Benz 190e 1992 , when it is cold ,car dies when i strat to drive

Go to the following link and the first photo shows the belt routing. I hope this helps as I know changing the belts on these vehicles can be a major pain in the neck.
Pelican Mercedes Benz Tech Article Mercedes Benz Drive Belt Replacement...

1) Reset the ignition timing.
2) see the diagram and troubleshooting guide.

so then whats the problem

The stop leak has most likely clogged the heater core. Or the blend door for the HVAC isnt working in the dash anymore. Either way a big job to fix them.

sounds like your choke is stuck

This is for the 1990 190e 2.6. That's as new as my software goes. It may be the same, but I'm not absolutely sure.

it may be a faulty relay

check your airfilter. your dirt road is killing it much faster than driving it on pavement

Lift the hood. Just below the screen, opposite side from battery, you'll see a plastic cover shielding the engine management, abs control box etc. If you search around there after removing the shield/ cover you will find a relay with a fuse plugged into the top of it. This is the pump / system relay.

Cheers John

you would need to get all the wiring harness, computers, mounts and accsecories but it can be done -jeff please rate