Replacing smartkey batteries, Replace the batteries, Practical hints – Mercedes-Benz CLS-Class 2009 Owners Manual User Manual
Page 308
Replacing SmartKey batteries
306
1
Reset tool
2
Active head restraint cushion
3
Rectangular opening
X
Take reset tool
1
out of the Mercedes-
Benz literature pouch.
X
Guide reset tool
1
into rectangular open-
ing
3
between active head restraint cush-
ion
2
and head restraint cover.
X
Press reset tool
1
downward in direction
of arrow until you hear the head restraint
release mechanism audibly engage.
X
Pull out reset tool
1
.
X
Firmly press the active head restraint cush-
ion
2
backward towards the head
restraint cover in direction of arrow until it
engages.
X
Repeat this procedure for the second front
seat.
X
After resetting the active head restraints
store reset tool
1
in the Mercedes-Benz
literature pouch.
For information on active head restraints, see
“Active head restraints” (
For information on head restraint adjustment,
see “Seats” (
If the batteries in the SmartKey are dis-
charged, the vehicle can no longer be locked
or unlocked. It is recommended to have the
batteries replaced at an authorized Mer-
cedes-Benz Center.
Batteries contain poisonous and corrosive
substances. Therefore, keep the batteries
out of reach of children.
If a battery is swallowed, seek medical help
immediately.
SmartKey batteries contain Perchlorate
material, which may require special han-
dling and regard for the environment.
Check with your local government’s dis-
posal guidelines. California residents, see
http://www.dtsc.ca.gov/Hazardous-
Waste /Perchlorate/index.cfm.
Batteries contain materials that can harm the
environment if disposed of improperly. Recy-
cling of batteries is the preferred method of
disposal. Many states require sellers of bat-
teries to accept old batteries for recycling.
Practical hints