ACC monovalve
Senior Member
Joined: May 2003
Posts: 332
Likes: 0
From: LI, NY
02 W163, 84 W123, 03 E39, 98 E39
Monovalve
By ACC monovalve I assume you mean the monovalve that dictates how much heated coolant water goes to the heater core and that regulates the amout of heat that comes out of your heater. I do not know your model specificaly, but from past experience:
On the passenger side of the engine compartment, mounted on the inside of the wheel well you will find an inline pump. the front side of this inline pump connects to the radiator/engine. The back side has about a 3/4 inch hose that goes back towards the firewall. Follow this hose as it will most likely terminate at your monovalve. The monovalves on my MB's have been mounted on the firewall itself, or inside the proteced area on the passenger side where they put the battery (if the battery is not in the trunk).
Good luck!
On the passenger side of the engine compartment, mounted on the inside of the wheel well you will find an inline pump. the front side of this inline pump connects to the radiator/engine. The back side has about a 3/4 inch hose that goes back towards the firewall. Follow this hose as it will most likely terminate at your monovalve. The monovalves on my MB's have been mounted on the firewall itself, or inside the proteced area on the passenger side where they put the battery (if the battery is not in the trunk).
Good luck!
