Headlight switch off delay function

Headlamp delayed switch-off

Function requirements

 Function activated via instrument cluster (A1)

 Engine switched off

 Rain/light sensor (B38/2) signals "Darkness"

 With  and  vehicles, the headlamp switch-off delay (SWA) only becomes active if the rotary light switch (S1) is in the "Auto" position.

Function

After switching off the engine, left front fog lamp (E5/1), right front fog lamp (E5/2), left license plate lamp (E19/1) and right license plate lamp (E19/2) are switched on for a period of approx. 60 s.

The opening of a door, of the tailgate or of the rear-end door causes the function sequence to restart. Once all doors are closed again, the function is triggered again for approx. 15 s.

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The information "SWA active" is sent to the instrument cluster by the driver-side SAM control unit with fuse and relay module (N10/1).

Actuations

 The driver-side SAM control unit with fuse and relay module actuates the left front fog lamp.

 The front passenger-side SAM control unit (N10/11) actuates the right front fog lamp.

 With model 211.0, the rear SAM control unit with fuse and relay module (N10/2) actuates the license plate lamps.

 With model 211.2, the rear-end door control unit (N111) actuates the license plate lamps.

Function abort

 Circuit 15C ON

 Triggering of an alarm by the anti-theft alarm system (ATA [EDW]) (with code (551) Anti-theft alarm system (ATA [EDW]))

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Security illumination

Function requirements

 Function activated via instrument cluster

 Rain/light sensor signals "Darkness"

 Rotary light switch in "Auto" position
(with  and  vehicles)

Function

When unlocking the vehicle using the transmitter key (A8/1), the standing lamps function is activated for a period of approx. 40 s. Additionally, the front fog lamps and the license plate lamps are switched on.

Function abort

 Circuit 15C ON

 Driver door opened

Actuations

 The driver-side SAM control unit actuates the left standing and parking lamp (E1e3) and the left front fog lamp.

 The passenger-side SAM control unit actuates the right standing and parking lamp (E2e3) and the right front fog lamp.

 With model 211.0, the rear SAM control unit actuates the following components:
- Outer left taillamp, parking lamp, rear fog lamp (E3e2)
- Inner left taillamp, rear fog lamp (E3e5)
- Outer right taillamp, parking lamp, rear fog lamp (E4e2)
- Inner right taillamp, rear fog lamp (E4e5)
- License plate lamps

 With model 211.2, the rear SAM control unit actuates the following components:
- Left stop lamp, taillamp and parking lamp (E3e9)
- Right stop lamp, taillamp and parking lamp (E4e9)

 With model 211.2, the rear-end door control unit actuates the license plate lamps.