kirver04

ml320 turns over but wont fire...after several tries it starts as if nothing is wrong...any ideas?

DWP

You mean, it does crank, but sometimes it doesn't start right away? Well, my first idea would be to post your question in the M-Class forum, but since the ML320 ignition and fuel system isn't all that different from an E320, maybe somebody here has an answer. I don't.

mleskovar

Common problem, same thing happened to me...CPS (crankshaft position sensor).

SAguirre

Since you have an ML320, I imagine that it is an older one and some did have a couple of stupid issues. There might be something totally different that is wrong with yours, but here is my guess:

Some early MLs had ignition issues where they would be hard to start, or they would start, but then stall right away.

*If it starts and then immediately stalled, one troubleshooting procedure was to take the key out, flip the key 180 degrees and then insert it again and give it a try. If the car worked, the problem is the key/tumbler. I cannot remember exactly what it was, but it is something with the theft deterrent. Sometimes a new key is all you need.

No E320 after 1998 can be compared to the ML since they had a "smartkey" after 1988 and the ML320s did not. The smartkey is a totally different ignition system than the ML of that vintage.

I hope this helps, but I would be willing to bet you that the ML320 forum will tell you immediately what it up.

Steve

lkchris

ML320 is a W163, not a W211!

Duce1942

Try to start and sometimes just clicks, wait 5 minutes and it will crank and start fine. all battery connections are ok and battery is strong. any thoughts??

homeofstone

Have the codes checked at an indie shop that works on Mercedes. My guess its the CPS or and bad battery cable not at where it connects.