I forget which model this is --W123 look for cracks in the main vacuum
line, it tends to get brittle where all the hoses connect and nothing
will work properly.
A bad brake booster will also cause fits from low vacuum, but they
seem to be fairly rare on a Benz (unlike my Dodge Aries).
Cracked plastic lines are an issue, so is the valve that runs the
whole locking system on the driver's door. Ditto for punctured
diaphragms in the lock actuators (these used to be available, a bit
fiddly to put in, but works like new then).
Get the ol MitiVac out and start testing connections and servos,
vacuum reservoirs (three, I think, on the W123), and so forth.
Peter
_______________________________________
http://www.okiebenz.com
For new and used parts go to www.okiebenz.com
To search list archives http://www.okiebenz.com/archive/
To Unsubscribe or change delivery options go to:
http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
