1998 MB W210 E300TD, AC flaps not working properly and are looking for a Vac Leak to the AC Vac Block under the dast behind the glove box.
But need info on main vac line that feeds this vac block from the engine compartment. Where is this line. Would like to test prior to going into or removing dash. Flap test fail. Do not tell me it is the duo valve.
would like to find vac diagram for this system thanks.