Page 388 of 539
387 Practical hints
What to do if …
Problem
Possible cause
Suggested solution
v
The yellow ESP
® warning lamp
comes on while the engine is
running.
The ESP
® is deactivated.
Risk of accident!
Adapt your speed and driving to the prevail-
ing road, weather, and traffic conditions.
Switch the ESP
® back on (
page 98).
If the ESP
® cannot be switched back on,
have the system checked at an autho-
rized Mercedes-Benz Light Truck Center
as soon as possible.
v
The yellow ESP
® warning lamp
flashes while driving.
The ESP
® or traction control has come into
operation because of detected traction loss
of at least one tire.
When driving off, apply as little throt-
tle as possible.
While driving, ease up on the acceler-
ator.
Adapt your speed and driving to the
prevailing road and weather condi-
tions.
Do not deactivate the ESP
®.
Exceptions: (
page 97).
Failure to follow these instructions in-
creases the risk of an accident.
Page 457 of 539

456 Practical hintsFlat tire
Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.
Turn on the hazard warning flashers.
Turn the steering wheel so that the
front wheels are in a straight ahead po-
sition.
Set the parking brake.
Shift automatic transmission to park
positionP.
Vehicles with Air suspension package*:
Do not open or close a door or tailgate
while mounting the spare wheel.
Vehicles with SmartKey:
Turn off the engine (
page 34).
Remove the SmartKey from the starter
switch.Vehicles with KEYLESS-GO*:
Turn off the engine by pressing the
KEYLESS-GO* button once
(page 63).
Open the driver’s door (this puts the
starter switch in position0, same as
with the SmartKey removed from the
starter switch). The driver’s door then
can be closed again.
Have any passenger exit the vehicle at
a safe distance from the roadway.
Warning!
G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a mounted
Minispare wheel. Adapt your driving style
accordingly.
The Minispare wheel is for temporary use
only. When driving with a Minispare wheel
mounted, ensure proper tire pressure and
do not exceed a vehicle speed of
50 mph (80 km/h).
Drive to the nearest Mercedes-Benz Light
Truck Center as soon as possible to have the
Minispare wheel replaced with a regular
road wheel.
Never operate the vehicle with more than
one spare wheel mounted.
Do not switch off the ESP
® when a
Minispare wheel is mounted.
iOpen doors only when conditions are
safe to do so.
Page 461 of 539

460 Practical hintsFlat tire
Clean contact surfaces of wheel and
wheel hub.
Guide spare wheel onto the alignment
bolt and push it on the wheel hub.
Insert wheel bolts and tighten them
slightly.
Unscrew the alignment bolt.
Insert the remaining wheel bolt and
tighten it slightly.Lowering the vehicle
Lower vehicle by turning crank coun-
terclockwise until vehicle is resting ful-
ly on its own weight.
Remove the jack.
!To avoid paint damage, place wheel flat
against hub and hold it there while
installing first wheel bolt.Warning!
G
Always replace wheel bolts that are
damaged or rusted.
Never apply oil or grease to wheel bolts.
Damaged wheel hub threads should be
repaired immediately. Do not continue to
drive under these circumstances! Contact
an authorized Mercedes-Benz Light Truck
Center or call Roadside Assistance.
Incorrect wheel bolts or improperly tight-
ened wheel bolts can cause the wheel to
come off. This could cause an accident.
Make sure to use the correct wheel bolts.
Warning!
G
Use only genuine equipment
Mercedes-Benz wheel bolts. Other wheel
bolts may come loose.
Do not tighten the wheel bolts when the ve-
hicle is raised. Otherwise the vehicle could
fall off the jack.
Page 473 of 539

472 Practical hintsTowing the vehicleMercedes-Benz recommends that the
vehicle be transported with all wheels off
the ground using flatbed or appropriate
wheel lift/dolly equipment. This method is
preferable to other types of towing.When circumstances do not permit the
recommended towing methods, the
vehicle may be towed with all wheels on
the ground only so far as necessary to have
the vehicle moved to a safe location where
the recommended towing methods can be
employed.
!Use flatbed or wheel lift/dolly equip-
ment, with SmartKey in starter switch
turned to position0.
Do not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
To prevent damage during transport,
do not tie down vehicle by its chassis or
suspension parts. Use the towing eyes.
Switch off the ESP
® (page 97),
tow-away alarm (
page 102) and the
automatic central locking
(
page 125).
Do not tow-start the vehicle.
!Do not tow with one axle raised. Doing
so could damage the transfer case,
which is not covered by the
Mercedes-Benz Limited Warranty.
All wheels must be on or off the ground.
Observe instructions for towing the ve-
hicle with all wheels on the ground.!When towing the vehicle with all wheels
on the ground, the gear selector lever
must be in positionN and the
SmartKey must be in starter switch
position2.
When towing the vehicle with all wheels
on the ground, the vehicle may be
towed only for distances up to 30 miles
(50 km) and at a speed not to exceed
30 mph (50 km/h).
If the vehicle is towed with the front
axle raised (observe instructions re-
garding flexible drive shaft), the engine
must be shut off (SmartKey in starter
switch position1). Otherwise, the
4-ETS may become engaged which may
cause loss of towing control.
Keep in mind that it is important for the
SmartKey to be in the respective start-
er switch positions as described above.
As soon as the SmartKey is removed
from the starter switch, the automatic
transmission will shift to park
positionP.
Page 490 of 539
489 Technical data
Rims and tires
Minispare wheel
ML 350
ML 500
Rim
4.0B x 18 H2
Wheel offset
1.58 in (40 mm)
Tire
T 155/90-18 113M
1
1Must not be used with snow chains.!Please compare the recommended tire
inflation pressure for your vehicle with
the tire inflation pressure on the yellow
label located on the Minispare wheel
rim.
If the tire inflation pressure on the
yellow label on the Minispare wheel rim
differs from the values given in this
Operator’s Manual, inflate the tire to
the recommended tire inflation pres-
sure given on the yellow label on the
Minispare wheel rim.
iPlease note that the tire inflation
pressure of the Minispare tire differs
from the tire inflation pressure of the
road tires.
Inflate the Minispare tire to approxi-
mately 61 psi (4.2 bar).
Page 506 of 539

