Mersedes SUV Manuals

Storing the ball coupling

Mercedes-Benz GL-Class / Mercedes-Benz GL-Class Owners Manual / Driving and parking / Towing a trailer / Storing the ball coupling

WARNING

Do not carry the ball coupling in the vehicle interior if it is not secured.

Otherwise, you and others could be injured by the ball coupling being thrown around if you: brake sharply change direction suddenly are involved in an accident

Trailer power supply

You can connect accessories with a maximum power consumption of 240 W to the permanent power supply.

You must not charge a trailer battery using the power supply.

The trailer socket of your vehicle is equipped at the factory with a permanent power supply.

The permanent power supply is supplied via trailer socket pin 4.

The trailer's permanent power supply is switched off in the event of low vehicle supply voltage and after six hours at the latest.

A qualified specialist workshop can provide more information about installing the trailer electrics.

    See also:

    Flat tire
    Preparing the vehicle ► Stop the vehicle on solid, non-slippery and level ground, as far away as possible from traffic. ► Switch on the hazard warning lamps . ► Apply the parki ...

    Tires
    ...

    Useful information
    This Operator's Manual describes all models and all standard and optional equipment of your vehicle available at the time of publication of the Operator's Manual. Country-specific differences ar ...

    © 2026 Copyright www.mersuv.com