key battery MERCEDES-BENZ CLS63AMG 2008 W219 Owner's Guide

403 Practical hints
Replacing SmartKey batteries
3Batteries
4Contact springs
Pull out batteries3.
Using a line-free cloth, insert new bat-
teries 3 under contact springs 4 with
the positive terminal (+) side facing up.
Return battery compartment 2
(
page 402) into housing until it locks
into place.
Slide the mechanical key back into the
SmartKey/SmartKey with
KEYLESS-GO*.
Check the operation of the SmartKey/
SmartKey with KEYLESS-GO*.

421 Practical hints
Battery
Disconnecting the battery
Depress parking brake firmly or move
gear selector lever to positionP.
Turn off all electrical consumers.
Remove SmartKey from starter switch.
Vehicles with KEYLESS-GO*:
Press the start/stop button until
the engine shuts off.
Open the driver’s door.
Open the trunk.
Read and observe safety instructions
and precautions (
page 420).
Remove the luggage box (page 397).
Disconnect battery negative lead2.
Remove cover1 from the positive ter-
minal.
Disconnect the battery positive lead.
Removing the battery
Remove the screw-nuts securing the
battery.
Remove the battery bracket.
Pull out the battery ventilation tube
from the battery (depending on battery
arrangement in your vehicle model, the
battery ventilation tube is located on
the left or right side of the battery).
Take out the battery.
!As with any other battery, disconnect the
battery if you do not intend to operate your vehi-
cle for an extended period of time to prevent bat-
tery discharge or connect an accessory battery
charge unit expressly approved by
Mercedes-Benz for your vehicle model to main-
tain the battery charge. Contact an authorized
Mercedes-Benz Center for further information.
The battery, the battery ventilation hose and the
lateral plug must always be securely installed
when the vehicle is in operation.
!Never loosen or detach battery terminal
clamps while the engine is running or the
SmartKey is in the starter switch. Otherwise the
alternator and other electronic components
could be severely damaged.
Have the battery checked regularly by an autho-
rized Mercedes-Benz Center.
Refer to Maintenance Booklet for maintenance
intervals or contact your authorized
Mercedes-Benz Center for further information.
Warning!G
With a disconnected battery

you will no longer be able to turn the
SmartKey in the starter switch and
pressing the KEYLESS-GO* start/stop
button on the gear selector lever will
have no effect

the gear selector lever will remain
locked in positionP

422 Practical hints
Battery
Charging and reinstalling the batteryCharge battery in accordance with the
instructions of the battery charger
manufacturer.
Reinstall the charged battery. Follow
the previously described steps in re-
verse order.
Reconnecting the battery
Turn off all electrical consumers.
Remove the SmartKey from the starter
switch.
Connect the positive lead and fasten its
cover.
Connect the negative lead.
Install the luggage box (page 397).Batteries contain materials that can harm
the environment if disposed of improperly.
Large 12 volt storage batteries contain
lead. Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.
Warning!G
Never charge a battery while still installed in
the vehicle unless the accessory battery
charge unit* approved by Mercedes-Benz is
being used. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
An accessory battery charge unit* specially
adapted for Mercedes-Benz vehicles and
tested and approved by Mercedes-Benz is
available, permitting the charging of the
battery in its installed position. Contact an
authorized Mercedes-Benz Center for infor-
mation and availability. Charge battery in
accordance with the separate instructions
for the accessory battery charger*.
!The battery, its filler caps and the battery
ventilation tube must always be securely in-
stalled when the vehicle is in operation.
!Never invert the terminal connections!
iThe following procedures must be carried
out following any interruption of battery power
(e.g. due to reconnection):

Set the clock (page 157) (see COMAND
operator’s manual).

Synchronize the side windows
(
page 207).

Synchronize the tilt/sliding sunroof
(
page 212).

