Heated windscreen
The heated windscreen (HFS) is switched on using the button when the ignition key is at position 2 and the engine is running. When the heated windscreen is switched on, the telltale lamp in the switch lights up. To switch off the heated windscreen, the switch must be pressed once again.
At temperatures above 10°C, the heated windscreen runs for 3 minutes. At temperatures below 10°C, the timer runs for 5 minutes.
During a start, the heated windscreen function is interrupted. The telltale lamp remains on. The heated windscreen is switched on 2 seconds after the start.
Note:
On cars with integrated automatic heating / air conditioning system, the rear window heating and the heated windscreen are activated with single a button.
Inputs and outputs
Inputs and outputs for the central body electrical system for the heated windscreen:
Inputs |
Outputs |
Heated windscreen switch (fixed wiring to central body electrical system in cars without integrated automatic heating / air conditioning system) |
Heated windscreen element via central body electrical system and relay |
Heated windscreen switch (via K bus to central body electrical system in cars with integrated automatic heating / air conditioning system) |
The telltale lamp (fixed wiring to central body electrical system in cars without integrated automatic heating / air conditioning system) |
|
The telltale lamp (via K bus to central body electrical system in cars with integrated automatic heating / air conditioning system) |