The vacume assist for the front passenger door on my 94 S320 is inoperable. No vacume pump noise or action, at all, from this door. All other closures work just fine. Any ideas?
Thanks

try to reset the pump, go to the trunk and pull the fuse #9. wait a minute or so, then reinsert, see if it works after that, if it does there may be a minor leak, either in the pump internally, or on the car somewhere, or the pump may be defective.
the pump may be shutting off that circuit, to prevent overheating,

Thanks, I'll give it a try.