426 Practical hints
Towing the vehicle
Installing towing eye bolt
Front of vehicle
1Cover on right side of front bumper
To remove cover:
Press mark on cover1 in direction of
arrow.
Lift cover off to reveal the threaded
hole for towing eye bolt.
!Towing of the vehicle should only be done
using the properly installed towing eye bolt. Nev-
er attach tow cable, tow rope or tow rod to the
vehicle chassis, frame or suspension parts.
iWhen towing the vehicle with all wheels on
the ground, please note the following:
With the automatic central locking activated and
the SmartKey in starter switch position2, or
KEYLESS-GO
* start/stop button in position2,
the vehicle doors lock if the left front wheel as
well as the right rear wheel are turning at vehicle
speeds of approximately 9 mph (15 km/h) or
more.
To prevent the vehicle door locks from locking,
deactivate the automatic central locking
(
page 116).
iTo signal turns while being towed with the
hazard warning flasher in use, turn SmartKey in
starter switch to position2 and activate the
combination switch for the left or right turn
signal in the usual manner – only the selected
turn signal will operate.
Upon canceling the turn signal, the hazard warn-
ing flasher will operate again.
iThe selector lever will remain locked in park
positionP and the SmartKey will not turn in the
starter switch if the battery is disconnected or
discharged. For more information see “Battery”
(
page 420) or “Jump starting” (page 423).
For information on manual unlocking of the gear
selector lever, see (
page 400).

458 Index
Automatic transmission
Accelerator position 173
Automatic shift program 175
Emergency operation (limp-home
mode) 182
Gear ranges 174
Gear selector lever 169
Gear selector lever control one-touch
gearshifting 176
Gear selector lever positions 171
Gear shifting malfunctions 182
Kickdown 173
Kickdown, manual shift program
CLS 63 AMG 181
Manual shift program
CLS 63 AMG 179
Program mode selector switch 175
Shifting procedure 170
Starting the engine 51
Steering wheel gearshift control
one-touch gearshifting* 177
Auxiliary bulbs 404
Messages in display 383B
Backrest
Seat 42
Seat, multicontour* 120
Backup lamps see Reverse lamps
Bar 324
BAS 90
Batteries, SmartKey
Checking battery condition 108
Replacing 402
Batteries, SmartKey with KEYLESS-GO*
Checking battery condition 108
Replacing 402
Batteries, vehicle 420
Charging 422
Disconnecting 421
Jump starting 423
Messages in display 372–373
Reconnecting 422
Reinstalling 422
Removing 421
Bead 324
Beverage holder see Cup holders
Bi-Xenon headlamps see
Headlamps 126
Block heater* (Canada only) 329Brake fluid
Checking 285
Brake lamps
Cleaning lenses 337
Replacing bulbs 406
Brake pads
Message in display 373
Brakes
High-performance brake system
(CLS 63 AMG only) 274
Warning lamp 347
Break-in period 270
Bulbs, replacing see Replacing bulbs
C
California retail buyers and lessees, impor-
tant notice for 11
Can holder see Cup holders
Capacities and recommended
fuels/lubricants 448
Cargo tie-down hooks 242
Carpets, cleaning 340
Catalytic converter 281
CD player 149

465 Index
Interior lighting 133
Delayed shut-off 162
Interior rear view mirror 47, 183
Auto dimming 183
Interior storage space see Storage com-
partments
J
Jack 396
Jacking up the vehicle 414
Jump starting 423
K
Key, Mechanical 398
Loss of 108
Key, SmartKey
Battery check lamp 103
Checking batteries 108
Factory setting 101
Global locking 102, 103
Global unlocking 102
Locking/unlocking 100, 103
Loss of 108
Messages in display 380
Opening and closing the power
tilt/sliding sunroof 208Opening and closing the
windows 208
Remote control 100
Replacing batteries 402
Restoring to factory setting 103
Selective setting 102
Starter switch positions 38
Starting the engine 51, 52
Turning off the engine 60
Key, SmartKey with KEYLESS-GO*
Battery check lamp 103
Checking batteries 108
Factory setting 106
Global locking 106, 107
Global unlocking 106, 107
Locking/unlocking 103
Locking/unlocking, Selective
setting 107
Loss of 108
Messages in display 380, 381, 385
Opening and closing the power
tilt/sliding sunroof 208
Opening and closing the
windows 208
Opening the trunk 109
Remote control 103Replacing batteries 402
Restoring to factory setting 107
Selective setting 107
Starter switch positions 39
Starting the engine 52
Turning off the engine 61
KEYLESS-GO* see Key, SmartKey with
KEYLESS-GO*
Kickdown 173
Kilopascal 324
Knee bag 70
L
Labels
Certification 434
Emission control information 435
Lamp bulbs, exterior 404
Lamps, exterior
Front 405
Messages in display 382
Rear 406
Replacing bulbs 404
Switching on/off 126

