My 89 300SEL's A/C does not seem to work properly. It's works well during the initial drive [morning start-up or when car has rested for serveral hours]. However, it fails to cool when the car is shut off and then restarted. Moreover, the A/C fails to cool whenever I adjust any of the push buttons or wheel.

Having read some of the posts on the forum, I am thinking that the recir. actuators are worn and need replacement. However, this is only a guess on my part.

Note that I have since repaired the mono valve. And the heating works well.

Are there any items that I can possibly check? Could it be the freon, compressor, vaccum, temp sensor???

Also, does anyone know how to get to the actuators and how many? I presume they may be behind the dash board or possibly the passenger air bag.

Any pointers will be greatly appreciated.

Regards.

Start with the basics and have the freon level checked.

__________________
Benzmac:
Donnie Drummonds
ASE CERTIFIED MASTER AUTO TECHNICIAN
MERCEDES SPECIALIST 11 YRS