A/C Components Inside Passenger Compartment, Left Side
A/C Components Inside Passenger Compartment, Left Side
1 Left Front Seat Temperature Sensor (G344) and Left Front Heated Seat (Z45)
• Seat heater is not installed in all vehicles (optional equipment).
• When the seat heater is activated, is displayed in the Climatronic control module (J255) measured values block. Refer to Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding" function.
2 Diagnostic Connection
• Perform On Board Diagnostic (OBD) on heating system using Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding" function.
3 Defroster Vent/Left Side Window
4 Instrument Panel Vent, Left
• Removing and installing instrument panel vents, refer to=> [ Instrument Panel Vents ] Instrument Panel Vents and (Instrument Panel).
5 Instrument Cluster Control Module (J285)
• With the outside air temperature display (G106).
• The Instrument Cluster Control Module (J285) evaluates the measured value of the Outside Air Temperature Sensor (G17) and then transmits it via the Comfort databus system to the Climatronic control module (J255). Check using Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding" function.
6 Outside Air Temperature Display (G106)
• The Outside Air Temperature Display is a component of the Instrument Cluster Control Module (J285).
• Measured value of Outside Air Temperature Sensor (G17) is evaluated by Instrument Cluster Control Module (J285) and transmitted via Comfort CAN-Bus system to the Climatronic control module (J255). Check using Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding" function.
• If temperature display is incorrect, check temperature sensor measured value using Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding" function.
7 Left Center Instrument Panel Vent
• Removing and installing instrument panel vents, refer to=> [ Instrument Panel Vents ] Instrument Panel Vents and.
8 Instrument Panel Vent, Center
• Removing and installing instrument panel vents, refer to=> [ Instrument Panel Vents ] Instrument Panel Vents and.
9 Right Center Instrument Panel Vent
• Removing and installing instrument panel vents, refer to=> [ Instrument Panel Vents ] Instrument Panel Vents and.
10 Climatronic Control Module (J255)
• Versions vary (for vehicles with or without seat heater, allocation, refer to the Electronic Parts Catalog (ETKA).
• 5-cylinder vehicle may only have heater controls, part number 8J0 819 043 starting with index "D". Refer to Electronic Parts Catalog (ETKA) and Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding" function.
• Starting with model year 2011, heating system control heads-part number 8J0 819 043, beginning with index "H"-shall be gradually installed. These control modules possess an added function for the expanded change indicator that is part of the efficiency indicator for the on-board computer. Therefore, no heating system control head with part number 8J0 819 043 up through index "G" may be installed in a vehicle containing an expanded change indicator in the on-board computer. Refer to Electronic Parts Catalog (ETKA), Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding" function and the owner's manual.
• Removing and installing, refer to=> [ Climatronic Control Module (J255) ] Description and Operation.
• There is no Instrument Panel Interior Temperature Sensor (G56) and no Interior Temperature Sensor Fan (V42) installed in the Climatronic control module.
• Also observe additional notes for Climatronic control module. Refer to=> [ Climatronic Control Module (J255) ] Description and Operation.
• On Board Diagnostic (OBD) of Climatronic control module (J255) is to be performed as described in Guided Fault Finding using Vehicle diagnosis, testing and information system (VAS5051B) in the "Guided Fault Finding" function.
• The buttons and rotatory switches have LEDs, they cannot be replaced individually.
• The function and indicator lights in the buttons and in the rotary knobs cannot be replaced separately.