Component Location Overview - Components Outside Of Passenger Compartment, Front Component Group "2"
NOTE:
Depending on the engine version to support the engine coolant pump an After-Run Coolant Pump - V51- / Heater Support Pump -V488- may be installed (different designations depending on the engine) (not shown in this illustration). Refer to COOLING SYSTEM/COOLANT (Connection Diagram for Coolant Hoses) and applicable SYSTEM WIRING DIAGRAM(S). The After-Run Coolant Pump -V51- / Heater Support Pump -V488- can be actuated in "stop mode" (engine stopped) to maintain the coolant flow rate through the heater core for the heater on with a cold engine or on vehicles with a Start/Stop System.
- Outside Air Temperature Sensor -G17-
- The measured value is evaluated by the Vehicle Electrical System Control Module -J519- and is transmitted to the Climatronic Control Module -J255- /A/C Control Module -J301- (the Heater Control Module -J65-) control head via the data bus.
- To check. Refer to Vehicle Diagnostic Tester in the "Guided Fault Finding" function. Refer to applicable SYSTEM WIRING DIAGRAM(S).
- Removing and installing. Refer to Outside Air Temperature Sensor -G17-, REMOVING AND INSTALLING .
- Right Water Drain
- Checking. Refer to PLENUM CHAMBER WATER DRAIN, CHECKING .
- Fresh Air Intake
- Prevents foreign objects (such as leaves) from entering the A/C unit intake shroud
- Make sure it is seated properly
- Removing and installing. Refer to FRESH AIR INTAKE, REMOVING AND INSTALLING .
- Nut
- 3 Nm
- Nut
- 3 Nm
- Screw
- 3 Nm
- Fresh Air Intake Cover
- Removing and installing. Refer to FRESH AIR INTAKE COVER, REMOVING AND INSTALLING .
- Air Quality Sensor -G238-
- Only with an automatic climate control system
- Function mode. Refer to Air Quality Sensor -G238- FUNCTION .
- Checking. Refer to Air Quality Sensor -G238-, CHECKING .
- Removing and installing. Refer to Air Quality Sensor -G238-, REMOVING AND INSTALLING .
- Screw
- 3 Nm
- Left Water Drain
- Checking. Refer to PLENUM CHAMBER WATER DRAIN, CHECKING .