1. Engine coolant level too low

2. Coolant does not circulate correctly: thermostat valve operating incorrectly

1.Restore the correct level checking that there are no leaks

Op. 0010T84 COOLANT FOR AIR CONDITIONING SYSTEM - DEHYDRATE AND REPRESSURIZE

See table K025 ENGINE COOLANT TEMPERATURE GAUGE NOT WORKING

For versions with automatic climate control;

With the engine on and the compressor off, in manual mode with the temperature knob at the maximum hot HI position.

Also set the recirculation button to the closed position and set the fan speed to 6 bars (display) and the distribution to front ventilation. Use the diagnostic tester to check that the engine temperature reaches at least 70 °C.

Check that the air temperature at the front distribution outlet is greater than 60 °C.

For versions with manual climate control;

With the engine on and the compressor off, in manual mode with the temperature knob at the maximum hot HI position.

Also set the recirculation button to the closed position and set the fan speed to the 3rd setting and the distribution to front ventilation.

Use the diagnostic tester to check that the engine temperature reaches at least 70 °C.

Check that the air temperature at the front distribution outlet is greater than 60 °C

For versions with automatic climate control;

Connect the diagnostic equipment and check:

- that there are no errors at the air mixing actuators;

- that there are no faults in the engine temperature sensor

1. Short circuit error at the air mixture actuators

2. Error in the engine temperature sensor

1. Move on to Step 3

2. Continue as described by the diagnostic equipment

For versions with manual climate control;

Connect the Examiner diagnostic equipment and check that there are no errors in the engine temperature sensor

Check the mixture kinematic components are working properly

1.Error in the engine temperature sensor

2.Check the mixture kinematic components are working properly

1. Continue as described by the diagnostic equipment

2. Restore the correct operation of the mixture kinematic components

For versions with automatic climate control;

Check whether the electrical wiring connections are loose:

Disconnect and check for damage in the connector contacts/reconnect the connection to the actuator.

Check the continuity/insulation of the electrical connection:

- of the air mixing actuator/s

- the connection on the control unit

1. Electrical connections loose or damaged

2. Electrical connection broken or not insulated

1. Renew the electrical connections

See E6020 AIR CONDITIONING

2. Restore the continuity/insulation of the electrical connection

See E6020 AIR CONDITIONING

For versions with automatic climate control;

Check for persistent errors in the air mixer actuators

For versions with automatic climate control;

Visually check the correct operation of the mixer actuator from the climate control unit temperature control knob.

Check whether the control on the control unit is interrupted by checking the electrical continuity

See Test 5040DH SEQUENTIAL PROCEDURE FOR CHECKING MIXTURE AND DISTRIBUTION ACTUATOR OPERATION

1. Incorrect operation of actuator

2. Physical impediment to the rotation of the flap

3. Incorrect operation of actuator from control on climate control system control unit

1. Replace the mixture actuator

Op. 5040D94 AIR CONDITIONING LEFT UPPER AIR DISTRIBUTION FLAP MOTOR (DEFROST) - R.R

and/or

Op. 5040D96 AIR CONDITIONING RIGHT UPPER DISTRIBUTION FLAP MOTOR (DEFROST) - R.R

2. If possible, restore the correct operation of the flap, otherwise replace the distributor unit

3. Replace the climate control system control unit

Op. 5040D14 CONTROL UNIT WITH AUTOMATIC AIR CONDITIONING CONTROL PANEL - R.R.

1. Flap travel incomplete

2. Flap damaged

3. Kinematic mechanism damaged

1. Release the air mixture actuator flap from the impediment 2. Replace the flap

3. Repair kinematic mechanism