Heating element, rear window (115)
| Heating element, rear window (115) |
| Main task |
For fast electric window heating during cold-weather starts.
4D, 5D: The circuit is also used for FM reception.
| Type |
The electrically-heated rear window consists of several wires which conduct electricity and are glued to the glass.
| Connect |
Electrically heated rear window, 4D
The heating coil receives voltage B+ from REC pin 2 (electrically-heated rear window relay) through the antenna amplifier and is connected to ground through an antenna filter which blocks the antenna ground signal.
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Pin no.
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Signal type
|
Description
|
| 2 | Power supply B+ | From the REC control module |
Electrically heated rear window, CV
Electrical heating coil is supplied with voltage B+ from REC pin 9(B3) (relay, electrically heated rear window).
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Pin no.
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Signal type
|
Description
|
| 9(B3) | Power supply B+ | From the REC control module |
Radio reception, 4D/5D
The antenna signal is received and fed to the antenna amplifier. In order that the antenna signal should not interfere with the heating coil power supply, the amplifier contains a filter which blocks the antenna signal. The heating coil ground side contains an antenna filter which blocks the antenna signal from ground.
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