
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 

188 Malfunction and indicator lamps
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index
Low engine oil level warning lamp
With the key in steering lock position 2, the 
oil level warning lamp comes on. It should 
go out immediately when the engine is 
running.
If the warning lamp does not go out after starting the 
engine, or comes on with the engine running and at 
operating temperature, the engine oil level has dropped 
to approximately the minimum mark on the dipstick.
When this occurs, the warning lamp will first come on 
intermittently and then stay on if the oil level drops 
further.
If no leaks are noted, continue to drive to the nearest 
service station where the engine oil should be topped to 
the “full” mark on the dipstick with an approved oil.
The low engine oil level warning light should not be 
ignored. Extended driving with the light illuminated 
could result in serious engine damage that is not 
covered by the Mercedes-Benz Limited Warranty.
In addition to the warning lamp, the engine oil level 
should be periodically checked with the dipstick, for 
example during a fuel stop, or before a long trip, see 
page 197.Charge indicator lamp
Should the charge indicator lamp fail to 
come on prior to starting when the key is in 
steering lock position 2 or should it fail to go 
out after starting or during operation, this indicates a 
malfunction which must be repaired immediately at an 
authorized Mercedes-Benz Center.
If the charge indicator lamp comes on, or a loss of power 
steering assistance is noticeable while the engine is 
running, this may indicate that one of the two poly-V-
belts has broken. Should this condition occur, the poly-
V-belt must be replaced before continuing to operate the 
vehicle. Otherwise, the engine may overheat due to an 
inoperative water pump which may result in damage to 
the engine.
Do not continue to drive the vehicle with the charge 
indicator lamp illuminated. Doing so could result in 
serious engine damage that is not covered by the 
Mercedes-Benz Limited Warranty. 

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 

218 Tires, wheels
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Note:
Do not operate electric air pump longer that 6 minutes 
without interruption. Air pump could overheat! After air 
pump has cooled off, operate air pump again.
16. To switch off air pump, turn key in steering lock to 
position 0.
17. Reinstall valve tire cap.
18. Drive vehicle to distribute the sealant evenly inside 
the tire.Notes:
If TIREFIT is liquid, clean water and a damp cloth will 
remove the material from the vehicle or tire and wheel 
components. Once TIREFIT sealing material had dried, 
it can easily be peeled off and properly discarded.
Replace TIREFIT every 4 years.
Wa r n i n g !
If a tire pressure of 26 psi (1.8 bar) is not attained, 
tire is too severely damaged for TIREFIT to provide 
a reliable tire repair.In this case TIREFIT can not properly seal the tire.Do not drive the vehicle.Contact the nearest Mercedes-Benz Center or call 
Roadside Assistance.
Wa r n i n g !
Do not exceed vehicle speed of 50 mph (80 km / h). 
A TIREFIT repair is not designed to operate at 
higher speeds.Vehicle handling characteristics may change.After driving vehicle for an initial 10 minutes, 
check tire pressure. If tire pressure has fallen 
below 20 psi (1.3 bar) do not continue to drive the 
vehicle.If tire pressure is at least 20 psi (1.3 bar), inflate 
tire to correct pressure (see label on fuel filler 
flap), and drive vehicle to nearest tire repair 
facility to have tire repaired or replaced.Recommended duration of use: 300 miles (500 km) 
at 50 mph (80 km / h) with the recommended tire 
pressure. 

269 Fuels, coolants, lubricants etc. - capacities
Te ch n i c a l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hints Car care Index Premium unleaded gasoline
Caution!
To maintain the engine’s durability and performance, 
premium unleaded gasoline must be used. If premium 
unleaded is not available and low octane fuel is used, 
follow these precautions:
•have the fuel tank filled only partially with unleaded 
regular and fill up with premium unleaded as soon 
as possible,
•avoid full throttle driving and abrupt acceleration,
•do not exceed 
2/3 of maximum accelerator pedal 
position, if the vehicle is fully loaded or operating in 
mountainous terrain.Fuel requirements
Use only Premium unleaded meeting ASTM
standard D 439:
The octane number (posted at the pump) must be 
91 min. It is an average of both the Research (R) octane 
number and the Motor (M) octane number: [(R+M) / 2]. 
This is also known as ANTI-KNOCK INDEX.
Unleaded gasoline containing oxygenates such as 
Ethanol, IPA, IBA and TBA can be used provided the 
ratio of any one of these oxygenates to gasoline does not 
exceed 10%, MTBE not to exceed 15%.
The ratio of Methanol to gasoline must not exceed 3% 
plus additional cosolvents.
Using mixtures of Ethanol and Methanol is not allowed. 
Gasohol, which contains 10% Ethanol and 90% unleaded 
gasoline, can be used.
These blends must also meet all other fuel requirements 
such as resistance to spark knock, boiling range, vapor 
pressure etc..