GF83.75-P-2110RI Coolant Circulation Pump Component Description

GF83.75-P-2110RI Coolant Circulation Pump Component Description

Component Identification:

Location
The heater circulation pump is located at the front right between the wheel well and bumper.

Task
The heater circulation pump is used for support when the engine is running or, when the residual heat mode is switched on (without code (494) USA version), it pumps coolant through the heater heat exchanger.

The AAC [KLA] control and operating unit (N22) transmits the switch-on request via the interior CAN to the front passenger SAM control unit (N10/11). This actuates the heater circulation pump.