466 Index
Lamps, indicator and warning
ABS 27, 344
Air bag off 70
Battery (SmartKey) 102
Brakes 347
CHECK ENGINE 27, 348, 349
Coolant 350
Distance warning lamp* 220, 226
Engine diagnostics 348, 349
Engine malfunction 27, 348, 349
ESP
®27, 345, 346
Fog lamps 129
Front passenger front air bag off 29,
356, 357
Fuel reserve 27, 351
High beam headlamps 27
Instrument cluster 344, 346
Seat belt telltale 27, 351, 352
SRS 65
Turn signals 27
Language, Setting 155
LATCH type child seat anchors 86
Layout of poly-V-belt drive 436
License plate lamps 406
Messages in display 385
Replacing bulbs 409Light alloy wheels, cleaning 339
Lighter see Cigarette lighter
Lighting 126
Automatic headlamp mode 127
Combination switch 130
Daytime running lamp mode 128
Door entry lamps 135
Exterior lamp switch 126
Front fog lamps 129
High beams 130
Instrument cluster illumination 136
Interior 133
Locator lighting 129
Low beam 126
Manual headlamp mode 127
Night security illumination 129
Parking lamps 126
Rear fog lamp 129
Settings (control system) 159
Trunk lamp 135
Limp-home mode 182
Loading see Vehicle loading
Loading the vehicle 296
Locator lighting 129, 160
Lock button (KEYLESS-GO*)
Door handle 62Locking the vehicle 59
In an emergency 399
Locking/Unlocking, SmartKey 36, 102
Locking/Unlocking, SmartKey with
KEYLESS-GO* 37
Loss of
Key, Mechanical 108
Key, SmartKey 108
Key, SmartKey with
KEYLESS-GO* 108
Loss of Service and Warranty Information
Booklet 433
Low beam headlamps 55
Indicator lamp 27
Replacing bulbs 408
Switching on 55
Lubricants 448
Lumbar support 119

474 Index
Tow-start 423, 425
Traction 326
Transmission fluid level 289
Transmission gear selector lever see Gear
selector lever
Transmission see Automatic transmission
Traveling abroad 280
Tread 326
Tread depth 294, 328
Tread depth (tires) 328
Treadwear indicators 326
Trip computer 164
Trip odometer
Resetting 137
Trunk
Closing the lid 111
Fuse box 429
Lamp 135
Message in display 372
Opening 109, 110
Tie-down hooks 242
Trunk lid emergency release 114
Unlocking in an emergency 399
Valet locking 115
Trunk lid, Unlocking 109Turn signals 55
Additional in mirrors 405
Bulbs 405
Cleaning lenses 337
Indicator lamps 27
Messages in display 387
Replacing bulbs 408
Turning off engine 60
U
Uniform Tire Quality Grading
Standards 326
Units, Settings
Speedometer 155
Temperature 156
Unleaded gasoline, Premium 451
Unlocking 36
In an emergency 398
Mechanical Key 398
Uphill driving, Cruise control 214
Upholstery
Cleaning 340
Useful features 243V
Valet locking 115
Vehicle
Battery 420
Care 333
Control system, settings menu 139
Dimensions 447
Individual settings 152
Locking/unlocking 100
Locking/unlocking in an
emergency 398, 399
Lowering 418
Modifications and alterations, operat-
ing safety 16
Towing 425
Washing 335
Weights 447
Vehicle jack 396
Vehicle level control see Airmatic DC (Dual
Control)
Vehicle lighting
Checking 285