
3 ContentsSnow chains  ................................ 179
Winter driving instructions  ...... 180
Deep water  .................................. 181
Passenger compartment  ........... 182
Traveling abroad  ........................ 182
Off-Road driving ............................. 183
Trailer towing  ................................. 190
Cruise control  ................................. 196
Brake assist system (BAS)  ............ 199
Antilock brake system (ABS)  ....... 201
Four-wheel electronic 
traction system (4-ETS+) ..........203
Electronic brake 
proportioning (EBP) ..................204
Electronic stability program
(ESP) ...........................................205
Transmission control – 
LOW RANGE mode  ...................209
What you should know
at the gas station  ....................... 212
Check regularly and
before a long trip ....................... 215
Instrument cluster displayMalfunction and indicator 
lamps in the
instrument cluster  .....................218
On-board diagnostic system – 
Check engine malfunction 
indicator lamp  .............................218
Brake warning lamp  ...................219
Supplemental restraint system 
(SRS) indicator lamp  .................. 219
Fuel reserve warning  ................ 220
Electronic stability
program (ESP) / Electronic 
traction system (ETS) – 
warning lamp  ............................. 221
BAS/ESP malfunction 
indicator lamp  ............................ 221
4-ETS malfunction
indicator lamp  ............................ 221
LOW RANGE
indicator lamp  ............................ 221
ABS malfunction 
indicator lamp  ............................ 222Adjustable steering wheel – 
indicator lamp .............................222
AIRBAG OFF
indicator lamp .............................222
Seat belt warning lamp  .............223
Charge indicator lamp  ...............223
Low engine oil level
warning lamp ..............................224
Low engine coolant 
level warning  ..............................224
Brake pad wear 
indicator lamp .............................225
FSS indicator ...............................225 

4 Contents
Practical hintsFirst aid kit  .....................................228
Fuses ................................................228
Electrical outlet  ..............................230
Stowing things in the vehicle  ......230
Hood ................................................. 231
Checking engine oil level  .............233
Automatic transmission 
fluid level  ...................................234
Engine oil consumption  ................234
Coolant level  ...................................234
Adding coolant  ...........................235
Windshield washer/headlamp 
cleaning system .........................236
Windshield and
headlamp washer fluid 
mixing ratio  ................................237Vehicle jack, wheel bolt
wrench and screwdriver  ......... 237
Air pump ......................................... 239
Wheels ............................................ 240
Tire replacement  ....................... 240
Rotating wheels  ......................... 241
Spare wheel .................................... 242
Changing wheels  ........................... 245
Tire inflation pressure  ................. 250
Battery ............................................. 251
Jump starting  ................................. 253
Towing the vehicle  ........................ 255
Transmission selector lever, 
manually unlocking  .................. 259
Stranded vehicle  ............................ 259Exterior lamps  ................................260
Headlamp assembly ................... 261
Taillamp assemblies  ..................265
Adjusting headlamp aim ...............268
Remote control
battery replacement  .................270
Synchronizing
remote control  ............................ 271
Emergency operation of 
sliding/pop-up roof  ...................272
Emergency operation of
Skyview Top ...............................273
Manual release for 
fuel filler flap ............................. 274
Replacing wiper blades .................275
Roof rack  ......................................... 276 

89 Engine oil level indicator
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Engine oil level indicator
To check the engine oil level, park vehicle on level 
ground, with engine at normal operational temperature.
Check oil level approximately 5 minutes after stopping 
the engine, allowing for the oil to return to the oil pan.
Turn the key in steering lock to position 2 and wait until 
the display “––––––” appears in the odometer display 
field.
Within 1 second press button (1) twice.The following messages are available:
“OIL i.O” 
No oil needs to be added.
“–1.0 L”
“–1.5 L”
“–2.0 L”
Add oil to upper (max) mark of the dipstick.
See page 233 for instructions on adding engine oil.
“OIL HI”
Do not overfill the engine.
Excessive oil must be siphoned or drained off. It could 
cause damage to the engine and catalytic converter not 
covered by the Mercedes-Benz Limited Warranty.
The display “––––––” flashes in the odometer display 
field if a proper oil level check cannot be performed. The 
engine oil level check can be repeated after a short time.
Perform the engine oil level check with the dipstick, if it 
cannot be completed via the odometer display field. 
See page 233.
In this case we recommend that you have the system 
checked at a Mercedes-Benz Light Truck Center. 

181 Driving instructions
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Winter driving
Have your vehicle winterized at your authorized 
Mercedes-Benz Light Truck Center before the onset of 
winter.
•Change the engine oil if the engine contains an oil 
which is not approved for winter operation. For 
viscosity (SAE / CCMC class) and filling quantity, 
see page 292.
•Check engine coolant anticorrosion / antifreeze 
concentration.
•Additive for the windshield washer and headlamp 
cleaning system: Add MB Concentrate “S” to a 
premixed windshield washer solvent / antifreeze 
which is formulated for below freezing temperatures 
see page 237.
•Test battery: Battery capacity drops with decreasing 
ambient temperature. A well charged battery helps 
to ensure that the engine can be started, even at low 
ambient temperatures.
•Tires: We recommend M+S rated radial-ply tires on 
all four wheels for the winter season. Observe 
permissible maximum speed for M+S rated 
radial-ply tires and the legal speed limit.In winter operation, the maximum effectiveness of the 
antilock brake system (ABS), the four wheel electronic 
traction system (4-ETS+), the electronic stability 
program (ESP), and electronic brake proportioning 
(EBP) can only be achieved with M+S rated radial-ply 
tires and / or snow chains recommended by 
Mercedes-Benz. Snow chains maximize performance.
For driving instructions using snow chains see 
page 179.
Deep water
Caution!
Do not drive through flooded areas or water of unknown 
depth. Before driving through water, determine its 
depth. It should not be deeper than approximately 
20 inches (50 cm).
If you must drive through deep water, drive slowly to 
prevent water from entering the engine compartment or 
passenger compartment, being ingested by the air 
intake, possibly causing damage to electrical 
components or wiring, to engine or transmission that is 
not covered by the Mercedes-Benz Limited Warranty. 

