227 Controls in detail
Useful features
Tele Aid The Tele Aid system
(Telematic Alarm Identification on De-
mand)
The Tele Aid system consists of three
types of response:
automatic and manual emergency
roadside assistance and
information
The Tele Aid system is operational provid-
ing that the vehicle’s battery is charged,
properly connected, not damaged and cel-
lular and GPS coverage is available.
The speaker volume of a Tele Aid call can
be adjusted when using the volume control
on the multifunction steering wheel. To
raise, press button
æ
and to lower,
press button
ç
.
To activate, press the SOS button, the
Roadside Assistance button
•
or
the Information button
¡
, depend-
ing on the type of response required.Shortly after the completion of your Ac-
quaintance Call, you will receive a user ID
and password via first call mail. By visiting
www.mbusa.com and selecting “Tele Aid”
(USA only), you will have access to account
information, remote door unlock and
more.
!The initial activation of the Tele Aid sys-
tem may only be performed by com-
pleting the subscriber agreement and
placing an acquaintance call using the
SOS button. Failure to complete either
of these steps will result in a system
that is not activated. If the system is
not activated, the indicator lamp in the
SOS button stays on after turning key
in starter switch to position2 or press-
ing KEYLESS-GO* start/stop button (if
so equipped) twice to position2
(page 33). The message
Tele Aid
not activated
will be shown in the
multifunction display for approx.
10 seconds.
If you have any questions regarding ac-
tivation, please call the Response Cen-
ter at 1-800-756-9018 (in the USA) or
1-888-923-8367 (in Canada).
iThe SOS button is located above the in-
side rear view mirror.
The Roadside Assistance button
•
and the Information button
¡
are
located below the center armrest cov-
er.
!The Tele Aid system utilizes the cellular
network for communication and the
GPS (Global Positioning System) satel-
lites for vehicle location. If either of
these signals is unavailable, the
Tele Aid system may not function and if
this occurs, assistance must be sum-
moned by other means.
288 Practical hintsWhat to do if …?Display
Possible cause
Suggested solution
F
Key
Check battery!
The SmartKey with KEYLESS-GO* batter-
ies are discharged.
Change the batteries (
page 312).
Key
not recognized!
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running be-
cause
the key is not in the vehicle
there is strong radio-frequency inter-
ference
S t o p t h e v e h i c l e a s s o o n a s i t i s s a f e t o
do so.
Search for the key.
Otherwise the vehicle cannot be centrally
locked nor can the engine be started
again after the engine has been stopped.
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.
Change the position of the key in the
vehicle.
Operate the vehicle with the key in the
starter switch if necessary.
Key recognized
in vehicle
A SmartKey with KEYLESS-GO* left in the
vehicle was recognized while locking the
vehicle from the outside.
Take the key out of the vehicle.
Keyless Go
Check system
The KEYLESS-GO* system is malfunction-
ing.
Visit an authorized Mercedes-Benz
Center as soon as possible.
312 Practical hintsUnlocking/locking in an emergencyChanging batteries
If the batteries in the SmartKey or the
SmartKey with KEYLESS-GO* are dis-
charged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an autho-
rized Mercedes-Benz Center.
Batteries contain materials that can harm
the environment if disposed of improperly.
Recycling of batteries is the preferred
method of disposal. Many states require
sellers of batteries to accept old batteries
for recycling.SmartKey /
SmartKey with KEYLESS-GO*
1Mechanical key
2Battery compartment
Replacement batteries: Lithium, type
CR 2025 or equivalent.
Remove mechanical key1
(page 310).
Insert the mechanical key in side open-
ing and push gray slide.
The battery compartment is unlatched.
Pull the battery compartment out of the
key housing in direction of arrow.
Remove the batteries.
3Battery
4Contact spring
Warning!
G
Keep the batteries out of reach of children.
If a battery is swallowed, seek medical help
immediately.
iWhen changing batteries, always re-
place both batteries.
The required replacement batteries are
available at any Mercedes-Benz
Center.
329 Practical hints
Battery
Battery
The battery is located in the engine com-
partment on the right hand side.
Removal of filter box:
Release the three clamps1.
Remove filter box.
Installation of filter box:
Insert filter box properly.
Secure it with the three clamps1.
Warning!
G
Failure to follow these instructions can re-
sult in severe injury or death.
Never lean over batteries while connecting,
you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the key is in the starter switch. Oth-
erwise the alternator and other elec-
tronic components could be severely
damaged.
Have the battery checked regularly by
an authorized Mercedes-Benz Center.
Refer to Service Booklet for mainte-
nance intervals or contact your autho-
rized Mercedes-Benz Center for further
information.Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
330 Practical hintsBattery1Negative terminal
2Cover over positive terminal
Disconnecting the battery
Turn off all electrical consumers.
Open the hood (
page 253).
Remove the filter box.
Disconnect battery negative lead1.
Remove cover 2 from the positive ter-
minal.
Disconnect the battery positive lead.
Removing the batteries
Remove the screw securing the bat-
tery.
Remove the battery support and brack-
et. Take out the battery.
Charging and reinstalling batteries
Charge battery in accordance with the
instructions of the battery charger
manufacturer.
