Mercedes-Benz GL-Class: Towing and tow-starting - Breakdown assistance - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Towing and tow-starting

Jump-starting
WARNING   Failure to follow these directions will cause damage to the electronic components, and can lead to a battery explosion and severe injury or death. Never lean over batteries wh ...

Important safety notes
WARNING   If you tow the vehicle, you must use a rigid towing bar if: • the engine is not running. • there is a brake system malfunction. • there is a malfunction in the power ...

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Coupling up a trailer
WARNING   While you are coupling or decoupling a trailer, make sure nobody locks or unlocks the vehicle and/or opens or closes doors or the tailgate. The vehicle's level could change an ...

If the Vehicle Is Stuck
Slowly and cautiously spin the wheels to free the vehicle when stuck in sand, mud, ice, or snow. See “Rocking Your Vehicle to Get It Out” later in this section. If the vehicle has a traction sys ...

Spark plugs
WARNING Be sure the engine and the ignition switch are off and that the parking brake is engaged securely. CAUTION Be sure to use the correct socket to remove the spark plugs. An incorre ...