Re: [MBZ] Possible FI Problem - '91 300D 2.5T

[Peter Frederick]

Definitely possible-- an injector stuck open will do that, although it 
won't "pool" fuel while sitting.  The fuel won't be properly atomized 
and will not ignite in a cold engine (hence the smoke).

Injector service is about the cheapest thing you can do here, so don't 
wait.

You can check the oil immediately for fuel, no need to wait.

Peter