Examination
1. Power to the fan is supplied through the ignition switch and fuse (refer to Chapter On-board electrical equipment). The circuit is closed by the fan thermal switch, which is installed on the left side of the radiator.
2. If the fan does not work, first check the fuse. Start the engine, warm it up to normal operating temperature and let it idle. The fan should come on within a few minutes (before the pointer moves to the red part of the scale or the coolant temperature indicator light comes on). If this is not the case, turn off the ignition and disconnect the wiring connector from the fan switch. Connect the two connector pins with a jumper wire and turn on the ignition. If the fan now works, the switch is faulty and should be replaced.
3. If the fan still does not work, make sure the voltage in the power cord matches the battery voltage; if this is not the case, the supply wiring is damaged. If the supply part of the circuit is in good condition, check the resistance between the negative terminal of the switch and the ground point on the body. If the current does not pass, the ground connection contact is defective.
4. If the switch and wiring are OK, the fan motor is damaged. To check this, disconnect the wiring harness from it and apply 12V to the motor.
Removal
1. Disconnect the ground cable from the battery (on Scenic models, refer to Chapter Engine electrical equipment).
2. Where necessary, disconnect the power steering fluid reservoir and move it away from the fan.
3. On models with air conditioning, loosen and remove the mounting bolts and nuts and separate the filter drier reservoir from the rear of the radiator.
Warning! Do not disconnect the refrigerant pipes. Refer to the precautions given in Section General Description and Precautions - Air Conditioning System.
4. Disconnect the wiring connector from the fan motor and move the wires away from the fan shroud (refer to the accompanying illustration).
5. Loosen and remove the bolts securing the fan shroud to the rear of the radiator, then remove the assembly from the engine compartment.
6. If necessary, remove the mounting bracket/unscrew the mounting screw (depending on the model) and remove the fan impeller from the motor shaft. Disconnect the motor and remove it from the casing. If the motor is faulty, replace it as the motor cannot be repaired.
Installation
1. Perform installation in reverse order, paying attention to the following:
- a) Before installation, inspect the fan shroud fasteners and replace them if worn or damaged.
- b) Ensure that the electrical wiring is routed correctly and secured with all staples and ties.
- c) Install the radiator as described in Section Removal, inspection and installation of the radiator.