Checking trailer lights*
Checking trailer lights*
Automatic check
After connecting a trailer electrically, it is possible to ensure that the lights on the trailer are working by means of automatic light activation. This function helps the driver to check that the lights on the trailer are working prior to departure.
Checking trailer lights
in the centre display.Rear fog lamp on trailer
When a trailer is connected, the rear fog lamp may not be illuminated on the car. In this case, the rear fog lamp function is moved to the trailer. Therefore, in these cases, check when the rear fog lamp is activated that the trailer is equipped with rear fog lamp in order to drive the vehicle combination in a safe manner.
Symbols and messages in the driver display
If one or more of the trailer's direction indicator or brake light bulbs is broken, the driver display shows a symbol and a message. Other lights on the trailer have to be checked manually by the driver prior to departure.
| Symbol | Message |
|---|---|
 | Right trailer turn indicator malfunction Left trailer turn indicator malfunction |
 | Trailer brake light malfunction |
If any of the direction indicator bulbs on the trailer is broken, the driver display symbol for the direction indicators also flashes more quickly than normal.