My W124 1989 300 TE 4matic starts immediately when cold, when it gets to operating temp it stumbles and runs poorly , missing on some cylinders and then stops completely with sometimes a backfire and exhaust smoke in the engine compartment, it will then refuse to start until it cools down.
When I try to start it will fire sometimes on some cylinders but strangely the wipers did one sweep without the switch being on when the battery was losing its charge after persisting in turning the starter ! anybody had the ame or know how to cure it ? Thanks

should be 124, have a 123 thats running fine