300SL (129.061) L6-3.0L (104.981) (1991)
Air Door Vacuum Solenoid Valve: Service and Repair
Glovebox
remove.
Switchover valve strip/block (Y11)
unclip.
3-pin connector
detach.
Both locking lugs (arrow)
push to the side and detach vacuum connection plate.
Install
in reverse order.