cortschrothNJ

I have a 99 e320 4matic w/ the m112 and a 722.6, every once in a while ill pull up to a stop and the car will just stall out, it doesn't necessarily happen under any particular conditions, its done it hot/cold/full/empty/coming from high speed/coming from low speed/ect. basically Ive been trying to narrow down specific conditions that it happens but haven't been able to, no check engine light so i don't really think its a tcc solenoid or anything. Ill figure it out eventually but I was wondering if anyone's had a similar issue or if theres a usual cause for this. I have 123k on it and every things maintained, theres a small coolant leak from the pump, the ps lines leak a lil but otherwise every things primo.

Plutoe

Your problem is not having the diagnostic equipment, because most issues like yours are noted in the respective control units as events---those events can be read which helps the learned with diagnosing the problem.

On planet earth, without the tools that leaves you with the WGAF approach and knowing that I would start by testing the fuel pressure and fuel pump relay!!

FlatlineEF9

When I had a faulty MAF sensor my car would do this. Didn't throw a code either...which was strange.

cortschrothNJ

word up and good looks, i need to get my hands on a star scan tool or maybe just a good snap on n check it out cause both those sound plausible.

marc lenssen

Maf can be checked by unplugging it. Engine will run on standard mapping. If she then does not stall then you have found the culprit.
But a fresh fuel filter would not harm, cheap and easy trial.
And check the colour and state of the spark plugs, if any have a different colour from the erst you might just have a bad coil or some old or loose ignition leads.