Electrically Heated Front Seats

To check the heating pads (insufficient heat)

Note: When checking the passenger seat, the seat switch must be closed.

1. Disconnect the connector through which power is supplied to the heating element.






2. Switch on the ignition and check that the supply to the connector is live. Use a test lamp.






3. If the supply to the connector is live, check the circuits in the seat cushion and backrest as follows: Connect a buzzer to the seat connector. Cool the thermostat by spraying aerosol refrigerant onto it. If the circuit is in good condition but the seat still fails to warm up, the heating wires may be too close to the thermostat. If the heating wires are too close to the thermostat:
4. Remove the seat from the car. Release the seat cushion cover by removing the clips at the bottom edge, the tensioning spring on the right-hand side of the seat and the bottom tensioning spring. Raise the seat cover so that the thermostat will be accessible.






5. Heating pads on netting: Adjust the distance between the heating wires and the thermostat to 6-7 mm. Secure the wires with thread, for instance. If necessary, use impact adhesive to secure the heating pad in position. Heating pads on foam plastic. The heating wires should be 8-10 mm from the thermostat. Carefully cut away the foam plastic around the thermostat. Carefully lift off the wires which are too close to the thermostat and move them so that they are 8-10 mm from the thermostat. Use repair patch (10)9551227 to secure the wires.
6. Refit the seat cover and fit the seat back into the car.
7. Connect the connector and check the performance of the heating pad.