Reinstall the charged battery. Follow
the previously described steps in re-
verse order.
Warning!
G
With a disconnected battery
y o u w i l l n o l o n g e r b e a b l e t o t u r n t h e k e y
in the starter switch and pressing the
KEYLESS-GO* start/stop button (if so
equipped) on the selector lever will have
no effect
the selector lever will remain locked in
positionP
Warning!
G
Never charge a battery while still installed in
the vehicle. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
336 Practical hintsTowing the vehicle
Installing towing eye bolt
1Cover on right side of front bumper2Cover on right side of rear bumper
To remove cover:
Press mark on cover in direction of ar-
row.
L i f t c o v e r o f f t o r e v e a l t h r e a d e d h o l e f o r
towing eye bolt.
The towing eye bolt is supplied with the
tool kit (located in the compartment under-
neath the trunk floor).
Screw towing eye bolt to its stop and
tighten with lug wrench.
To reinstall cover:
Fit cover and snap into place.
!When towing the vehicle with all wheels
on the ground, please note the follow-
ing:
With the automatic central locking acti-
vated and the key in starter switch
position2, or KEYLESS-GO* start/stop
button (if so equipped) in position2,
the vehicle doors lock if the left front
wheel as well as the right rear wheel
are turning at vehicle speeds of approx.
9 mph (15 km / h) or more.
Switch off the tow-away alarm
(page 81).
To prevent the vehicle door locks from
locking, deactivate the automatic cen-
tral locking (
page 133).
Towing of the vehicle should only be
done using the properly installed tow-
ing eye bolt. Never attach tow cable,
tow rope or tow rod to the vehicle chas-
sis, frame or suspension parts.
iThe selector lever will remain locked in
positionP and the key will not turn in
the starter switch if the battery is dis-
connected or discharged. See notes on
the battery (
page 329) or on jump
starting (
page 332).
369 Index
Automatic lighting control
Activating 109
Deactivating 109
Automatic locking when driving 95
Automatic transmission 141
Accelerator position 146
Activating steering wheel gearshift
control 147
Deactivating steering wheel gearshift
control 148
Emergency operation (Limp Home
Mode) 146
Fluid level 256
Gear ranges 143
Gear selector lever position 144
Gear shifting malfunctions 146
Kickdown 146
Manual shift program, CLK 55 AMG
146
One-touch gearshifting 142
Program mode selector switch 145
Selector lever position 141
Speedshift, CLK 55 AMG 146
Starting the engine 43
Steering wheel gearshift control
(Speedshift), CLK 55 AMG 146Transmission fluid 256
Winter program mode 145, 147
Auxiliary fuse box 338
B
BabySmart
TM
Airbag deactivation system 68
Compatible child seats 68, 361
Self-test 68
BabySmart
TM airbag deactivation system
361
Backrest
Folding forward 216
Folding rearward 217
Backup lamps 317, 322
Bulbs 317
BAS 76, 361
Messages in display 285
Batteries, SmartKey
Changing 312
Check lamp 85
Checking 86
Batteries, SmartKey with KEYLESS-GO*
Changing 312
Checking 86
Battery discharged
Jump starting 332Battery, vehicle 258, 329
Charging 330
Disconnecting 330
Messages in display 303
Reconnecting 331
Reinstalling 330
Removing 330
Bi-Xenon headlamps* 361
Block heater* 265
Blocking
Rear window operation 72
Bolts
For Minispare wheel 309
Brake assist system (BAS) 361
Brake fluid 353
Brake lamp bulbs 317
Brake lamp, high mounted 317
Brake pads
Message in display 286
Brakes 242
Warning lamp 279
Break-in period 240
370 IndexBulbs, replacing 316
Additional turn signals 317
Backup lamps 317
Brake lamps 317
Fog lamps 317
Front lamps 317
High beam 317
High mounted brake lamp 317
License plate lamps 317, 322
Low beam 317
Parking lamps 317, 319, 321
Rear fog lamp 317
Rear fog lamps 322
Side marker lamps 317, 321
Standing lamps 317, 319, 321
Tail lamp assemblies 317, 322
Turn signal lamps 317
Button
Audio system 168C
CAC (Customer Assistance Center) 362
Calling up
Distronic* settings 121
Range (distance to empty) 137
Service indicator 267
CAN system 362
Capacities
Fuels, coolants, lubricants, etc. 351
Cargo tie-down rings 218
Casette mode
Playing cassettes 174
Cassette player
Operating 121
Catalytic converter 248
CD changer* 178
CD mode 178
CD player
Operating 120
Center console 25
AIRBAG OFF indicator lamp 282
Lower part 26
Upper part 25
Centigrade
Setting temperature units 126Central locking
Automatic 95
From inside 95
Switch 95
Switching on/off (control system) 133
Unlocking from inside 95
Central locking switch 95
Changing
Batteries (SmartKey with KEY-
LESS-GO*) 312
Batteries (SmartKey) 312
Key setting 133
Changing CDs 178
Charcoal filter 161
Activating 161
Deactivating 161
Charging
Vehicle battery 330
CHECK ENGINE malfunction indicator
lamp 280
Checking
Coolant level 256
Oil level 252, 254
Tire inflate pressure 252
Vehicle lighting 252