GF83.57-P-2000PC | Temperature control function | 23.10.06 |
MODEL 203.0 /2 /7 up to 31.5.01 with CODE (580) Air conditioning (or Tempmatic for USA)
MODEL 203.0 /2 /7 as of 1.6.01
with CODE (580) Automatic air conditioning
up to Model Year 8
MODEL 203.0 /2 /7 as of 24.4.04
except CODE (581) Comfort automatic air conditioning
up to Model Year 8
P83.40-3006-09
Temperature control
A1 Instrument cluster
B10/6 Evaporator temperature sensor
B14 Outside temperature display temperature sensor
B31/2 Air humidity sensor (up to 28.6.06)
M2/5 Fresh air/air recirculation flaps actuator motor
N70 Overhead control panel control unit
N70b1 In-car temperature sensor
(up to 31.5.02 and as from 1.6.05)
CAN Controller area network bus class B (interior compartment) (CAN B)
KB A/C bus
M2/6 Left blend air flap actuator
M2/7 Right blend air flap actuator
N10/1 Front SAM control unit with fuse and relay module
N22 AAC [KLA] control and operating unit
N22b1 In-car temperature sensor
The electronically controlled cooling, heating and ventilation system of the automatic air conditioning (AAC [KLA]) achieves the desired interior temperature as quickly as possible or holds it at a constant value by:
the evaporator cooling the air
the heating system heat exchanger heating the air
On vehicles from 1.6.02 to 31.5.05, the interior temperature is detected solely by the in-car temperature sensor (N22b1) in the AAC [KLA] control and operating unit (N22).
Heating mode
The in-car temperature sensor (N22b1) or the in-car temperature sensor (N70b1) measure the interior temperature. The outside temperature is recorded by the outside temperature indicator temperature sensor (B14).
The electronic control of the AAC control and operating module (N22) compares the various measured values with the temperature preselected at the temperature selector wheels.
As required, the position of the blend air flaps is either altered or kept constant via the left blend air flap actuator motor (M2/6) and the right blend air flap actuator motor (M2/7).
Cooling mode
The evaporator temperature sensor (B10/6) detects the air temperature at the evaporator's air outlet, the in-car temperature sensor (N22b1) or the in-car temperature sensor (N70b1) detects the interior temperature.
The outside temperature is measured by the outside temperature display temperature sensor (B14) and the air humidity by the air humidity sensor (B31/2) (up to 28.6.06).
The electronic control of the AAC control and operating module (N22) compares the various measured values with the temperature preselected at the temperature selector wheels.
As required, the position of the blend air flaps is either altered or kept constant via the left blend air flap actuator motor (M2/6) and the right blend air flap actuator motor (M2/7).
Control and operating unit for automatic air conditioning, location/task | On vehicles up to 23.4.04 | ||
On vehicles as from 24.4.04 without code (581) Comfort automatic air conditioning | |||
Actuator motors for automatic air conditioning, location/task/function | |||
Heating system heat exchanger, location/task/function | |||
Heater water circulation pump, location/task/function | In vehicles with code (450) Taxi version or code (670) Residual engine heat utilization system (REST [MRA]) | ||
Evaporator location/task/design/function | |||
Expansion valve, location/task/design/function | |||
Air conditioning coolant temperature sensor location/task/function | |||
Refrigerant pressure and temperature sensor location/task/function | |||
Refrigerant compressor, location/task/design/function | |||
Refrigerant compressor control valve location/task/function | |||
Evaporator core temperature sensor, location/task/function | |||
Outside temperature sensor, location/task/function | On vehicles up to 23.4.04 | ||
In vehicles as of 24.4.04 | |||
Air humidity sensor, location/task/design/function | In vehicles up to 28.6.06 | ||
Overhead control panel control unit, location/task/design |
Referenced documents
- gf8220p4110a Overhead control panel control module, location/task/design
- gf8320p2108p Heating system heat exchanger, location/task/function
- gf8320p2109p Heating water circulation pump, location/task/function
- gf8330p2125p Air humidity sensor, location/task/design/function
- gf8340p2121p Evaporator location/task/design/function
- gf8340p2123p Expansion valve, location/task/design/function
- gf8340p2155p Air conditioning coolant temperature sensor location/task/function
- gf8340p2171p Refrigerant pressure and temperature sensor 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
- gf8340p2182p Actuator motors for automatic air conditioning, location/task/function
- gf8355p2100p Refrigerant compressor, location/task/design/function
- gf8355p2102p Control valve, location/task/function
- gf8357p2109p Evaporator core temperature sensor, location/task/function
- gf8357p2110p Outside temperature sensor, location/task/function
- gf8357p2110pp Outside temperature sensor, location/task/function