
3 ContentsSupplemental restraint system 
(SRS) indicator lamp .................. 184
Fuel reserve and fuel cap 
placement warning  .................... 185
Electronic stability program 
(ESP) — warning lamp  ............... 185
BAS / ESP malfunction 
indicator lamp ............................. 185
ABS malfunction 
indicator lamp ............................. 186
Telescoping steering column 
warning lamp  .............................. 186
Low engine coolant level 
warning lamp  .............................. 187
Low windshield and headlamp 
washer system fluid level 
warning lamp  .............................. 187
Low engine oil level 
warning lamp  .............................. 188
Charge indicator lamp  ............... 188
Exterior lamp failure i
ndicator lamp  .............................. 189
Additional function 
indicator lamps 
(in the odometer display) .......... 189Malfunction and indicator lamp 
in the center console  ................190
AIRBAG OFF indicator lamp  .....190
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)  .............. 200
Ve h i c l e  j a c k  
(except SLK 32 AMG)  .............. 201Storage 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  .................. 219
Battery .............................................220
Jump starting  ..................................222
Towing the vehicle .........................224
Transmission selector lever, 
manually unlocking ..................229
Exterior lamps  ................................230
Headlamp assembly ................... 231
Taillamp assemblies  ..................234 

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. 

163 Driving instructions
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Snow chains
Use only snow chains that are tested and recommended 
by Mercedes-Benz. Your authorized Mercedes-Benz 
Center will be glad to advise you on this subject. 
Chains should only be used on the rear wheels. Follow 
the manufacturer’s mounting instructions. 
Snow chains should only be driven on snow covered 
roads at speeds not to exceed 30 mph (50 km / h). 
Remove chains as soon as possible when driving on 
roads without snow.
When driving with snow chains, press the ESP control 
switch to OFF, see page 175.
Important!
Use of snow chains is not permissible with tire size 
225 / 50 R 16, with the collapsible spare tire, or with tire 
size 245 / 40 ZR 17 (Sport Package).Winter driving instructions
The most important rule for slippery or icy roads is to 
drive sensibly and to avoid abrupt acceleration, braking 
and steering maneuvers. Do not use the cruise control 
system under such conditions.
When the vehicle is in danger of skidding, move 
selector lever to position “N” or in case of manual 
transmission declutch. Try to keep the vehicle under 
control by corrective steering action.
Road salts and chemicals can adversely affect braking 
efficiency. Increased pedal force may become necessary 
to produce the normal brake effect. We therefore 
recommend depressing the brake pedal periodically 
when traveling at length on salt-strewn roads. This can 
bring road salt impaired braking efficiency back to 
normal. A prerequisite is, however, that this be done 
without endangering other drivers on the road.
If the vehicle is parked after being driven on salt treated 
roads, the braking efficiency should be tested as soon as 
possible after driving is resumed while observing the 
safety rules in the previous paragraph. 

174 Driving systems
Te ch n i c a l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Notes:
The malfunction indicator lamp for the ESP is combined 
with that of the BAS.
The yellow BAS / ESP malfunction indicator lamp in the 
instrument cluster and the yellow ESP warning 
lampv in the speedometer dial come on with the 
key in steering lock position 2. They should go out with 
the engine running.
If the BAS / ESP malfunction indicator lamp comes on 
continuously with the engine running, a malfunction 
has been detected in either system. Only partial engine 
output will be available.
If the BAS malfunctions, the brake system functions in 
the usual manner, but without BAS.
Have the BAS or ESP checked at your authorized 
Mercedes-Benz Center as soon as possible.
With the ABS malfunctioning, the ESP is also switched 
off.Driving the vehicle with varied size tires will cause the 
wheels to rotate at different speeds, therefore the ESP 
may activate (yellow ESP warning lamp in speedometer 
dial comes on). For this reason, all wheels, including the 
spare wheel, must have the same tire size.
When testing the parking brake on a brake test 
dynamometer, the engine must be shut off. Otherwise, 
the ESP will immediately be engaged and will apply the 
rear wheel brakes.
In winter operation, the maximum effectiveness of the 
ESP is only achieved with Mercedes-Benz recommended 
M+S rated radial-ply tires and / or snow chains.
Synchronizing ESP
If the power supply was interrupted (battery 
disconnected or empty), the BAS / ESP malfunction 
indicator lamp may be illuminated with the engine 
running.
Turn steering wheel completely to the left and then to 
the right. The BAS / ESP malfunction indicator lamp 
should go out. 

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 

205 Tires, wheels
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index Spare wheel
Important!
SLK 230 Kompressor:
The spare wheel rim size is 4 
1/2 B x 15 H 2 with 
inflatable, collapsible tire, size 165-15 89 P.
SLK 320:
The spare wheel rim size is 4 
1/2 B x 16 H 2 with 
inflatable, collapsible tire, size 165/70-16 92 P.
You should inflate the spare tire using the supplied air 
pump.
Note:
The model SLK 32 AMG is equipped with TIREFIT, 
see page 214.In the case of a flat tire, you may temporarily use the 
spare wheel, while observing the following restrictions:
•Do not exceed vehicle speed of 50 mph (80 km / h).
•Drive to the nearest tire repair facility to have the 
flat tire repaired or replaced as appropriate.
•Do not operate vehicle with more than one 
collapsible spare wheel / tire mounted.
For additional information, see page 261. 

206 Tires, wheels
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Spare wheel bolts
1Wheel bolt for wheel rim size 7 J x 16 H 2
and 8 J x 16 H 2
Wheel bolt for AMG wheel rim size 7 
1/2 J x 17 H 2 
and 8 
1/2 J x 17 H 2
Wheel bolt for spare wheel rim size 4 
1/2 B x 16 H 2
2Wheel bolt for spare wheel rim size 4 
1/2 B x 15 H 2 
(located with tire air pump)Note:
Wheel bolts (2) must be used when mounting spare 
wheel rim size 4 
1/2 B x 15 H 2.
21
P40.10-2154-26
Wa r n i n g !
Be sure to use the original length wheel bolts when 
remounting the original wheel after it has been 
repaired. 

210 Tires, wheels
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Important!
For ease of handling and proper unfolding of tire during 
its inflation when installing spare wheel with 
collapsible tire, first mount the spare wheel, then inflate 
the tire.
10. Clean contact surfaces of wheel and wheel hub. 
Install wheel on wheel hub. Insert proper wheel 
bolts and tighten them snugly.
Unscrew the alignment pin (4) to install the last 
wheel bolt.
11. Inflate collapsible spare tire. (See next page for 
detailed instructions).Important!
When installing spare wheel with collapsible tire, make 
certain to use the correct wheel bolts, supplied in the 
vehicle tool kit.
To avoid paint damage, place wheel flat against hub and 
hold it there while installing first wheel bolt.
12. Lower vehicle. Remove jack and insert jack tube 
cover.