Loss - Mercedes-Benz S-Class Coupe Operator's Manual

SmartKey
80
tery compartment cover : opens. Do not
hold battery compartment cover : closed
while doing so.
Remove battery compartment cover :.
X
Problems with the SmartKey
Problem
You can no longer lock or
unlock the vehicle using
the SmartKey.
You can no longer lock or
unlock the vehicle using
KEYLESS-GO.
Possible causes/consequences and M Solutions
The SmartKey battery is discharged or nearly discharged.
Check the SmartKey battery (
X
( page 79).
Y
If this does not work:
Unlock ( page 83) or lock (
X
Y
mechanical key.
There is interference from a powerful source of radio waves.
Unlock ( page 83) or lock (
X
Y
mechanical key.
The SmartKey is faulty.
Unlock ( page 83) or lock (
X
Y
mechanical key.
Have the SmartKey checked at a qualified specialist workshop.
X
KEYLESS-GO was deactivated.
Reactivate KEYLESS-GO (
X
The SmartKey battery is discharged or nearly discharged.
Check the SmartKey battery (
X
( page 79).
Y
If this does not work:
Unlock ( page 83) or lock (
X
Y
mechanical key.
There is interference from a powerful source of radio waves.
Unlock ( page 83) or lock (
X
Y
mechanical key.
Repeatedly tap the SmartKey against your
X
palm until battery = falls out.
Insert the new battery with the positive ter-
X
minal facing upwards. Use a lint-free cloth to
do so.
Make sure that the surface of the battery is
X
free of lint, grease and other contaminants.
Insert the front tabs of battery compartment
X
cover : into the housing first and then press
to close it.
Insert mechanical key ; into the SmartKey
X
( page 79).
Y
Check the function of all SmartKey buttons on
X
the vehicle.
page 79) and replace it if necessary
Y
page 84) the vehicle using the
Y
page 84) the vehicle using the
Y
page 84) the vehicle using the
Y
page 77).
Y
page 79) and replace it if necessary
Y
page 84) the vehicle using the
Y
page 84) the vehicle using the
Y