Page 248 of 344

248 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
?
The yellow “CHECK ENGINE”
malfunction indicator lamp
comes on while driving.
There is a malfunction of:
The fuel management system
The ignition system
The emission control system
Systems which affect emissions
Such malfunctions may result in excessive
emissions values and may switch the engine
to its limp-home (emergency operation)
mode.
Have the vehicle checked as soon as
possible by an authorized
Mercedes-Benz Light Truck Center.
An on-board diagnostic connector is
used by the service station to link the
vehicle to the shop diagnostics sys-
tem. It allows the accurate identifica-
tion of system malfunctions through
the readout of diagnostic trouble
codes. It is located in the front left
area of the footwell next to the park-
ing brake pedal.
The fuel cap is not closed tightly.
Check the fuel cap (
page 214).
Your fuel tank is empty.
After refuelling start the engine three
or four times in succession.
The limp-home mode is canceled. You do
not need to have your vehicle checked.
Page 252 of 344

252 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
{
The yellow ETS malfunction indi-
cator lamp comes on while driv-
ing.
4-ETS has switched off to prevent overheat-
ing of the brakes. Also see 4-ETS / ESP warn-
ing lamp (
page 251).
As soon as the brakes have cooled off,
4-ETS switches on again.
The indicator lamp goes out.
4-ETS is malfunctioning and has switched off.
Have the 4-ETS checked at an autho-
rized Mercedes-Benz Light Truck Cen-
ter as soon as possible.
ê
The yellow LOW RANGE indicator
lamp flashes after one or more
switching conditions.
The gear selection conditions have not been
adhered to.
Repeat the gear selection process
(page 125).
ê
The yellow LOW RANGE indicator
lamp flashes after switching the
ignition on.
LOW RANGE mode is malfunctioning.
Have the LOW RANGE mode checked at
an authorized Mercedes-Benz Light Truck
Center.
The yellow fuel tank reserve
warning lamp comes on while
driving.
The fuel level has gone below the reserve
mark.
Refuel at the next gas station
(page 214).
The yellow fuel tank reserve
warning lamp flashes when leav-
ing the engine running.
The fuel cap is not closed tightly.
Check the fuel cap (
page 214).
Page 263 of 344

263 Practical hints
Unlocking / locking in an emergency
Pull off battery cover2 in direction of
arrow.
Remove the batteries.
Using a lint-free cloth, insert new bat-
teries under the contact spring with the
plus (+) side facing up.
Press battery cover2 onto housing
until locked in place.
Push each button to assure proper op-
eration of the remote control.
If remote control does not function cor-
rectly after replacing the batteries, the
system may have to be resynchronized.Synchronizing remote control
Turn key in steering lock to position2
(page 33), then to position0 and re-
move.
Within ten seconds, push and hold
button‹ while pushing
buttonŒ five times.
Release the button, and press‹,
Œ orŠ once.
The remote control is resynchronized.
Recheck all of the remote control func-
tions.
Fuel filler flap
1Cover
2Lock rod
Open the tailgate.
Open cover1 in cargo area behind
the left trim panel.
Turn lock rod2 clockwise (arrow) to
the end stop.
The fuel filler flap can now be opened.
iI f i t i s n o t p o s s i b l e t o r e s y n c h r o n i z e t h e
remote control, have the system
checked at your authorized
Mercedes-Benz Light Truck Center.
Page 281 of 344

281 Practical hints
Jump starting
Jump starting
If the battery is discharged, the engine can
be started with jumper cables and the bat-
tery of another vehicle. Observe the follow-
ing:
Jump starting should only be performed
when the engine and catalytic convert-
er are cold.
Do not start the engine if the battery is
frozen. Let the battery thaw out first.
Only jump start from batteries with the
same voltage rating (12 V). Jump start-
ing with a more powerful battery could
damage the vehicle's electrical system,
which will not be covered by the
Mercedes-Benz Limited Warranty.
Use only jumper cables with sufficient-
cross-section and insulated terminal
clamps.
Always make sure the jumper cables
are not on or near pulleys, fans or other
parts that move when the engine is
started or running.
Warning!
G
Failure to follow these directions will cause
damage to the electronic components, and
can lead to a battery explosion and severe
injury or death.
Never lean over batteries while connecting
or jump starting, you might get injured.
Battery fluid contains sulfuric acid. Do not
allow this fluid to come in contact with eyes,
skin or clothing. In case it does, immediately
flush affected area with water, and seek
medical help if necessary.
A battery will also produce hydrogen gas,
which is flammable and very explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking, etc.
Attempting to jump start a frozen battery
can result in it exploding, causing personal
injury.
Read all instructions before proceeding.
!Avoid repeated and lengthy starting at-
tempts.
Do not attempt to start the engine us-
ing a battery quick charge unit.
If engine does not run after several un-
successful starting attempts, have it
checked at the nearest authorized
Mercedes-Benz Light Truck Center.
Excessive unburned fuel generated by
repeated failed starting attempts may
damage the catalytic converter and
may present a fire risk.
Make sure the jumper cables do not
have loose or missing insulation.
Make sure the cable clamps do not
touch any other metal part while the
other end is still attached to a battery.
Page 289 of 344
289 Technical data
Spare parts service
Warranty coverage
Identification labels
Layout of poly-V-belt drive
Engine
Rims and tires
Electrical system
Main Dimensions
Weights
Fuels, coolants, lubricants etc.
Consumer information
Page 295 of 344

