Mercedes-Benz GL-Class: Maintenance - Maintenance and care - Mercedes-Benz GL-Class Owner's ManualMercedes-Benz GL-Class: Maintenance

Brake fluid level
If you notice that the brake fluid level in the brake fluid reservoir has fallen to the MIN mark or less, check the brake system immediately for leaks. Also check the thickness of the brake lini ...

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Shifting out of Park
The vehicle is equipped with an electronic shift lock release system. The shift lock release is designed to: ► Prevent ignition key removal unless the shift lever is in P (Park) with the shif ...

Air suspension
WARNING Ensure that the vehicle is clear of people and obstacles before lowering the suspension. The difference between Off-road height and Access height is 4.1 in. (105 mm). The air suspen ...

Tire tread
WARNING   Although the applicable federal motor vehicle safety laws consider a tire to be worn when the tread wear indicators (TWI) become visible at approximately 1/16 in (1.6 mm), we r ...