See also:

DEF refill bottle
DEF refill bottles can be obtained at many gas stations or at an authorized Mercedes-Benz Center. Refill bottles without a threaded cap do not provide overfill protection. DEF may leak if over ...

Seating & Cargo
The GL550's front seats have a litany of power adjustments, including adjustable stiffness for the side bolsters. Even with the bolsters and lumbar support dialed all the way back, the seats are t ...

Opening the hood
WARNING Do not pull the release lever while the vehicle is in motion. Otherwise, the hood could be forced open by passing air flow. This could cause the hood to come loose and injure you and ...