295 Technical data
Rims and tires
Rims and tires
Use only tires and rims which have been
specifically developed for your vehicle and
tested and approved by Mercedes-Benz.
Other tires and rims can have detrimental
effects, such as
poor handling characteristics
increased noise
increased fuel consumption
Rims and tires
!Moreover, tires and rims not approved
by Mercedes-Benz may, under load, ex-
hibit dimensional variations and differ-
ent tire deformation characteristics
that could cause them to come into
contact with the vehicle body or axle
parts. This may result in damage to the
tires or the vehicle.
iFurther information on tires and rims is
available at any authorized
Mercedes-Benz Light Truck Center. A
tire inflation pressure table is located
on the fuel filler cap of the vehicle. The
tire pressure should be checked regu-
larly and should only be adjusted on
cold tires. Follow tire manufacturer’s
maintenance recommendation includ-
ed with vehicle.
Model
ML 350
ML 500
Rims (light alloy)
8J x 17 H2
81/2J x 17 H2
Wheel offset
2.0in (52mm)
2.0 in (52 mm)
All-season tires (radial-ply tires)
255 / 60 R17 106 H
275 / 55 R17 109 V
Rims* (light alloy)
81/2 J x 17 H2
81/2 J x 17 H2
Wheel offset*
1.85 in (47 mm)
1.85 in (47 mm)
All-season tires (radial-ply tires)*
275 / 55 R17 109 V
275 / 55 R17 109 V
Page 300 of 344
300 Technical dataFuels, coolants, lubricants etc.
Fuels, coolants, lubricants etc.Capacities
Vehicle components and their respective
lubricants must match.Therefore use only brands tested and
approved by Mercedes-Benz.Please refer to the Factory Approved
Service Products pamphlet, or inquire at
your Mercedes-Benz Light Truck Center.
Model
Capacity
Fuels, coolants, lubricants etc.
Engine with oil filter
ML 350, ML 500
8.5 US qt (8.0 l)
Approved engine oils
Automatic transmis-
sion
9.0 US qt (8.5 l)
MB Automatic Transmission Oil
Transfer case
1.6 US qt (1.5 l)
(Dexron 3 or Dexron 2E)
Rear axle
1.3 US qt (1.25 l)
(Hypoid gear oil SAE 90, 85 W 90)
Front axle
1.2 US qt (1.1 l)
(Hypoid gear oil SAE 90)
Power steering
approx. 0.65 US qt (0.6 l)
MB Power Steering Fluid
Front wheel hubs
approx. 1.5oz (43g) each
High temperature roller bearing grease
Page 301 of 344
301 Technical data
Fuels, coolants, lubricants etc.
Model
Capacity
Fuels, coolants, lubricants etc.
Cooling system
approx. 12.7 US qt (12.0 l)
MB Anticorrosion / Antifreeze
Fuel tank
ML 350, ML 500
22.0 US gal (83.0 l)
Premium unleaded gasoline:
Posted Octane 91 (Avg. of 96 RON / 86 MON
including a reserve of
approx. 3.2 US gal (12.0 l)
Air conditioning system
R-134a refrigerant and special PAG lubricant
oil (never R-12)
Windshield washer and
headlamp cleaning
system*
8.0 US qt (7.6 l)
MB Windshield Washer Concentrate
1
1Use MB Windshield Washer Concentrate “S” and water for temperatures above freezing or MB Windshield Washer Concentrate “S” and commercially available pre-
mixed windshield washer solvent / antifreeze for temperatures below freezing. Follow suggested mixing ratios (page 307).