Folks,

Thanks for the great opportunity.

I have a 1979, 450 SLC, 4.5Ltr, V-8, Auto. with 98K original miles.

When the car is cold, but not necessarily cold outside, the engine will start immediately, then begin to idle @ 1500RPMS or more until it warms up.

Now, I had a 1974 SLC that I bought brand new in 1973, and I never remember having to wait while the engine warmed @ 1500RPMS

I have tried to solve this with multiple mechanics and even called Mercedes Benz in New Jersey, and the comment I got was "maybe timing?"

I do not know much about cars, but otherwise, the car runs like new.

Thanks,

RB