
Exterior rear view mirror parking
position  ............................................ 85
Exterior rear view mirrors  ................84
Interior rear view mirror  ...................84
Memory function .............................. 86
Power-folding exterior rear view
mirrors  ............................................. 85
Vanity mirror  .................................. 196
MON (Motor Octane Number)  .......... 337
Motor Octane Number see MON                                                   
MP3 mode  .......................................... 146
Multifunction display  ........................ 112
Symbol messages  ..........................270
Text messages  ............................... 264
Vehicle status messages  ...............262
Multifunction display messages  
ABS  ....................................... 271, 272
Active headlamps  .......................... 283
Advanced TPMS  ............................. 268
Air bags  ......................................... 264
Alternator  ...................................... 281
Battery  ........................................... 281
Brake fluid  ..................................... 273
Brake pads ..................................... 270
Cargo compartment ....................... 277
Child seat  ...................................... 267
Coolant  .......................................... 279
Corner-illuminating lamps  ..............286
Cruise control  ................................ 267
Doors  ............................................. 277
EBP  ................................................ 272
Engine oil  ....................................... 282
ESP ®
 ............................. 271, 272, 274
Fog lamps  .............................. 283, 285
Front passenger front air bag  ........264
Gas cap .......................................... 282
High-beam lamps  ........................... 284
Hood  .............................................. 277
License plate lamps  .......................285
Light sensor  ................................... 285
Low-beam lamps ............................ 285
Parking brake  ................................ 272
Parking lamps  ................................ 284
Power steering  ............................... 279
Reserve fuel  ................................... 282
Reverse lamp  ................................. 283
Side marker lamps  .........................284SmartKey ....................................... 277
SmartKey with KEYLESS-GO  ..........277
SRS  ................................................ 275
Tailgate  .......................................... 277
Tail lamps  ...................................... 286
Tele Aid  .......................................... 275
Tire inflation pressure  ............268, 288
Tire pressure monitor  ....................268
Tires  ...................................... 268, 288
Trailer brake lamps  ........................286
Trailer tail lamps  ............................ 286
Trailer turn signal lamps  ................287
Turn signals  ................................... 287
Multifunction steering wheel  
Adjustment  ...................................... 82
Buttons  .......................................... 110
Cleaning ......................................... 256
Easy-entry/exit feature  ...........83, 124
Memory function .............................. 86
Overview  .......................................... 29
N
Navigation system see Separate operating instructions         
Navi menu  .......................................... 115
NECK-PRO active front head
restraints  ............................................. 51
Resetting  ....................................... 301
Nets, parcel  ....................................... 188
Normal occupant weight  .................. 240
Number, vehicle identification
(VIN)  ................................................... 329
O
Occupant Classification System see OCS (Occupant Classification
System)                                                     
Occupant distribution  ....................... 240
Occupant safety  
Air bags  ........................................... 37
BabySmart™  .................................... 45
Children and air bags  .......................37
Children in the vehicle  .....................53
Child seat anchors – LATCH-type
(ISOFIX)  ........................................... 57
Fastening the seat belts ................... 49
12IndexX204_AKB; 3; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T19:16:58+02:00 - Seite 12 

Display messagesPossible causes/consequences and M Solutions?Coolant 
Low Stop 
Vehicle! 
Turn 
Engine OffThe poly-V-belt could be broken.XStop the vehicle immediately as soon as it is safe to do so.XTurn off the engine immediately.XCheck the poly-V-belt.XIf it is broken:  Do not continue to drive. Otherwise the
engine will overheat due to an inoperative water pump
which may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.XIf it is intact:  Do not continue to drive the vehicle with this
message displayed. Doing so could result in serious engine
damage that is not covered by the Mercedes-Benz Limited
Warranty.XObserve the coolant temperature gauge in the instrument
cluster.XDrive to the nearest authorized Mercedes-Benz Center
immediately.?The radiator cooling fan is malfunctioning.XObserve the coolant temperature gauge in the instrument
cluster.
If the coolant temperature is below  248‡ (120†),  you may
continue driving to an authorized Mercedes-Benz Center.XAvoid placing heavy loads on the engine (e.g. by driving
uphill) as well as stop-and-go traffic.XHave the fan replaced as soon as possible.#The battery is no longer charging.
