Front air bagssee Air bags                                              
Front axle oil  ...................................... 334
Front lamps see Headlamps                                         
Front passenger front air bag  ............ 40
Messages in the multifunction
display  ........................................... 264
Front passenger front air bag off
indicator lamp (Canada only)  ..... 45, 297
Front passenger front air bag off
indicator lamp (USA only)  .......... 42, 298
Front seat head restraints see Head restraints                                   
Fuel  ..................................................... 212
Additives  ........................................ 337
Capacity, fuel tank  .........................335
Drive sensibly–safe fuel  .................243
Fuel consumption statistics  ...........114
Fuel filler flap and cap  ...................213
Fuel tank reserve warning lamp  .....294
Premium unleaded gasoline  ...........336
Refueling ........................................ 212
Requirements  ................................ 337
Fuel filler flap  ..................................... 213
Opening manually  ..........................301
Fuel gauge  ................................... 28, 110
Fuels, coolants, lubricants etc.  ........ 334
Fuel tank  
Capacity  ........................................ 335
Fuel filler flap and cap  ...................213
Refueling ........................................ 212
Fuses  .................................................. 325
G
Garage door opener  .................... 32, 205
Gasoline see Fuel                                                     
GAWR (Gross Axle Weight Rating)  ... 240
Gear range  ......................................... 106
Indicator  ........................................ 106
Limiting  .......................................... 107
Shifting into optimal  ......................108
Gear selector lever  ............................ 103
Cleaning ......................................... 256
Gearshift pattern  ........................... 103
Lock ......................................... 99, 104
Shifting procedure  .........................104
Transmission position indicator  .....104
Transmission positions  ..................104
Generator
see Alternator                                           
Global locking/unlocking
see Key, SmartKey                                    
Glove box  ........................................... 192
Gross Axle Weight Rating see GAWR                                                 
Gross Trailer Weight
see GTW                                                    
Gross Vehicle Weight
see GVW                                                    
Gross Vehicle Weight Rating
see GVWR                                                 
GTW (Gross Trailer Weight)  .............. 240
GVW (Gross Vehicle Weight)  ............ 240
GVWR (Gross Vehicle Weight
Rating)  ................................................ 240
H
Halogen headlamps see Headlamps                                         
Hard plastic trim items, cleaning  .... 256
Hazard warning flasher  ....................... 90
Headlamp cleaning system  ................ 91
Headlamps  
Active Bi-Xenon headlamps  .............87
Automatic headlamp mode  ..............88
Bi-Xenon  .................................. 87, 304
Cleaning lenses  ............................. 254
Cleaning system  .............................. 91
Daytime running lamp mode  ............88
Delayed shut-off  ............................ 122
Halogen  ......................................... 304
High-beam flasher ............................ 90
High-beam headlamps  .....................90
Low-beam headlamps  ......................88
Messages in the multifunction
display  ........................................... 283
Replacing bulbs  ............................. 303
Switch  .............................................. 87
Headliner, cleaning and care of  ....... 256
Head restraints  .................................... 78
Adjustment  ................................ 78, 80
Folding back  .................................... 80
Index9X204_AKB; 3; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T19:16:58+02:00 - Seite 9 
ModelCapacityFuels, coolants, 
lubricants, etc.Fuel tankAll models17.4 US gal (66.0 l)Premium unleaded
gasoline (Minimum
Posted Octane 91
[Avg. of
96 RON/86 MON])Fuel tank 
reserveAll modelsapprox. 2.1 US gal (8.0 l)Air 
conditioning 
systemAll models—R134a refrigerant
and special
PAG lubricant oil
(never R 12)Washer system 
and headlamp 
cleaning 
systemAll models6.3 US qt (6.0 l)MB Windshield
Washer
Concentrate 27
( Y  page 339)
Washer fluid mixing
ratio ( Y page 339)Approved engine oils
Engine oils are specifically tested for their
suitability in our engines and durability for our
service intervals. Therefore, only use
approved engine oils and oil filters required
for vehicles with the Maintenance System.
For a listing of approved engine oils and oil
filters, contact an authorized Mercedes-Benz
Center or visit  www.mbusa.com  (USA only).
!  Using engine oils and oil filters of a
specification other than those expressly
required for the Maintenance System, or
changing of oil and oil filter at change
intervals longer than those called for by the
Maintenance System will result in engine or
emission control system damage not
covered by the Mercedes-Benz Limited
Warranty.
Please follow Maintenance System
recommendations for scheduled oil
changes. Failure to do so will result in
engine or emission control system damagenot covered by the Mercedes-Benz Limited
Warranty.
Mercedes-Benz recommends MOBIL OIL.
Use the table below to determine the
MB sheet number.ModelEngine,
typeMB sheet
numberGLK 350 28272229.5GLK 350 4MATIC272229.5
i
MB sheet numbers are printed on the
outside of oil containers.
27 Mixed with water or commercially available premixed washer solvent/antifreeze.
28 USA only.Fuels, coolants, lubricants, etc.335Technical dataX204_AKB; 3; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T19:16:58+02:00 - Seite 335Z