Problems with the SmartKey
Problem | Possible causes/consequences and Solutions |
You cannot lock or unlock the vehicle using the SmartKey. | The SmartKey battery is discharged or nearly discharged. •► Try again to 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. If this does not work: •► Check the SmartKey battery and replace it if necessary •► Lock or unlock the vehicle using the mechanical key. The SmartKey is faulty. •► Lock or unlock the vehicle using the mechanical key. •► 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. •► Pull the door handle and then turn the SmartKey to position 2 in the ignition lock. There is interference from a powerful source of radio waves. •► 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. |
There is a malfunction with KEYLESS-GO. •► 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. •► Have KEYLESS-GO checked at a qualified specialist workshop. If this does not work: •► Check the SmartKey battery and replace it if necessary. •► Lock or unlock the vehicle using the mechanical key. |
|
You have lost a SmartKey. | •► Have the SmartKey deactivated at a qualified specialist
workshop.
•► Report the loss immediately to the vehicle insurers. •► If necessary, have the locks changed as well. |
You have lost the mechanical key. | •► Report the loss immediately to the vehicle insurers.
•► If necessary, have the locks changed as well. |
The engine cannot be started using the SmartKey. | The on-board voltage is too low.
•► Switch off non-essential consumers, e.g. seat heating or interior lighting, and try to start the engine again. If this does not work: •► Check the starter battery and charge it if necessary. |
The engine cannot be started using the SmartKey. | The steering lock is mechanically blocked3.
•► Remove the SmartKey and reinsert it into the ignition lock. While doing this, turn the steering wheel in both directions. |
The engine cannot be
started using KEYLESSGO.
The SmartKey is in the vehicle. |
A door is open. Therefore, the SmartKey cannot be detected as
easily. •► Close the door and try to start the vehicle again. There is interference from a powerful source of radio waves. •► Start your vehicle with the SmartKey in the ignition lock. |
See also:
Cleaning genuine wood and trim elements
Wipe the wooden trim and trim pieces with a damp, lint-free cloth, e.g.
a microfiber cloth.
Heavy soiling: use car care and cleaning products recommended and approved
by Mercedes-Benz.
...
Emergency Tensioning Devices, beltforce limiters
The seat belts for the front seats are equipped
with ETDs/belt buckle tensioners and seat
belt force limiters. The outer seat belts in the
second row of seats are equipped with ETDs and seat belt f ...
Checking the vehicle and trailer weight
To check that the weights of the towing vehicle and the trailer comply
with the maximum permissible values, have the vehicle/trailer combination (including
the driver, passengers, and cargo w ...