Daytime running lights

With the knob for headlamp control in position, and the car's electrical system in key position II or the engine running, the daytime running lights are activated automatically in daylight.

Daytime running lights during the day. DRL

P4-1320 Light Switch Module with AUTO-position

Knob for headlamp control in AUTO position.

With the knob for headlamp control in position the daytime running lights (Daytime Running Lights - DRL) are activated automatically when the car is driven in daylight. A light sensor on the top of the instrument panel changes from daytime running lights to dipped beam at twilight or when daylight becomes too weak. Switching to dipped beam also takes place when the rear fog lamps are activated.


This system help to save energy - it cannot determine in all situations when daylight is too weak or sufficiently strong, e.g. in mist and rain.

The driver is always responsible for ensuring that the car is driven with the correct beam pattern for the traffic situation and in accordance with applicable traffic regulations.

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