Operation CHARM: Car repair manuals for everyone.

Symptom Verification






Information and verification, temperature control

Symptom and function description
The climate control unit cools or heats as well as dehumidifies the air in the passenger compartment. The vehicle is equipped with either manual (A/C) or automatic climate control (ECC).

ECC (option)
The temperature selected corresponds to the physical experience with reference to the air speed, humidity, exposure to sun etc. which affect the interior and exterior of the vehicle.
For the air conditioning to work satisfactorily, the side windows and sun roof (if applicable) must be closed.

Location of the sensors
- The sun sensor is on top of the dashboard.
- The temperature sensor for the passenger compartment is behind the air conditioning (A/C) panel.

Hint: Do not cover or block the sensors with cloth or other objects

Acceleration
At full acceleration, the air conditioning (A/C) system switches off temporarily. You may feel a temporary temperature rise.

Ventilation hole in the parcel shelf
Do not block the luggage compartment's ventilation hole in the parcel shelf with cloth or other objects.

Verification
Access to the vehicle is necessary for the following checks.

Conditions
- Close the hood, doors, side windows and sun roof, if applicable.
- Start the engine.
- Engine speed should be approximately 1500 rpm.

Performance test
- Set the temperature control to max. cooling.
- Set the air distribution selector to "Ventilation".
- Set the recirculation button to "On".
- Set the A/C button to "On".
- Set the fan speed selector to 50 %.

Reading the temperature
Allow the system to stabilize for at least 8 minutes.
Place the thermometer by the central panel vents.
°°





Is the function OK?

Yes - No Fault Found

No - FAULT FOUND

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