Mercedes w211 w219 OEM Heater Control Valve GENUINE heating water solenoid coolant selenoid Heater Control Valve (Solenoid Valve) Mercedes part# 211 832 05 84, check fit below. Genuine Mercedes part, recently made: not been lying around. NOTE: This is for the valve only. You should also replace the 3 O-rings for it, and 8 wiper cowl clips (which will break when removed). See our store for the complete KIT if desired.