Tow-starting (vehicle) ..................... 242
Engine electronics
Notes ............................................. 271
Problem (malfunction) ...................1 20
Engine oil
Adding ...........................................2 18
Additives ........................................ 278
Checking the oil level (on-board
computer) ...................................... 216
Checking the oil level using the
dipstick .......................................... 217
Display message ............................ 186
Filling capacity ............................... 278
Information about oil consump-
tion ................................................ 278
Mixing ............................................ 278
Notes about oil grades ................... 277
Oil change ...................................... 278
Oil level (note) ............................... 216
Viscosity ........................................ 277
Warning lamp ................................. 195
Engine speed setting (working
mode) ................................................. 151
Engine, jump-starting ....................... 238
ESP
®(Electronic Stability Pro-
gram)
Display message ............................ 181
Important safety information ........... 55
Indicator lamp ................................ 194
Warning lamp ................................. 190
Exhaust check ................................... 131
Exhaust gas aftertreatment
DEF level indicator ......................... 159
DEF reducing agent ....................... 275
Diesel Exhaust Fluid (DEF) ............. 275
Display messages (vehicles with
steering wheel buttons) ................. 184
Display messages (vehicles with-
out steering wheel buttons) ........... 175
Indicator lamp ....................... 193, 197
Malfunction ....................................1 84
Refilling DEF .................................. 126
Exterior lighting
see Lights
Exterior mirrors
Adjusting ......................................... 78
Important safety notes .................... 78 Eyegl
asses compartment
................. 201
F
Fire extinguisher............................... 238
First-aid kit ......................................... 237
Flat tire
Changing a wheel/mounting the
spare wheel ................................... 263
General notes ................................ 262
Fog lamps
Switching on/off .............................. 81
Fogged up-up windows
see Climate control
Folding seat ......................................... 74
Frequencies
Mobile phone ................................. 271
Two-way radio ................................ 271
Front fog lamps
Switching on/off .............................. 81
Front interior light
Replacing bulbs ............................... 93
Front windshield
see Windshield
Fuel
Additives (diesel) ........................... 274
Consumption information .............. 275
Consumption statistics .................. 171
Diesel at very low outside temper-atures ............................................ 274
Display message ............................ 185
Driving tips ....................................1 30
Fuel gauge ..................................... 159
Problem (malfunction) ................... 126
Quality (diesel) ............................... 274
Refueling ........................................ 124
Showing the range (on-board
computer with steering wheel but-
tons) .............................................. 171
Showing the range (vehicles with
steering wheel buttons) ................. 171
Tank content/reserve fuel ............. 274
Fuel filter with water separator
draining ......................................... 220
Indicator lamp ................................ 198
Fuel gauge ......................................... 159
Fuel tank
Problem (malfunction) ................... 126
Index11
When handling, storing and disposing of fuels,
please observe the relevant regulations.
Tank contents
Depending on equipment, the total capacity of
the fuel tank may vary.
Vehicle typeTotal capa-cityof which
reserve fuel
2500
3500Approx-imately
26.4 US gal (100 l)Approx-
imately
5.0 US gal
(19 l)
All-wheel-
drive vehi-
clesApprox-
imately
24.6 US gal (93 l)
Diesel
Fuel grade
GWARNING
If you mix diesel fuel with gasoline, the flash
point is lower than that of pure diesel fuel.
When the engine is running, exhaust system
components could overheat without being
noticed. There is a risk of fire.
Never refuel with gasoline. Never mix gasoline with diesel fuel.
!Filter the fuel before transferring it to the
vehicle if you are refueling the vehicle from
barrels or containers.
This will prevent malfunctions in the fuel sys-
tem due to contaminated fuel.
!You will damage the diesel engine if you do
not refuel with ULSD or a diesel fuel with a
sulfur content of more than 15 ppm.
!Do not use the following:
Rmarine diesel
Rheating oil
Rvegetable oil
Rgasoline
Rparaffin
Rkerosene
Do not mix such fuels with diesel fuel and do
not use any special additives. This can other- wise lead to engine damage. This does not
include flow improvers. For further informa-
tion, see "Flow improvers".
Usually you will find information about the fuel
grade on the filling pump. If there is no identifi-
cation on the filling pump, consult a gas station
attendant.
For more information about refueling
(
Ypage 124).
Diesel at very low outside temperatures
GWARNING
If you heat fuel system components, e.g. with
a hot-air gun or open flame, these compo-
nents could be damaged. This can cause fuel
to escape and ignite. Depending on the type
of damage, fuel may also not escape until the
engine is running. There is a risk of fire and
explosion.
Never heat fuel system components. Contact
a qualified specialist workshop to rectify the
malfunction.
Refill only with commercially available ULTRA-
LOW SULFUR DIESEL (ULSD, maximum sulfur
content 15 ppm), which fulfills the ASTM D975
standard.
The flow properties of diesel may be inadequate
at low outside temperatures due to paraffin sep-
aration.
iMalfunctions resulting from paraffin sepa-
ration can only be rectified by heating the
entire fuel system. Park the vehicle in a
heated garage, for example.
To prevent operating problems, diesel with bet-
ter flow qualities is available during the winter
months. You can obtain information at the gas
station or from your fuel supplier.
Your vehicle is equipped with a fuel preheating
system. This improves the flow properties of the
diesel by approximately 14.5 ‡ (8 †). ULTRA-
LOW SULFUR DIESEL can be used without ris k
o
f malfunction down to an outside temperature
of approximately 14 ‡ ( Ò10 †).
Fuel additives
!Do not add gasoline or kerosene to diesel
fuel to improve its flow characteristics. Gas-
oline or kerosene impairs the lubricating
properties of the diesel fuel. This can result in
274Service products and capacities
Technical data