Hi,
I have an 86 300E. Lately, I have been noticing that the car when cold will start fine most of the time. Sometimes it will not catch the first time and start perfectly the second time. More importantly though, I noticied after it has been running a bit, warmed and I stop it and after it cools a bit, when I restart it, it will start quite roughly and proceed to diesel idle for about 5 seconds then smooth out. This is a consistent trend. Any ideas? Idle cotrol valve or cold start valve?

Thanks for your help.

Regards,
Mark