oil viscosity MERCEDES-BENZ GLK-Class 2015 X204 Owner's Manual

Starting the engine with the
SmartKey ....................................... 151
Starting with KEYLESS-GO ............. 151
Switching off .................................. 168
Tow-starting (vehicle) ..................... 328
Engine electronics
Problem (malfunction) ................... 155
Engine jump starting
see Jump starting (engine)
Engine oil
Adding ........................................... 302
Additives ........................................ 377
Checking the oil level ..................... 301
Checking the oil level using the
dipstick .......................................... 301
Display message ............................ 249
Filling capacity ............................... 377
Notes about oil grade s................... 377
Notes on oil level/consumption .... 301
Viscosity ........................................ 377
ESP ®
(Electronic Stability Pro-
gram) Deactivating/activating ................... 71
Display message ............................ 236
ETS/4ETS ........................................ 70
Function/note s................................ 70
General notes .................................. 70
Important safety information ........... 71
Trailer stabilization ........................... 72
Warning lamp ................................. 264
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 70
Exhaust check ................................... 170
Exhaust tail pipe (cleaning instruc-
tions) .................................................. 309
Exterior lighting Setting options .............................. 116
see Lights
Exterior mirrors
Adjusting ....................................... 109
Dipping (automatic) ....................... 110
Folding in/out (automatically )....... 110
Folding in/out (electrically) ........... 110
Folding in when locking (on-board computer) ...................................... 233
Out of position (troubleshooting) ... 110
Setting ........................................... 110 Storing settings (memory func-
tion) ............................................... 112
Storing the parking position .......... 111 F
Filler cap see Fuel filler flap
Flat tire
MOExtended tire s.......................... 315
Preparing the vehicle ..................... 314
TIREFIT kit ...................................... 316
see Emergency spare wheel
Floormats ........................................... 298
Fog lamps Switching on/of f........................... 117
Folding the rear bench seat for-
wards/back ....................................... 276
Fording On flooded roads ........................... 174
Front fog lamps
Display message ............................ 245
Switching on/of f........................... 117
Fuel
Additives ........................................ 375
Consumption statistics .................. 223
Displaying the current consump-
tion ................................................ 224
Displaying the range ...................... 224
Driving tip s.................................... 170
Fuel gauge ....................................... 33
Grade (gasoline )............................ 374
Important safety notes .................. 373
Premium-grade unleaded gaso-
line ................................................. 374
Problem (malfunction) ................... 165
Quality (diesel )............................... 375
Refueling ........................................ 162
Tank content/reserve fue l............. 374
Fuel filler flap
Opening ......................................... 164
Fuel filter (display message) ............ 250
Fuel level Calling up the range (on-board
computer) ...................................... 224
Fuel tank
Capacity ........................................ 374
Problem (malfunction) ................... 165 10
Index

Engine oil
General notes !
Never use engine oil or an oil filter of a
specification other than is necessary to ful- fill the prescribed service intervals. Do not
change the engine oil or oil filter in order to
achieve longer replacement intervals than
those prescribed. You could otherwise
cause engine damage or damage to the
exhaust gas aftertreatment.
Follow the instructions in the service inter-
val display regarding the oil change. Other-
wise, you may damage the engine and the
exhaust gas aftertreatment.
When handling engine oil, observe the impor- tant safety notes on service products
(Y page 373).
The engine oils are matched to the perform-
ance of Mercedes-Benz engines and service
intervals. You should therefore only use
engine oils and oil filters that are approved for vehicles with maintenance systems.
For a list of approved engine oils and oil filters, consult an authorized Mercedes-Benz Cen-
ter. Or visit the website
http://bevo.mercedes-benz.com.
The table shows which engine oils have been
approved for your vehicle. Model Engine
model MB
Approval GLK 350
GLK 350 4MATIC
276 229.5
GLK 250 Blue-
TEC
651 228.51,
229.31,
229.51 i
MB approval is indicated on the oil con-
tainers.
Filling capacities The following values refer to an oil change
including the oil filter. Model Capacity
All models
6.9 US qt (6.5
l) Additives
!
Do not use any additives in the engine oil.
This could damage the engine.
Engine oil viscosity Viscosity describes the flow characteristics
of a fluid. If an engine oil has a high viscosity,
this means that it is thick; a low viscosity
means that it is thin.
Select an engine oil with an SAE classification (viscosity) suitable for the prevailing outside
temperatures. The table shows you which
SAE classifications are to be used. The low-
temperature characteristics of engine oils
can deteriorate significantly, e.g. as a result
of aging, soot and fuel deposits. It is therefore
strongly recommended that you carry out reg- ular oil changes using an approved engine oil
with the appropriate SAE classification. Brake fluid
G
WARNING
The brake fluid constantly absorbs moisture
from the air. This lowers the boiling point of
the brake fluid. If the boiling point of the brake fluid is too low, vapor pockets may form in the brake system when the brakes are applied
hard. This would impair braking efficiency.
There is a risk of an accident. Service products and filling capacities
377Technical data
Z