3309412 - E3030 HEATED REAR WINDSCREEN AND DOOR MIRROR DEFROSTING - Description

Description

The rear window heater element, door mirror demister coils and the windscreen heater element absorb a considerable amount of energy. they must therefore be turned off once they have been working for a certain period of time.The system for demisting the rear window and door mirrors and heating the windscreen is controlled by a timer. The procedure is as follows.

The system is turned on with:

• with the key in the MAR position
• activation signal from the relevant button, located on the climate control system control panel.

Coils are activated for 60 minutes, then the power supply is cut off.

The power supply is also cut off under the following conditions:

• ignition in STOP position;
• deactivation signal from the relevant button;
• after the first 10 seconds of operation, if engine speed drops below 1000 rpm.

The led stays on as long as the back window heater element is activated.The control software is managed by the Check device located beside the junction unit (the climate control system panel houses only the control button and led, but does not affect the activation software in any way).The back window/door mirror demister and windscreen heater circuit is protected by a special fuse and controlled by a specific relay. These are located on the fuse and relay bracket on the right hand side of the luggage compartment.The door mirror and windowscreen coils are protected by another fuse located on the right hand side of the luggage compartment next to the fuse and relay described previously.