SLK 230 (170.449) L4-2.3L SC (111.983) (2001)
Heater Control Valve: Locations
Duo Valve
Component Identification
The duovalve (Y21) is located on the right at the rear of the engine compartment.
Heater Control Valve: Locations
Duo Valve
Component Identification
The duovalve (Y21) is located on the right at the rear of the engine compartment.