Help C32 does not start
Thread Starter
Junior Member
Joined: Mar 2003
Posts: 35
Likes: 0
From: Minneapolis MN
'03 C32 LET Stage I
Help C32 does not start
My 03 C32 with 104K miles is refusing to start. It cranks and trys to fire up but does not start. Had the same issue a couple of weeks ago but started after sitting for a while. It started but was missing badly and CEL came back with misfire on multiple cylinders. Ended up replacing the plug wires (had replaced spark plugs not wires a few weeks before) and all was good, ran smooth and started with no issues.
Now after 2 weeks I have the same problem again but no codes are stored. I just checked fuel pressure and came back with around 55 PSI while cranking, so I don't think it's a fuel starvation issue. I have ordered a new CPS and will be replacing it but am not sure if that will solve the issue. I think CPS usually fails when hot and engine does not fire at all. My issue is when the car is cold and it does try to fire up just does not stay started.
Don't know what else to look for and need help on troubleshooting. Any advise is greatly appricaited.
Now after 2 weeks I have the same problem again but no codes are stored. I just checked fuel pressure and came back with around 55 PSI while cranking, so I don't think it's a fuel starvation issue. I have ordered a new CPS and will be replacing it but am not sure if that will solve the issue. I think CPS usually fails when hot and engine does not fire at all. My issue is when the car is cold and it does try to fire up just does not stay started.
Don't know what else to look for and need help on troubleshooting. Any advise is greatly appricaited.
Member
Joined: Jan 2013
Posts: 241
Likes: 1
From: Edmonton
2003 C32 AMG
Check fuse number 48 for the motor electronics under the hood.
I had this fuse blow on my C32 and the engine would crank but would never start because the fuse was blown.
Check to see if this fuse is in tact!! It will cause a no start condition similar to what you are experiencing
I had this fuse blow on my C32 and the engine would crank but would never start because the fuse was blown.
Check to see if this fuse is in tact!! It will cause a no start condition similar to what you are experiencing
MBWorld Fanatic!
Joined: Mar 2004
Posts: 2,073
Likes: 27
From: North NJ
2002 C32 AMG, 2013 GLK 350/4, 2015 E63S AMG Wagon
