manzana
New Registration
Hi all,
I got a 2002 CLK320 and it has an issue with stalling when starting cold. It also sporadically stalled driving on the motorway with the same symptoms.
The engine starts but it dies off when started from cold and being unused for a day or two. After repeated trials (3 up to 15 sometimes) it finally will keep rotating. When stalling on the motorway it needed a few trials as well to make it run again.
As seen in video:
https://youtu.be/M_xyv_Yrtto
[YOUTUBE]https://youtu.be/M_xyv_Yrtto[/YOUTUBE]
OBD reader gives a code P0403 and I had the mechanic replace the EGR valve but the code and the problem remains unfortunately. I am unsure whether he cleaned up the EGR tube hovewer. Also the MAF sensor has been cleaned too.
Could anyone please give me any ideas what could be the problem from the symptoms? Is there a point in investigating further the EGR (checking wires and tube) or do symptoms point towards other issues?
Thank you!
I got a 2002 CLK320 and it has an issue with stalling when starting cold. It also sporadically stalled driving on the motorway with the same symptoms.
The engine starts but it dies off when started from cold and being unused for a day or two. After repeated trials (3 up to 15 sometimes) it finally will keep rotating. When stalling on the motorway it needed a few trials as well to make it run again.
As seen in video:
https://youtu.be/M_xyv_Yrtto
[YOUTUBE]https://youtu.be/M_xyv_Yrtto[/YOUTUBE]
OBD reader gives a code P0403 and I had the mechanic replace the EGR valve but the code and the problem remains unfortunately. I am unsure whether he cleaned up the EGR tube hovewer. Also the MAF sensor has been cleaned too.
Could anyone please give me any ideas what could be the problem from the symptoms? Is there a point in investigating further the EGR (checking wires and tube) or do symptoms point towards other issues?
Thank you!
Last edited: