
1 Contents
IntroductionProduct information  .......................... 5
Operator’s manual  ............................. 6
Where to find it  ................................ 11
Reporting Safety Defects  ................ 13Instruments and controlsInstruments and controls  ............... 16
Center console  .............................. 18
Overhead control panel  ............... 19OperationVehicle keys  ...................................... 22
Remote control with 
folding master key  ...................... 22
Start lock-out  .................................... 23
General notes on the 
central locking system  ............... 23
Central locking system  ................... 24
Remote control  ............................. 24
Panic button  .................................. 26
Mechanical keys  ........................... 27Doors ................................................. 28
Central locking switch .................... 30
Automatic central locking ...............31
Emergency unlocking in 
case of accident  .......................... 32
Trunk ................................................. 33
Emergency release 
for trunk lid  ................................. 35
Antitheft alarm system ................... 35
Tow-away alarm  ............................... 37
Seats .................................................. 38
Seat heater ........................................ 42
Seat belts and 
integrated restraint system ....... 44
Seat belts  .......................................... 44
Seat belt nonusage 
warning system ............................ 45
BabySmart
TM airbag 
deactivation system  ....................51
Self-test BabySmart
TM without 
special child seat installed  ..........51
Supplemental restraint system
(SRS) ............................................. 52Emergency tensioning retractor 
(ETR) ............................................. 53
Airbags .............................................. 54
Safety guidelines for the 
seat belt, emergency 
tensioning retractor 
and airbag  .................................... 61
Infant and 
child restraint systems ............... 63
Adjusting telescoping 
steering column  .......................... 65
Rear view mirrors  ............................ 66
Instrument cluster  ........................... 70
Flexible service system (FSS)  ........ 77
Checking engine oil level   .............. 79
Engine oil consumption  .................. 80
Exterior lamp switch  ....................... 81
Headlamp cleaning system  ............ 82
Combination switch  ........................ 83
Hazard warning flasher switch  ..... 85
Climate control ................................. 86
Rear window defroster  .................... 90
Audio and telephone, operation  .... 93
Power windows ................................ 111 

20 Contents - Operation
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
OperationVehicle keys  ...................................... 22
Remote control with 
folding master key  ...................... 22
Start lock-out  .................................... 23
General notes on the 
central locking system  ............... 23
Central locking system  ................... 24
Remote control  ............................. 24
Panic button  .................................. 26
Mechanical keys  ........................... 27
Doors .................................................. 28
Central locking switch  .................... 30
Automatic central locking  .............. 31
Emergency unlocking in 
case of accident  ........................... 32
Trunk ................................................. 33Emergency release 
for trunk lid  ................................. 35
Antitheft alarm system ................... 35
Tow-away alarm  ............................... 37
Seats .................................................. 38
Seat heater ........................................ 42
Seat belts and 
integrated restraint system ....... 44
Seat belts  .......................................... 44
Seat belt nonusage 
warning system ............................ 45
BabySmart
TM airbag 
deactivation system  ....................51
Self-test BabySmart
TM without 
special child seat installed  ..........51
Supplemental restraint system
(SRS) ............................................. 52
Emergency tensioning retractor 
(ETR) ............................................. 53Airbags .............................................. 54
Safety guidelines for the 
seat belt, emergency 
tensioning retractor 
and airbag  .................................... 61
Infant and 
child restraint systems ............... 63
Adjusting telescoping 
steering column  .......................... 65
Rear view mirrors  ............................ 66
Instrument cluster  ........................... 70
Flexible service system (FSS)  ........ 77
Checking engine oil level   .............. 79
Engine oil consumption  .................. 80
Exterior lamp switch  ....................... 81
Headlamp cleaning system  ............ 82
Combination switch  ........................ 83
Hazard warning flasher switch  ..... 85
Climate control ................................. 86 

23 Central locking system
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index 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.
Start lock-out
Important!
Removing the key from the steering lock activates the 
start lock-out. The engine cannot be started.
Turning the key in the steering lock to position 2 
deactivates the start lock-out.
Note:
In case the engine cannot be started, and Á and 
î are shown in the odometer display field, the 
system is not operational. Contact an authorized 
Mercedes-Benz Center or call 1-800-FOR-MERCedes (in 
the USA), or 1-800-387-0100 (in Canada).General notes on the central locking system
If the key in the steering lock is in position 2, the 
vehicle cannot be locked or unlocked with the remote 
control.
If the vehicle cannot be locked or unlocked:
•Check the batteries of the remote control, 
seepage236.
•Synchronize the remote control, see page 237. 

