Mercedes-Benz CLK Coupe Operator's Manual page 29

Instruments
Operation
and controls
Central locking system
Electronic reserve key
The electronic reserve key is without remote control
functions, but with removable mechanical key.
Instrument
Driving
cluster display
1
P80.35-2036-26
Practical hints Car care
26
The electronic reserve key (1) works only in the steering
lock. There are no batteries inside the electronic reserve
key.
The mechanical key (2) works only in the driver's door,
trunk, and storage compartment locks.
To use the mechanical key (2), remove it from its
electronic reserve key (1).
Note:
We recommend that you carry the electronic reserve
key plus mechanical key with you and keep it in a safe
place (e.g. your wallet) so that it is always handy. Never
leave the electronic reserve key in the vehicle.
Obtaining replacement keys
Your vehicle is equipped with a theft deterrent locking
system requiring a special key manufacturing process.
For security reasons, replacement keys can only be
obtained from your authorized Mercedes-Benz Center.
Technical
Index
data