Mercedes-Benz GL-Class: Theft deterrent locking systems - Safety - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Theft deterrent locking systems

Distance warning function (vehicleswith DISTRONIC)
This function provides a warning from a speed of approximately 20 mph(30 km/h), if: • for a period of several seconds, the distance to the vehicle in front is too short for the speed at which yo ...

Immobilizer
The immobilizer prevents your vehicle from being started without the correct SmartKey. When leaving the vehicle, always take the SmartKey with you and lock the vehicle. The engine can be started ...

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Displaying the coolant temperature
WARNING   Driving when your engine is overheated can cause some fluids which may have leaked into the engine compartment to catch fire. You could be seriously burned. Steam from an over ...

Checking engine oil level
1. Park the vehicle on a level surface and apply the parking brake. 2. Run the engine until it reaches operating temperature. 3. Turn off the engine. Wait more than 15 minutes for the oil ...

Headrest (2nd row center seat) (if so equipped)
Removal and attachment To remove the headrest, push and hold the lock knob 1 and pull the headrest up. If the headrest is removed, store it in a secure place. Reinstall the headrest when th ...