120 Garage door opener
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Programming or reprogramming the integrated 
remote control:
1. Turn key in starter switch to position 1 or 2.
2. Hold the end of the hand-held transmitter of the 
device you wish to train approximately 2 to 5 inches 
(5 cm to 12 cm) away from the surface of the 
integrated remote control located on the inside rear 
view mirror, keeping the indicator lamp in view.
3. Using both hands, simultaneously push the hand-
held transmitter button and the desired integrated 
remote control button. Do not release the buttons 
until completing step 4.
4. The indicator lamp on the integrated remote control 
will flash, first slowly and then rapidly. When the 
indicator lamp flashes rapidly, both buttons may be 
released (the rapid flashing lamp indicates 
successful programming of the new frequency 
signal). To program the remaining two buttons, 
follow steps 1 through 4.Note: 
If, after repeated attempts, you do not successfully 
program the integrated remote control device to learn 
the signal of the hand-held transmitter, the garage door 
opener could be equipped with the “rolling code 
feature”.
Rolling code programming:
To train a garage door opener (or other rolling code 
devices) with the rolling code feature, follow these 
instructions after completing the “Programming” 
portion of this text. (A second person may make the 
following training procedures quicker and easier.)
1. Locate training button on the garage door opener 
motor head unit. Exact location and color of the 
button may vary by garage door opener brand. If 
there is difficulty locating the transmitting button, 
reference to garage door opener operator’s manual. 
2. Press “training” button on the garage door opener 
motor head unit (which activates the “training 
light”). 

121 Garage door opener
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Note:
Following step 2, there are 30 seconds to initiate 
step 3.
3. Firmly press and release the programmed 
integrated remote control transmit button. Press 
and release same button a second time to complete 
the training process. (Some garage door openers 
may require you to do this procedure a third time to 
complete the training.)
4. Confirm the garage door operation by pressing the 
programmed button on the integrated remote 
control transmitter. 
Canadian programming:
During programming, your hand-held transmitter may 
automatically stop transmitting. Continue to press and 
hold the integrated remote control transmitter button 
(note steps 2 through 4 in the “Programming” portion) 
while you press and re-press (“cycle”) your hand-held 
transmitter every two seconds until the frequency 
signal has been learned. The indicator lamp will flash 
slowly and then rapidly after several seconds upon 
successful training.Operation of remote control:
1. Turn key in starter switch to position 1 or 2.
2. Select and press the appropriate button to activate 
the remote controlled device. The integrated remote 
control transmitter continues to send the signal as 
long as the button is pressed – up to 20 seconds.
Erasing the remote control memory:
1. Turn key in starter switch to position 1 or 2.
2. Simultaneously holding down the left and right side 
buttons for approximately 20 seconds, or until the 
control lamp blinks rapidly, will erase the codes of 
all three channels. 

132 Tele Aid
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Te l e  A i d
Important!
The initial activation of the Tele Aid system may only be 
performed by completing 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 electronic key in starter switch to 
position 2.
If you have any questions regarding activation, please 
call the Response Center at 1-800-756-9018 (in the USA) 
or 1-888-923-8367 (in Canada).
(Te l ematic Alarm Identification on Demand)
The Tele Aid system consists of three types of response; 
automatic and manual emergency, roadside assistance 
and information.
The Tele Aid system is operational providing that the 
vehicle’s battery is charged and properly connected, not 
damaged and cellular and GPS coverage is available. To 
activate, press the “SOS” button, the Roadside 
Assistance button• or the Information button¡, 
depending on the type of response required.Shortly after the completion of your Acquaintance 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.
System self-check
Initially, after turning the key in steering lock to 
position 2, malfunctions are detected and indicated (the 
indicator lamps in the “SOS” button, the Roadside 
Assistance button• and the Information 
button¡ stay on longer than 10 seconds or do not 
come on).
Important!
Always make sure that the indicator lamps in the 
“SOS” button, in the “Roadside Assistance” button and 
in the “Information” button do not remain illuminated 
constantly in red after the system self check.
If a malfunction is indicated as outlined above, have the 
system checked at the nearest Mercedes-Benz Center as 
soon as possible. 

