Page 7 of 329

4 Contents
Malfunction and indicator lamps 
in the center console  ................232
AIRBAG OFF 
indicator lamp .............................232
Malfunction and warning 
messages in the 
multifunction display  ...............233
DISPLAY DEFECTIVE 
(engine control unit) ..................234
DISPLAY DEFECTIVE 
(several systems)  ........................234
BATTERY/ALTERNATOR  ...........235
ABS-SYSTEM  ...............................236
BRAKE ASSIST  ...........................236
BRAKE LINING WEAR  ..............237
BRAKE FLUID  .............................237
PARKING BRAKE  .......................238
ENGINE FAN  ...............................238
COOLANT 
(coolant level)  .............................239
COOLANT TEMP. 
(coolant temperature)  ................240
LIGHTING SYSTEM  .................... 241LIGHT SENSOR  .......................... 242
STEER. WHEEL ADJUST.  .......... 242
ENGINE OIL LEVEL  ................... 243
ELEC. STABIL. PROGRAM. 
(Electronic stability 
program)  ..................................... 244
REMOVE KEY  ............................. 244
WASHER FLUID  ......................... 245
TELE AID ..................................... 246
Practical hintsFirst aid kit  ..................................... 248
Shelf below rear window .............. 248
Stowing things in 
the vehicle  ................................. 248
Fuses  ............................................... 249
Hood  ................................................ 251
Checking engine oil level ............. 253
Automatic transmission 
fluid level  ................................... 254
Coolant level ................................... 254
Adding coolant  ........................... 255Windshield washer / headlamp 
cleaning system  ........................256
Windshield and 
headlamp washer 
fluid mixing ratio  .......................256
Spare wheel, vehicle tools, 
storage compartment ................257
Vehicle jack .....................................258
Wheels  .............................................259
Tire replacement  ........................259
Rotating wheels  ..........................260
Spare wheel  .................................... 261
Changing wheels  ...........................262
Tire inflation pressure  ..................267
Battery  .............................................268
Jump starting  ..................................270
Towing the vehicle  .........................272
Transmission selector lever, 
manually unlocking  ................... 274
Exterior lamps  ................................275
Headlamp assembly ................... 276
Taillamp assemblies  ..................278
Adjusting headlamp aim ...............280 
     
        
        Page 250 of 329

247 Contents – Practical hints
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit  .....................................248
Shelf below rear window  ..............248
Stowing things in 
the vehicle  ..................................248
Fuses ................................................249
Hood  ................................................. 251
Checking engine oil level  .............253
Automatic transmission 
fluid level  ...................................254
Coolant level  ...................................254
Adding coolant  ...........................255
Windshield washer / headlamp 
cleaning system .........................256
Windshield and 
headlamp washer 
fluid mixing ratio  .......................256Spare wheel, vehicle tools, 
storage compartment  ............... 257
Vehicle jack  .................................... 258
Wheels  ............................................ 259
Tire replacement  ....................... 259
Rotating wheels  ......................... 260
Spare wheel .................................... 261
Changing wheels  ........................... 262
Tire inflation pressure  ................. 267
Battery ............................................. 268
Jump starting  ................................. 270
Towing the vehicle  ........................ 272
Transmission selector lever, 
manually unlocking  ...................274
Exterior lamps  ............................... 275
Headlamp assembly  ...................276
Taillamp assemblies  .................. 278Adjusting headlamp aim ...............280
Changing batteries in the 
electronic main key  ..................283
Synchronizing 
remote control  ............................285
Emergency operation of 
sliding/pop-up roof  ...................286
Manual release for 
fuel filler flap .............................287
Replacing wiper blade 
insert  ...........................................287
Trunk lamp  .....................................289
Roof rack  .........................................289 
     
        
        Page 257 of 329
254 Engine compartment
Te ch n ica l
data Instruments 
and controlsOperation DrivingInstrument 
cluster displayPractical hintsCar care Index
Automatic transmission fluid level
The transmission has a permanent fill of automatic 
transmission fluid.
Regular automatic transmission fluid level checks and 
changes are not required. For this reason the dipstick is 
omitted.
If you notice fluid leaks or gear shifting malfunctions, 
have your authorized Mercedes-Benz Center check the 
transmission fluid level.Coolant level
To check the coolant level, the vehicle must be parked 
on level ground and the engine stopped.
Check coolant level only when coolant is cold.
The coolant level should reach the black top part of the 
reservoir.
P20.30-2032-26