See also:

Exterior & Styling
Particularly from the rear, the GL's appearance looks a bit like Mercedes' original M-Class — so much so that a passenger walked up to an older M thinking it was the GL. The GL550's 21-inch wheels ...

High-beam headlamps
► Switch off the lights. ► Open the hood. ► Turn housing cover 1 counter-clockwise and pull it out. ► Turn bulb holder 2 counter-clockwise and pull it out. ► ...

Coolant
Important safety notes The coolant is a mixture of water and antifreeze/corrosion inhibitor. It performs the following tasks:  - corrosion protection  - antifreeze protection & ...