Mercedes-Benz CLK-Class Owner's Manual page 341

Practical advice
Troubleshooting
Problem
You cannot lock or unlock the vehicle us-
ing the KEYLESS GO key.
The battery check lamp in the KEYLESS GO
key does not light up when tested.
The vehicle cannot be started using the
KEYLESS GO key and the selector lever
button. The KEYLESS GO key is in the vehi-
cle.
You have lost the KEYLESS GO key.
338
Possible cause/consequence
There is strong interference from a radio
source.
The KEYLESS GO key batteries are dis-
charged.
A door is open. The key cannot be easily
detected.
You did not depress the brake pedal when
starting the engine.
There is strong interference from a radio
source.
Suggested solutions
Lock or unlock the vehicle using the
emergency key element ( page 341).
Change the batteries ( page 355).
Close the door and restart the engine.
Depress the brake pedal and press the
KEYLESS GO button on the selector le-
ver.
Start your vehicle with the KEYLESS GO
key in the ignition lock.
Have the KEYLESS GO key cancelled at
a Mercedes-Benz Service Centre.
Report the loss immediately to the ve-
hicle insurers.
If necessary, have the manual locks
changed too.