Fog Lamps

For vehicles with fog lamps, they can be used for better vision in foggy or misty conditions. The parking lamps and/or low-beam headlamps must be on for the fog lamps to work. The fog lamp button ...

Instrument Panel Illumination Control

(Instrument Panel Brightness): This feature controls the brightness of the instrument panel lights and is located next to the exterior lamps control. Push the knob to extend out and then it can ...

See also:

Vehicle data, GL 450
The data stated here refers specifically to a vehicle with standard equipment. Consult an authorized Mercedes-Benz Center for the data for all vehicle variants and trim levels. ...

Important safety notes
The fuses in your vehicle serve to close down faulty circuits. If a fuse blows, all the components on the circuit and their functions stop operating. WARNING   Only use fuses approved b ...

How to Add Coolant to the Surge Tank
WARNING You can be burned if you spill coolant on hot engine parts. Coolant contains ethylene glycol and it will burn if the engine parts are hot enough. Do not spill coolant on a hot engine. ...