Mercedes-Benz B-Class, Owner'S Manual

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Further information on convenience closing
(
/
page 97).
If you open the tailgate from outside, it is auto-
matically unlocked.
Pr Problems wit oblems with KEYLESS-GO, tr h KEYLESS-GO, troubleshoo oubleshooting ting
YYou can no long ou can no longer loc er lock or unloc k or unlock t k the v he vehicle using ehicle using
KEYLESS-GO KEYLESS-GO
Possible causes:
R
The function of the key has been deactivated.
R
The key battery is weak or discharged.
#
Activate the function of the key (
/
page 82).
#
Check the battery using the indicator lamp
(
/
page 81).
#
Replace the key battery, if necessary
(
/
page 83).
#
Use the replacement key.
#
Use the emergency key to lock or unlock
(
/
page 88).
#
Have the vehicle and key checked at a quali-
ed specialist workshop.
Ther There is int e is interf erfer erence fr ence from a pow om a power erful r ful radio signal adio signal
sour source ce
Possible causes if the function of KEYLESS-GO is
impaired:
R
high voltage power lines
R
mobile phones
R
electronic devices (notebooks, tablets)
R
shielding due to metal objects or induction
loops for electrical gate systems or automatic
barriers
#
Make sure that there is su cient distance
between the key and the potential source of
interference.
AActiv ctivating/deactiv ating/deactivating t ating the aut he automatic loc omatic locking f king fea- ea-
ture ture
The vehicle is locked automatically when the vehi-
cle is switched on and the wheels are turning
faster than walking pace.
#
TTo activ o activat ate: e: press and hold button 2 for
approximately ve seconds until an acoustic
signal sounds.
#
TTo deactiv o deactivat ate: e: press and hold button 1 for
approximately ve seconds until an acoustic
signal sounds.
The red indicator lamp on button 2 lights up
once the vehicle is locked.
Opening and closing 87 87