Mercedes-Benz S-Class 2011 - Manual (Page 83)

Problems with the SmartKey
Problem Possible causes/consequences and M Solutions
You cannot lock or
unlock the vehicle
using the SmartKey. The SmartKey battery is discharged or nearly discharged.
X Point the tip of the SmartKey at the driver's door handle from a
distance of approximately 1.5 ft (50 cm) and try to unlock or
lock the vehicle again.
If this does not work:
X Check the SmartKey battery and replace it if necessary
(
Y page 80).
X Lock ( Y page 84) or unlock ( Y page 84) the vehicle using
the mechanical key.
The SmartKey is faulty.
X Lock ( Y page 84) or unlock ( Y page 84) the vehicle using
the mechanical key.
X Have the SmartKey checked at a qualified specialist workshop.
You can no longer lock
or unlock the vehicle
using KEYLESS-GO. KEYLESS-GO is in standby mode because the vehicle has not been
unlocked for an extended period.
X Pull the door handle twice and then insert the SmartKey into the
ignition lock.
There is a malfunction with KEYLESS-GO.
X Lock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.
X Have the SmartKey checked at a qualified specialist workshop.
There is interference from a powerful source of radio waves.
X Lock/unlock the vehicle using the remote control function of
the SmartKey. Point the tip of the SmartKey at the driver's door
handle from close range and press the %/& button.
You have lost the
SmartKey.
X Have the SmartKey canceled at an authorized Mercedes-Benz
Center.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well.
You have lost the
mechanical key.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the locks changed as well.
SmartKey
81
Opening and closing
Z