Operation CHARM: Car repair manuals for everyone.

Heater Control Valve: Service and Repair

Removing and Installing Monovalve

Removal
1. Drain approx. 2 liters of radiator coolant.

Heater Valve:





Heater Valve Disassembly:





2. Loosen all hose clips on water valve.
3. Pull off heater hoses and disconnect both wires.
4. Remove screw and remove water valve from firewall.

Installation
Install in reverse order.