183 Driving instructions
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Off-Road driving
Familiarize yourself with the vehicle characteristics and 
gear changing before you attempt any difficult terrain 
off-road driving. We recommend that you start out with 
easy off-road travel.
Please read this chapter carefully before you begin 
off-road travel.
Special driving features are available for specific kinds 
of operation:
•LOW RANGE mode, see page 209
•LOW RANGE - ABS, see page 202
•LOW RANGE - 4-ETS+, see page 204
•LOW RANGE - ESP, see page 208
Engage the LOW RANGE mode before driving under 
off-road conditions. For switching LOW RANGE mode on 
and off see page 209.
Fasten items being carried as securely as possible, see 
page 136.
We recommend to keep doors, liftgate, windows, and 
roof closed whenever driving in off-road mode.Important!
Adjust vehicle speed to condition of terrain. The more 
uneven, rutty and steeper the terrain, the lower the 
speed should be.
Watch out for obstacles, such as rocks, holes, 
tree-stumps, ruts.
Be especially careful when driving in unknown 
territory. Eventually get out of the vehicle and scout the 
path you intend to take.
Continuous and speedy driving in sandy soil overcomes 
the vehicle rolling resistance, and helps to prevent the 
vehicle from sinking into the ground.
Do not initiate jumps with the vehicle. It interrupts the 
forward momentum of the vehicle.
Sand, dirt, mud and other material having friction 
property, can cause exceptional wear and tear as well as 
failure of the brakes.
In this case the brakes may be less effective or even fail 
when you most need them. Always clean and check the 
brakes following each off-road trip. 

184 Driving instructions
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index
Checklist before off-road driving
•Tires: Check the tread depth and maintain specified 
tire pressure (see tire pressure label inside the fuel 
filler flap). Check tires for possible damage and 
remove foreign objects. The valve caps must be 
mounted.
•Rims: Dented or bent rims can cause tire pressure 
loss and damage the tire beads. For this reason 
change rims before driving off-road.
• Vehicle tool kit: Check if the vehicle jack is 
functional. In all cases take the vehicle tool kit, a 
strong tow rope, a shovel and a small plank (to put 
under the vehicle jack on sandy soil) with you.Driving in steep terrain
Slope angle:
126° (ML 320 and ML 430)
23° (ML 55 AMG)
226° (ML 320 and ML 430)
21° (ML 55 AMG)
Switch to LOW RANGE mode before starting to drive up 
or down steep inclines, see page 209.
Maximum vehicle climbing ability is a 60% grade.
1
2 

189 Driving instructions
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Returning from off-road driving
Off-road driving increases strain on the vehicle.
We recommend that you inspect the vehicle for possible 
damage after each off-road trip. Recognizing any 
damage and a subsequent timely repair reduces the 
chance of a possible breakdown or accident later on.
Proceed as follows:
•Switch off the LOW RANGE mode, see page 209.
•Remove excessive dirt from tires, wheels, wheel 
housings, and underbody. For instance, after driving 
in mud, clean the radiator, chassis, engine, brakes, 
and wheels from extreme dirt, using a strong jet of 
water.
•Inspect frame, oil pan, brake hoses, etc., as well as 
vehicle underbody for possible damage.
•Check tires for possible damage, clean all exterior 
lamps, and conduct a brake test.•Check for brush or branches caught in the 
undercarriage. They could increase the possibility of 
a fire, as well as cut fuel and / or brake lines, 
puncture rubber bellows of the axles or drive shafts.
Wa r n i n g !
If you feel a sudden significant vibration or ride 
disturbance, or you suspect that possible damage to 
your vehicle has occurred, you should turn on the 
hazard warning flashers, carefully slow down, and 
drive with caution to an area which is a safe 
distance from the roadway.Inspect the tires and under the vehicle for possible 
damage. If the vehicle or tires appear unsafe, have 
it towed to the nearest Mercedes-Benz Light Truck 
Center or tire dealer for repairs. 

213 What you should know at the gas station
Te ch n ica l
data Instruments 
and controlsOperationDrivingInstrument 
cluster displayPractical hints Car care Index Leaving the engine running and the fuel cap open can 
cause the “CHECK ENGINE” lamp to illuminate.
Fuel tank capacity approximately 19.0 US gal (72.0 l).
This includes approximately 3.2 US gal (12.0 l) reserve.
Use premium unleaded gasoline: Posted Octane 
Index 91 (Average of 96 RON / 86 MON).
•Engine oil
Engine oil level check, see page 89 and page 233.
Fill quantity between upper and lower dipstick 
marking level: 2.1 US qt (2.0 l).
Recommended engine oils, see Approved Service 
Products sheet.• Coolant
For normal replenishing, use water (potable water 
quality).
For further information (e.g. anticorrosion/
antifreeze), see page 292.
• Spark plugs
Approved spark plugs, see page 290.
• Tire pressure
For tire pressure, refer to tire pressure label inside 
the fuel filler flap. See page 250 for further details.
• Air conditioner
R-134a refrigerant and special PAG lubricant, see 
page 294.
Wa r n i n g !
Overfilling of fuel tank may result in creating 
pressure in the system which could cause a gas 
discharge such as the gas spraying back out upon 
removing the filler nozzle which could cause 
personal injury.