135 Tele Aid
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Roadside Assistance button •
Located below the center armrest cover is the Roadside 
Assistance button•. Pressing and holding the 
button (for longer than 2 seconds), will initiate a call to 
a Mercedes-Benz Roadside Assistance dispatcher. The 
button will flash while the call is in progress. The 
Tele Aid system will transmit data generating the 
vehicle identification number, model, color and location 
(subject to availability of cellular and GPS signals).
A voice connection between the Roadside Assistance 
dispatcher and the occupants of the vehicle will be 
established. The nature of the need for assistance can 
then be described. The Mercedes-Benz Roadside assistance dispatcher will 
either dispatch a qualified Mercedes-Benz technician or 
arrange to tow your vehicle to the nearest 
Mercedes-Benz Center. For services such as labor and/
or towing charges may apply. Refer to the Roadside 
Assistance manual for more information. 
These programs are only available in the USA:
•Sign and Drive services: Services such as jump start, 
a few gallons of fuel or the replacement of a flat tire 
with the vehicle spare tire are obtainable,
•Remote Vehicle Diagnostics: This function permits 
the Mercedes-Benz Roadside Assistance dispatcher 
to download malfunction codes and actual vehicle 
data.
Notes:
The indicator lamp in the Roadside Assistance 
button• remains illuminated in red for 
approximately 10 seconds during the system self-check 
after turning key in steering lock to position 2 (together 
with the “SOS” button and the Information 
button¡).
Wa r n i n g !
If you feel at any way in jeopardy when in the 
vehicle (e.g. smoke or fire in the vehicle, vehicle in 
a dangerous road location), please do not wait for 
voice contact after you have pressed the emergency 
button. Carefully leave the vehicle and move to a 
safe location. The Response Center will 
automatically contact local emergency officials 
with the vehicle’s approximate location if they 
receive an automatic “SOS” signal and cannot make 
voice contact with the vehicle occupants. 

191 Contents - Practical hints
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit  ..................................... 192
Stowing items in the vehicle  ........ 192
Fuses ................................................ 192
Hood ................................................. 194
Automatic transmission 
fluid level  ................................... 196
Checking engine oil level  ............. 197
Coolant level  ................................... 198
Adding coolant  ........................... 198
Windshield and 
headlamp washer system  ........ 199
Air pump, spare wheel, 
vehicle tools, 
storage compartment 
(except SLK 32 AMG)  ...............200Ve h i c l e  j a c k  
(except SLK 32 AMG)  .............. 201
Storage box, TIREFIT-Kit, 
air pump, Vehicle tools 
(SLK 32 AMG only)  .................. 202
Wheels ............................................ 203
Tire replacement  ....................... 203
Rotating wheels  ......................... 204
Spare wheel .................................... 205
Spare wheel bolts  ...................... 206
Changing wheels ........................... 207
Inflating the collapsible 
spare tire ......................................212
Storing spare wheel in 
wheel well  ....................................213
TIREFIT ............................................214
Tire inflation pressure  .................. 219Battery .............................................220
Jump starting  ..................................222
Towing the vehicle .........................224
Transmission selector lever, 
manually unlocking ..................229
Exterior lamps  ................................230
Headlamp assembly ................... 231
Taillamp assemblies  ..................234
Changing batteries in 
the remote control  ....................236
Synchronizing 
remote control  ............................237
Raising hardtop manually  ............238
Replacing wiper blade insert  .......243
Antenna ...........................................244
Manual release 
of fuel filler flap  ........................244