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. | 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.or Jump-start the vehicle.or Consult a qualified
specialist workshop. |
| The engine cannot be started using the SmartKey. | The steering lock is mechanically blocked. 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 KEYLESS-GO. 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:
Adjusting the head restraints manually
Adjusting the head restraint height
The head restraints must only
be removed
at a qualified specialist workshop.
Mercedes-Benz recommends that you use
a Mercedes-Benz Center for this purpose. ...
Opening and closing the service flap
You must open the service flap in the cargo
compartment before you can change the
bulbs in the tail lamps.
Left-hand service flap
Right-hand service flap
- To open: release service flap 1 a ...
ESP® trailer stabilization
If your vehicle with trailer (vehicle/trailer
combination) begins to lurch, you can only
stabilize the vehicle/trailer combination by
depressing the brake firmly.
In this situation, ESP® assist ...

Solutions
/
button.