Possible causes:
R alternator malfunctioning
R broken poly-V-belt
R a malfunction in the electronic systemXStop immediately in a safe location or as soon as it is safe
to do so and check the poly-V-belt.XIf it is broken:  Do not continue to drive. Otherwise the
engine will overheat due to an inoperative water pump
which may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.XIf it is intact:  Drive to the nearest authorized Mercedes-
Benz Center immediately. Adjust driving to be consistent
with reduced braking responsiveness.Vehicle status messages in the multifunction display281Practical hintsX204_AKB; 3; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T19:16:58+02:00 - Seite 281Z 

Vehicle specification GLK 350 
(204.956)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
Benz Center for the corresponding data of all
special bodies and special equipment.
i The GLK 350 is available in the USA only.Engine GLK 350Engine, type272Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders6Bore3.66 in (92.90 mm)Stroke3.39 in (86.00 mm)Total piston 
displacement213.5 cu in
(3  498 cm 3
)Compression 
ratio10.7:1Output acc. to 
SAE J 1349 14268 hp/6
 000 rpm
(200 kW/6  000 rpm)Maximum torque 
acc. to SAE J 1349258 lb-ft/
2  400 - 5  000 rpm
(350 Nm/
2  400 - 5  000 rpm)Maximum engine 
speed6  500 rpmFiring order1-4-3-6-2-5Poly-V-belt2  404 mmElectrical system GLK 350Alternator14 V/150 AStarter motor12 V/1.4 kWElectrical system GLK 350Battery12 V/70 AhSpark plugs, typeBosch J 7 MPP33Spark plugs, 
electrode gap0.031 in (0.8 mm)Spark plugs, 
tightening torque15 - 18 lb-ft
(20 - 25 Nm)Main dimensions GLK 350Overall vehicle 
length178.3 in (4  528 mm)179.4 in
(4  556 mm) 15Overall vehicle 
width 1679.4 in (2
 016 mm)Overall vehicle 
height66.9 in (1  698 mm)66.4 in (1  686 mm) 15Wheelbase108.5 in (2
 755 mm)Track, front61.7 in (1  568 mm)Track, rear62.5 in (1  589 mm)Ground clearance7.9 in (201 mm) 17Turning circle37.7 ft (11.5 m)Weights GLK 350Roof loadmax. 165 lb (75 kg)
Vehicle specification GLK 350 
4MATIC (204.987)
The quoted data apply only to the standard
vehicle. Contact an authorized Mercedes-
14 Premium fuel required. Performance may vary with fuel octane rating.
15 Vehicles with AMG Sport Package.
16 Exterior rear view mirrors folded out.
17 Operational vehicle (vehicle with driver, all liquids, and full fuel tank).330Vehicle specification GLK 350 4MATIC (204.987)Technical data
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Benz Center for the corresponding data of all
special bodies and special equipment.Engine GLK 350 4MATICEngine, type272Mode of operation4-stroke engine,
gasoline injectionNo. of cylinders6Bore3.66 in (92.90 mm)Stroke3.39 in (86.00 mm)Total piston 
displacement213.5 cu in
(3  498 cm 3
)Compression 
ratio10.7:1Output acc. to 
SAE J 1349 18268 hp/6
 000 rpm
(200 kW/6  000 rpm)Maximum torque 
acc. to SAE J 1349258 lb-ft/
2  400 - 5  000 rpm
(350 Nm/
2  400 - 5  000 rpm)Maximum engine 
speed6  500 rpmFiring order1-4-3-6-2-5Poly-V-belt2  404 mmElectrical system GLK 350 4MATICAlternator14 V/150 AStarter motor12 V/1.4 kWBattery12 V/70 AhSpark plugs, typeBosch J 7 MPP33Electrical system GLK 350 4MATICSpark plugs, 
electrode gap0.031 in (0.8 mm)Spark plugs, 
tightening torque15 - 18 lb-ft
(20 - 25 Nm)Main dimensions GLK 350 4MATICOverall vehicle 
length178.3 in (4  528 mm)179.4 in
(4  556 mm) 19Overall vehicle 
width 2079.4 in (2
 016 mm)Overall vehicle 
height66.9 in (1  698 mm)66.4 in (1  686 mm) 19Wheelbase108.5 in (2
 755 mm)Track, front61.7 in (1  568 mm)Track, rear62.5 in (1  589 mm)Ground clearance7.9 in (201 mm) 21Turning circle37.7 ft (11.5 m)Weights GLK 350 4MATICRoof loadmax. 165 lb (75 kg)
Rims and tires
Notes
!  Only use tires which have been tested and
approved by Mercedes-Benz. Tires
approved by Mercedes-Benz are developed
to provide best possible performance in
conjunction with the driving safety systems
on your vehicle such as the ABS or the
18 Premium fuel required. Performance may vary with fuel octane rating.
19 Vehicles with AMG Sport Package.
20 Exterior rear view mirrors folded out.
21 Operational vehicle (vehicle with driver, all liquids, and full fuel tank).Rims and tires331Technical dataX204_AKB; 3; 23, en-USd2ureepe,Version: 2.11.8.12009-07-16T19:16:58+02:00 - Seite 331Z