Activating/deactivating the acoustic locking verification signal
If you activate the Acoustic Lock Feedb.
function, an audible signal sounds depending
on the vehicle's date of manufacture:
• when locking
or
• once when unlocking and three times when locking
Press the 
or
button on the
steering wheel to select the Settings
menu.
Press the 
or
button to select
Acoustic Lock Feedb.
Press the 
button to confirm.
To activate/deactivate: press
again.
See also:
Belt height adjustment
You can adjust the seat belt height on the
driver's seat and the front-passenger seat.
Wagon: you can also adjust the belt height
on the outer rear seats.
Adjust the height so that the upper p ...
Vehicle data, GL 550
The data stated here refers specifically to a
vehicle with standard equipment. Consult an
authorized Mercedes-Benz Center for the
data for all vehicle variants and trim levels.
...
DEF
Important notes on use
To function properly, BlueTEC exhaust gas
aftertreatment must be operated with the
reducing agent DEF. Adding DEF is one of the
tasks performed during maintenance. Under
no ...