C250 CGI 2012 Idle Misfiring
Thread Starter
Newbie
Joined: Mar 2017
Posts: 1
Likes: 0
C250 CGI 2012
C250 CGI 2012 Idle Misfiring
Hello,
From almost 2 weeks, when i was accelerating on a highway, the Car start to shake & check engine light came on, Turn it off then back on the light is off and everything is good.
1 week later, i start the engine in the morning, the car start to shake and check engine light is on, but while driving it works fine.
After scanning it, it shows misfire on Cylinder 3 & 4, so the mechanic told me have to change coils and plugs and that what i did.
Second day in the morning when i start the engine, it shaked again and check engine light is on.
on the scanner it shows again misfiring Cylinder 3 & 4.
btw some times white smoke is off from the exhaust on the startup.
So please any help, on what might it be the problem ?
Regards,
From almost 2 weeks, when i was accelerating on a highway, the Car start to shake & check engine light came on, Turn it off then back on the light is off and everything is good.
1 week later, i start the engine in the morning, the car start to shake and check engine light is on, but while driving it works fine.
After scanning it, it shows misfire on Cylinder 3 & 4, so the mechanic told me have to change coils and plugs and that what i did.
Second day in the morning when i start the engine, it shaked again and check engine light is on.
on the scanner it shows again misfiring Cylinder 3 & 4.
btw some times white smoke is off from the exhaust on the startup.
So please any help, on what might it be the problem ?
Regards,
Newbie
Joined: Feb 2019
Posts: 2
Likes: 0
From: South Africa
2012 C250 CGI Coupe w204
Hello,
From almost 2 weeks, when i was accelerating on a highway, the Car start to shake & check engine light came on, Turn it off then back on the light is off and everything is good.
1 week later, i start the engine in the morning, the car start to shake and check engine light is on, but while driving it works fine.
After scanning it, it shows misfire on Cylinder 3 & 4, so the mechanic told me have to change coils and plugs and that what i did.
Second day in the morning when i start the engine, it shaked again and check engine light is on.
on the scanner it shows again misfiring Cylinder 3 & 4.
btw some times white smoke is off from the exhaust on the startup.
So please any help, on what might it be the problem ?
Regards,
From almost 2 weeks, when i was accelerating on a highway, the Car start to shake & check engine light came on, Turn it off then back on the light is off and everything is good.
1 week later, i start the engine in the morning, the car start to shake and check engine light is on, but while driving it works fine.
After scanning it, it shows misfire on Cylinder 3 & 4, so the mechanic told me have to change coils and plugs and that what i did.
Second day in the morning when i start the engine, it shaked again and check engine light is on.
on the scanner it shows again misfiring Cylinder 3 & 4.
btw some times white smoke is off from the exhaust on the startup.
So please any help, on what might it be the problem ?
Regards,
Thank you
