After several stops at various locations here in Fort Lauderdale my 01 CLS Auto runs very rough on start up and needs 15 - 45 seconds to get a smooth idle. This is after several stops and the car has sat for 5 minutes or more. It reaches a point where I have to feather the throttle to get it to run at idle.

This happens only after the car has been run for a while and the symptoms are not as severe in the cooler weather this time of the year.

Any suggestions??

 

iacv