Changing the battery
You require a CR 2025 3 V cell battery.
•► Take the mechanical key out of the SmartKey

•► Press mechanical key 2 into the opening in the SmartKey in the direction of the arrow until battery tray cover 1 opens.
When doing so, do not hold cover 1 shut.
•► Remove battery tray cover 1.

•► Repeatedly tap the SmartKey against your palm until battery 3 falls out.
•► Insert the new battery with the positive terminal facing upwards. Use a lint-free cloth to do so.
•► Make sure that the surface of the battery is free from lint, grease and all other forms of contamination.
•► Insert the front tabs of battery tray cover 1 and then press to close it.
•► Insert the mechanical key into the SmartKey.
•► Check the function of all SmartKey buttons on the vehicle.
See also:
Problems with PARKTRONIC
Problem
Possible causes/consequences and
Solutions
Only the red segments in the PARKTRONIC warning displays
are lit.
You also hear a warning tone for approximately two ...
Locking the vehicle (mechanical key)
If the vehicle can no longer be locked with the SmartKey, use the mechanical
key.
Open the driver's door.
Close the front-passenger door, the rear doors and the tailgate.
Press the locki ...
Maximum load rating
The maximum load rating in kilograms or
pounds is the maximum weight for which a
tire is approved. ...
