560sl Defrost Flaps

According to my repair cd, in order to replace the vacuum servo that operates the defrost flap... you must remove the "instrument panel."

Can I get around this by going through the instrument pod and the glove box? How many servo's must I replace to get the defrost flaps to close when I'm not using the defrost button? How many defrost flaps are there?

Any help is greatly appreciated.

Michael B

[joe p]

I haven't tried this but, according to my info the "defroster flap closed" element is more or less to the right of the cluster towards the top of the box. My info as tells you to remove the dash pad. I'd pull the cluster and look right, if you see it, manually close it and see if the air stops from the defroster. Then you know you have it. Keep in mind that this flap is naturally open and other vacum leaks will cause it to open, check the system correctly first.

The switchover valves are behind the glove box according to my info for a 89 107 chassis.
#2 center flap
#1 legroom flap
#3 defroster flap
#4 recirc flap elements (the most common failure)

vacum supply in is to the side of it, according to my pic, it comes in beside #2, the outputs are seperated from each other unlike the supplys.


Joe