Mercedes-Benz B-Class hatchback 2022 Owner's Manual page 92

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Further information on convenience closing
( page 99).
/
If you open the tailgate from outside, it is auto-
matically unlocked.
Problems with KEYLESS-GO, troubleshooting
You can no longer lock or unlock the vehicle using
KEYLESS-GO
Possible causes:
The function of the key has been deactivated.
R
The key battery is weak or discharged.
R
Activate the function of the key (
#
Check the battery using the indicator lamp
#
( page 83).
/
Replace the key battery, if necessary
#
( page 85).
/
Use the replacement key.
#
Use the emergency key to lock or unlock
#
( page 90).
/
Have the vehicle and key checked at a quali-
#
fied specialist workshop.
There is interference from a powerful radio signal
source
Possible causes if the function of KEYLESS-GO is
impaired:
high voltage power lines
R
mobile phones
R
electronic devices (notebooks, tablets)
R
shielding due to metal objects or induction
R
loops for electrical gate systems or automatic
barriers
Make sure that there is sufficient distance
#
between the key and the potential source of
page 84).
/ interference.
Activating/deactivating the automatic locking fea-
ture
The vehicle is locked automatically when the vehi-
cle is switched on and the wheels are turning
faster than walking pace.
Opening and closing
To activate: press and hold button
#
approximately five seconds until an acoustic
signal sounds.
To deactivate: press and hold button
#
approximately five seconds until an acoustic
signal sounds.
The red indicator lamp on button
once the vehicle is locked.
89
2
for
1 for
2 lights up