was misfiring in cylinder #4. they cleared it and changed all spark plugs. Drove the car for almost same distance and same problem happened again.
Back to dealer, same issue and same cylinder. We tried to switch coils and same problem happened.
I would highly appreciate your feedback if you have faced such an issue. I was told by some friend it could be the brand of spark plugs or the gap distance on them
thank you
MBWorld Fanatic!
Joined: Jan 2004
Posts: 7,092
Likes: 13
From: Salt Lake City (but not Morm)
2003 E55 & 2014 GL550
"Took it to the dealer for service" seems to jump right off the page at me. Sounds like a reflash back to stock. Did you tell them straight up DON'T flash this car......not one time!!???
Thread Starter
Member
Joined: Jan 2010
Posts: 96
Likes: 1
c63s
I didn't mention that to them but I did load the modified file to the car after i picked up the 2nd time.
Thread Starter
Member
Joined: Jan 2010
Posts: 96
Likes: 1
c63s
Trending Topics
Super Member
Joined: Oct 2009
Posts: 661
Likes: 3
From: Saudi Arabia - Qatif
Brabus K8 E55 05
Check your injectors cable and functioning. If I were you I would throw it in the stealer, get a good car from them to use till fix the issue. This is the time where you use the money you paid for the stealer, hammer them and call big manager coz i know that in the gulf they tend to don't care until you take it to higher level.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Thread Starter
Member
Joined: Jan 2010
Posts: 96
Likes: 1
c63s
Check your injectors cable and functioning. If I were you I would throw it in the stealer, get a good car from them to use till fix the issue. This is the time where you use the money you paid for the stealer, hammer them and call big manager coz i know that in the gulf they tend to don't care until you take it to higher level.
Former Vendor of MBWorld
iTrader: (1)
Joined: May 2008
Posts: 12,139
Likes: 295
From: Houston
2003 W211 E55, 2003 W220 S600
no to be rude but if you dont know what a compression test is, i think you sHould take it to a indy mechanic and ask him to do one on all 8 cylinders
http://www.youtube.com/watch?v=9U8iNb21arw
http://www.youtube.com/watch?v=9U8iNb21arw
Last edited by shardul; Dec 1, 2011 at 02:38 PM.
Super Member
Joined: Oct 2009
Posts: 661
Likes: 3
From: Saudi Arabia - Qatif
Brabus K8 E55 05
Ok, do you know what AFR your tune run? What tune do you use? Did you floor the car many times? The things you did should not trigger a CEL. When got the CEL, how the car behave? I mean engine, on idle or while driving, normal? shaking a little bit? when you give gentle push up to 3 rpm while on gear is on and you raise the rpm slowly and gently, does the engine shake a little bit? i mean when you are inside the car, do you feel some shaking?