505 Technical terms
Production options weight
(
page 366)
PSI
(P
ounds per s
quare i
nch) (
page 366)
Recommended tire inflation pressure
(
page 366)
REST
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
Restraint systems
Seat belts, belt tensioner, air bags and
child restraints, lower anchors and
tethers for children (LATCH). As inde-
pendent systems, their protective func-
tions complement one another.
Rim
(page 367)RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line’s ability to resist undesired detona-
tion (knocking). The average of both
the ->MON (Motor Octane Number)
and RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
Sidewall
(
page 367)
SRS
(Supplemental R
estraint S
ystem)
Air bags, air bag control unit (with
crash sensor), emergency tensioning
device. Though independent systems,
they are closely interfaced to provide
effective occupant protection.Tele Aid* System
(T
elematic A
larm I
dentification on
D
emand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, Roadside Assistance
and information. Tele Aid is initially
activated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Telematics*
A combination of the terms “telecom-
munications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.
Page 508 of 539

507 Index
A
ABS 93, 501
ABS control 93
Malfunction indicator lamp 382
Messages in display 397
Off-road - ABS 94
Warning lamp 382
Accelerator position, automatic
transmission 190
Accessory weight 365
Accident
In case of 59
Activating
Air circulation mode 226
Air conditioning (cooling) 211
Air recirculation mode 209, 224
Anti-theft alarm system 101
Central locking (control system) 172
Defrosting 208
Easy-entry/exit feature* 173
ESP
®
98Exterior headlamps 54
Hazard warning flasher 145
Headlamps 54
High beams 142
Ignition 34
Immobilizer 62, 100
Rear window defroster 201
Rear window wiper 58
Residual heat 212, 227
Seat heating* 134
Tow-away alarm 102
Warning indicators (Parktronic*) 256
Windshield wipers 55
Adaptive Damping
System (ADS)* 249, 501
Adding
Coolant 333
Engine oil 331
Additional turn signals 443Adjusting 38
Air distribution 207, 222
Air volume 207, 208, 222
Backrest tilt 40
Compass zone 171
Exterior rear view mirror 44
Head restraint height 40
Head restraint tilt 41
Headlamp aim 451
Instrument cluster illumination 148
Interior rear view mirror 44
Mirrors 43
Multicontour seat* 132
Seat cushion depth 132
Seat cushion tilt 40
Seat fore and aft adjustment 39
Seat height 39
Seats 38
Steering column height 43
Steering wheel 41
Adjusting steering column 43
ADS* 501
Page 512 of 539

511 Index
Checking
Coolant level 332
Engine oil with the
control system (ML 500 only) 328
Engine oil with the
oil dipstick (ML 350 only) 330
Oil level 327
Tire inflate pressure 325
Vehicle lighting 325
Checking tire pressure
electronically with the
Advanced Tire Pressure Monitoring
System* (Advanced TPMS*) 351
Checking weights
Trailer and vehicle 315
Checklist
Off-road driving 307
Returning from off-road driving 313
Child safety 78
Air bags 68
Infant and child
restraint systems 73, 78
LATCH type child seat mounts 88Child safety switch see Blocking of rear
door window operation
Cigarette lighter*
Front center console 275
Cleaning
Carpet 379
Cup holder 379
Gear selector lever 379
Hard plastic trim items 379
Headlamps 194
Headliner 379
Instrument cluster 379
Leather upholstery* 380
Light alloy wheels 379
MB Tex upholstery 380
Plastic and rubber parts 380
Seat belts 379
Steering wheel 379
Windows 378
Windshield 56
Wiper blades 378
Cleaning and care of the vehicle 374
Cleaning tires 337Climate control 202
Adjusting 207
Adjusting air volume 208
deactivating 206
Defrosting 208
Rear passenger compartment 213
Rear window defroster 200
Setting the temperature 207
Clock 165
Closing
Glove box 270
Hood 327
Power tilt/sliding sunroof* 439
Side windows 231
Side windows with
KEYLESS-GO* 234
Tailgate 120
Vehicle with KEYLESS-GO* 123,
124
Tilt/sliding sunroof* 235
Tilt/sliding sunroof* with
KEYLESS-GO* 234
Windows 230