Mercedes-Benz 2004 M-Class Automobile User Manual


 
93
Controls in detail
Locking and unlocking
Automatic central locking
The doors and the liftgate automatically
lock when the ignition is switched on and
the left front wheel turns at vehicle speeds
of approximately 9mph (15km/h) or
more.
If one of the front doors is then opened
from the inside, the vehicle is unlocked
centrally unless only the driver's door was
previously unlocked.
Information on towing the vehicle can be
found in the “Practical hints” section
(
page 241).
The switch is located on the lower center
console.
Central locking switch
1 Locking
2 Unlocking
Activating
̈ Make sure the ignition is switched on.
All the lamps in the instrument cluster
light up.
̈ Press and hold upper part 1 of the
central locking button for approximate-
ly six seconds.
The automatic central locking is
activated.
Deactivating
̈ Make sure the ignition is switched on.
All the lamps in the instrument cluster
light up.
̈ Press and hold lower part 2 of the
central locking button for approximate-
ly six seconds.
The automatic central locking is deacti-
vated.
i
The doors unlock automatically after an
accident if the force of the impact ex-
ceeds a preset threshold.
To prevent the vehicle door locks from
locking, deactivate the automatic cen-
tral locking when the vehicle
ț is pushed or towed
ț is on a test stand