1979 300D. Just awoken after 28 years in storage. 6,000 original miles!
Hi everybody- I need some help trying to narrow my search for the dreaded vacuum leak. The front and back locks on the driver's side lock and unlock just fine, but the passenger side locks only and will not go up/unlock. If I unlock the doors using the driver master and give the passenger lock a little lift assistance, it will go up/unlock. Seems like weak vacuum to unlock the passenger side locks. Any suggestions where I can narrow my search?