Residual engine heat utilization function · gf8375p2000p · Mercedes-Benz WIS

GF83.75-P-2000P

Residual engine heat utilization function

11.5.06

MODEL 203.0 /2 /7 up to 31.5.01 with CODE (581) Automatic air conditioning

MODEL 203.0 /2 /7 as of 1.6.01
with CODE (581) Comfort automatic air conditioning
up to Model Year 8

MODEL 203.0 /2 /7
with CODE (450) Taxi version
with CODE (670) Residual engine heat utilization system (REST [MRA])
up to Model Year 8

Function

Residual engine heat utilization enables the vehicle to be heated even when the ignition is OFF.

To do so, the residual engine heat utilization system uses the residual heat from the engine and routes it into the passenger compartment via the blower motor (A32m1). The residual engine heat utilization is only possible when the ignition is switched off.

After pressing the REST button on the HEAT [HAU] control and operating unit (N18) or the AAC [KLA] control and operating unit (N22) (with code (450) Taxi version or with code (670) Residual engine heat utilization system (REST [MRA]) or at the comfort AAC (C-AAC [K-KLA]) control and operating unit (N22/7) the following program sequence is specified:

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 Blend air flaps controlled

 Coolant circulation pump (M13) ON

 Blower motor (A32m1) automatically supplied with a control voltage of 30 %

 Defroster and footwell flaps are automatically adjusted for approx. 30 seconds

 Activated charcoal filter flap open (no activated charcoal filter operation possible in vehicles with comfort AAC (C-AAC [K-KLA]) control and operating unit (N22/7))

 Footwell flaps 100 % OPEN

 Defroster vent flaps 66 % OPEN

 Fresh air vents 20 % open

 Fresh air and air recirculation flap in fresh air position

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End of program

 Repeated actuation of REST button

 Expiration of the time function of approx. 30 min. (repeated actuation possible)

 When battery voltage is less than 11 V, the LED on the REST button flashes on and off

 Ignition On

 During residual engine heat utilization only the REST button and the set point adjusters can be actuated, all other function keys are locked.

Heating pushbutton control unit, location/task	For vehicles without code (580) Air conditioning (or Tempmatic for USA) or without code (580) Automatic air conditioning or without code (581) Automatic air conditioning or without code (581) Comfort automatic air conditioning	GF83.20-P-2120PP
Control and operating unit for automatic air conditioning, location/task	For vehicles up to 31.5.01 with code (580) Air conditioning (or Tempmatic for USA) or as from 1.6.01 up to 23.4.04 with code (580) Automatic air conditioning	GF83.40-P-2180PP
	On vehicles as from 24.4.04 without code (581) Comfort automatic air conditioning	GF83.40-P-2180PQ
Comfort automatic air conditioning control and operating unit, location/task	On vehicles up to 31.5.01 with code (581) Automatic air conditioning or as from 1.6.01 up to 23.4.04 with code (581) Comfort automatic air conditioning	GF83.40-P-2181PP
	On vehicles as of 24.4.04 with code (581) Comfort automatic air conditioning	GF83.40-P-2181PQ
Actuator motor automatic heater, location/task/function	For vehicles up to 23.4.04 without code (580) Air conditioning (or Tempmatic for USA) or without code (580) Automatic air conditioning or without code (581) Automatic air conditioning or without code (581) Comfort automatic air conditioning	GF83.25-P-2180P
Actuator motors for automatic air conditioning, location/task/function	For vehicles up to 31.5.01 with code (580) Air conditioning (or Tempmatic for USA) or as from 1.6.01 with code (580) Automatic air conditioning or as from 24.4.04 without code (581) Comfort automatic air conditioning	GF83.40-P-2182P
Actuator motors for comfort automatic air conditioning, location/task/function	On vehicles up to 31.5.01 with code (581) Automatic air conditioning or as from 1.6.01 with code (581) Comfort automatic air conditioning	GF83.40-P-2183P
Blower motor, location/task/function		GF83.10-P-2140P
Heating system heat exchanger, location/task/function		GF83.20-P-2108P
Heater water circulation pump, location/task/function		GF83.20-P-2109P

Referenced documents

gf8310p2140p Blower motor , location/task/function
gf8320p2108p Heating system heat exchanger, location/task/function
gf8320p2109p Heating water circulation pump, location/task/function
gf8320p2120pp Heating pushbutton control unit, location/task
gf8325p2180p Automatic heater actuator motors location/task/function
gf8340p2180pp Control and operating unit for automatic air conditioning, location/task
gf8340p2180pq Control and operating unit for automatic air conditioning, location/task
gf8340p2181pp Control and operating unit comfort automatic air conditioning location/task
gf8340p2181pq Control and operating unit comfort automatic air conditioning location/task
gf8340p2182p Actuator motors for automatic air conditioning, location/task/function
gf8340p2183p Actuator motors for comfort automatic air conditioning, location/task/function