Premium-grade unleaded gasoline
To ensure the longevity and full
performance of the engine, only premiumgrade
unleaded gasoline may be used.
If there is no premium-grade unleaded
gasoline available and regular-grade
unleaded gasoline may be used; please
observe the following precautions:
• only fill the fuel tank to half full with
regular-grade unleaded gasoline and fill
the rest with premium-grade unleaded
gasoline as soon as possible.
• do not drive at the maximum speed.
• avoid sudden acceleration.
• if the vehicle is carrying a light load, e.g. two passengers without luggage,
do not
allow the engine to rev above
3,000 rpm.
• if the vehicle is fully loaded or is being
operated in mountainous terrain, do not
depress the accelerator pedal further
than 2/3 of the pedal travel.
See also:
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 ...
Safety
Antilock brakes have Brake Assist for automatic full-power braking in panic
stops. Electronic brake-force distribution enhances stability when braking in
curves. ...
Restoring the factory settings
Press the and
buttons
simultaneously for approximately six
seconds until the battery check lamp
flashes twice. ...
