Fuse box in the engine compartment
•► Make sure that the windshield wipers are turned off.
WARNING
Make sure that the windshield wipers are
switched off and that the SmartKey is
removed from the ignition lock before you
open the cover of the fuse box. Otherwise, the
windshield wipers and the wiper rods above
the cover could be set in motion. This could
lead to you or others being injured by the
wiper rods.
•► Open the hood

•► Remove any existing moisture from the fuse box using a dry cloth.
•► Take lines 2 from the guides.
•► Move aside lines 2. Route the lines behind connection 3 to do this.
•► To open: open clamps 1.
•► Remove the fuse box cover forwards.
Make sure that no moisture can enter the fuse box when the cover is open.
•► To close: check whether the rubber seal is lying correctly in the cover.
•► Insert the cover at the rear of the fuse box into the retainer.
•► Fold down the cover and close clamps 1.
•► Secure lines 2 in the guides.
The cover must be seated properly, otherwise moisture or dirt could impair the function of the fuses.
•► Close the hood
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 ...
Activating/deactivating
- Turn the SmartKey to position 2 in the
ignition lock.
- To switch on: press the button.
The indicator lamp in the button
lights
up. Airflow and air distribution are set to
automatic mode ...
Important notes on use
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent DEF.
When the DEF supply has almost run out, the
Check Additive See Operator's
Manual message ...
