Mercedes-Benz CLK-Class Owner's Manual page 337

Practical advice
Troubleshooting
Key and remote control
Problem
You cannot lock or unlock the vehicle us-
ing the remote control.
334
Possible cause/consequence
The remote control batteries are dis-
charged or almost discharged.
The remote control is faulty.
Suggested solutions
Point the tip of the remote control at the
driver's door from close range and try
again.
If this does not work:
Lock or unlock the vehicle using the
emergency key element ( page 341).
Check the remote control batteries
( page 80) and change them if neces-
sary ( page 354).
Lock or unlock the vehicle using the
emergency key element ( page 341).
Have the remote control checked at a
qualified specialist workshop, e.g. a
Mercedes-Benz Service Centre.