CL 600 (216.376) V12-5.5L Turbo (275.953) (2007)
/v12-5.5l_turbo_(275.953)/Page-2320012.png)
hen the temperature is at a sufficient level, the AAC [KLA] control unit actuates the blower motor via the blower regulator.
Ventilation decision
During stationary ventilation only the blower is actuated in the vehicle.
The AAC [KLA] control unit actuates the blower motor via the blower regulator.
Depending on the interior temperature, a switchover from stationary heating to stationary ventilation and vice versa can be made.
Status indicator
The red indicator lamp in the STH button indicates stationary heating, and the blue lamp indicates stationary ventilation.
GF83.70-P-4200SX STH Control Unit, Component Description
GF83.70-P-4200SX STH Control Unit, Component Description
- with CODE (228) Stationary heater
Component Identification
Location
The STH control unit is integrated into the STH or HB heater unit (A6) on model 221 or into the STH control unit (A6) on model 216, which is located
in the rear area of the right wheel well
Task
The STH control unit regulates the STH heater unit's heater operation, thus heating the interior as programmed. It also monitors the components involved
