P0303?
Thread Starter
Newbie
Joined: Nov 2015
Posts: 12
Likes: 0
2004 C240
P0303?
Hey:
My 2004 Mercedes C240 has the CEL come on probably once a month and turns off within a day or two with a code P0303.
I know what the code is and plan to change the plugs this weekend.
My question is why do you think it only happesn every so often and turn off within couple days?
Thanks
My 2004 Mercedes C240 has the CEL come on probably once a month and turns off within a day or two with a code P0303.
I know what the code is and plan to change the plugs this weekend.
My question is why do you think it only happesn every so often and turn off within couple days?
Thanks
Junior Member
Joined: Feb 2019
Posts: 18
Likes: 2
W203 M271 2004 C200
I have exactly the same issue, engine start to vibrate and after some minutes the CEL come on. After shut off-on the care back to normal. The CEL will disappear after couple days by itself. The OBD shows P0303 Cylinder 3 misfire detected and I clear it and it didn't appeared again. Seems to me as spurious ECU behavior. any suggestion?
