Page 262 of 356

260 Practical hintsWhat to do if …Problem
Possible cause
Suggested solution
:
The yellow warning lamp flashes
after starting the engine or while
driving.
The engine oil level has sunk to the minimum
level. If the engine oil level continues to sink,
the warning lamp will light up.
Add approved oil at the next gas
station (
page 314).
If oil loss is visible on the engine, have
the malfunction corrected as soon as
possible at a Mercedes-Benz Light
Truck Center.
_
The red indicator lamp does not
go out after starting the engine.
The adjustable telescoping steering column
is not properly locked.
Lock the adjustable steering column
(page 40).
‡
The green front fog lamp indica-
tor lamp lights up when ignition
is turned on.
The front fog lamps are switched on.
Fog lamps (
page 111).
<
The red seat belt telltale
illuminates for a brief period
after starting the engine.
The telltale reminds you to fasten seat belts.
Fasten your seat belt (
page 64).
The telltale goes out.
W
The yellow low washer system
fluid level lamp comes on after
starting the engine or while driv-
ing.
There is approximately 1.3 US qt. (1.25 l) of
washer fluid remaining in the reservoir.
Add washer fluid (
page 230).
The washer fluid may have frozen.
Move the vehicle to a warmer environ-
ment so that the washer fluid will
thaw.
Correct the concentration level after
the washer fluid in the reservoir
thaws.
Page 270 of 356
268 Practical hintsUnlocking / locking in an emergencyUnlocking the vehicle
If you are unable to unlock the driver’s
door using the remote control, open the
door using the folding key.Remote control with folding key
1Release button
Press release button1 on the remote
control.
The key folds out.Unlocking the driver’s door
1Unlocking
Insert the key into the driver’s door
lock until it stops.
Turn the key counterclockwise to
position1.
The driver’s door is unlocked.
iUnlocking the driver’s door with the
folding key will trigger the anti-theft
alarm system.
To cancel the alarm, do one of the
following:
Press buttonŒ or‹ on the
remote control.
Insert the key in the steering lock.
Page 273 of 356
271 Practical hints
Opening / closing in an emergency
Opening / closing in an emergency
Power tilt / sliding sunroof*
You can open or close the tilt / sliding
sunroof manually should an electrical
malfunction occur.
The tilt / sliding sunroof drive is located be-
hind cover3 between the front interior
lamps.
1Hexagon drive hole
2Crank
3Cover
Remove the key from the steering lock.
Pry off cover3 using a flat blade
srewdriver.
Take crank2 out of the Operator’s
Manual pouch.
Insert crank2 through hole1.
Turn crank2 clockwise to:
slide sunroof closed
raise sunroof at the rear
Turn crank2 counterclockwise to:
slide sunroof open
lower sunroof at the rear
iPush crank2 upward while turning to
disengage the electric motor.iTurn crank2 slowly and smoothy.
The tilt / sliding sunroof must be syn-
chronized if it has been operated man-
ually (
page 152).
Page 275 of 356

273 Practical hints
Replacing key batteries
Remote control
Replacement batteries: Lithium, type
CR 2025 or equivalent.
1Release button
2Battery cover
Unfold the key by pressing release
button1.
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.
iWhen inserting the batteries, make
sure they are clean and free of lint.
iIf it is not possible to resynchronize the
remote control, have the system
checked at an authorized
Mercedes-Benz Light Truck Center.
Page 286 of 356

284 Practical hintsFlat tireMounting the spare wheel Preparing the vehicle
Park the vehicle as far as possible from
moving traffic on a hard surface.
Turn on the hazard warning flashers.
Engage the steering wheel lock in the
straight ahead position.
Set the parking brake.
Move the gear selector lever toP.
Have any passenger exit the vehicle at
a safe distance from the roadway.
Take the spare wheel out of its carrier
(page 266).Lifting the vehicle
Prevent the vehicle from rolling away
by blocking wheels with wheel chocks
(not included) or other sizable objects.
When changing wheel on a level surface:
Place one chock in front of and one be-
hind the wheel that is diagonally oppo-
site to the wheel being changed.
When changing wheel on a hill:
Place chocks on the downhill side
blocking both wheels of the other axle.
Take the two-piece wheel wrench and
the jack out of the rear cargo compart-
ment (
page 264). Assemble wheel
wrench.
Warning!
G
The dimensions of the spare wheel are dif-
ferent from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a mounted spare
wheel. Adapt your driving style accordingly.
The spare wheel is for temporary use only.
When driving with spare wheel mounted,
make sure proper tire pressure and do not
exceed vehicle speed of 50 mph (80 km / h).
Drive to the nearest Mercedes-Benz Light
Truck Center as soon as possible to have the
spare wheel replaced with a regular road
wheel.
Never operate the vehicle with more than
one spare wheel mounted.
iOpen door only when conditions are
safe to do so.
Page 290 of 356

288 Practical hintsBatteryThe battery is located on the passenger
side of the engine compartment.
1Negative terminal
2Positive terminal
Warning!
G
Failure to follow these instructions can
result in severe injury or death.
Observe all safety instructions and precau-
tions when handling automotive batteries
(page 228).
Never lean over batteries while connecting,
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 explosive. Keep
flames or sparks away from battery, avoid
improper connection of jumper cables,
smoking etc.
!Never loosen or detach battery termi-
nal clamps while the engine is running
or the key is in the steering lock. Other-
wise the alternator and other electronic
components could be severely dam-
aged.
Have the battery checked regularly by
an authorized Mercedes-Benz Light
Truck Center.
Refer to Maintenance Booklet for main-
tenance intervals or contact an autho-
rized Mercedes-Benz Light Truck
Center for further information.Warning!
G
Do not place metal objects on the battery as
this could result in a short circuit.
Use leak-proof battery only to avoid the risk
of acid burns in the event of an accident.
Page 291 of 356

289 Practical hints
Battery
Disconnecting the battery
Depress parking brake firmly or move
gear selector lever to positionP.
Turn off all electrical consumers.
Remove key from the steering lock.
Open the hood (
page 222).
Disconnect the battery negative lead.
Remove the cover from the positive ter-
minal.
Disconnect the battery positive lead.
Removing the battery
Remove the screw securing the
battery.
Remove the battery support and
bracket.
Take out the battery.
Charging and reinstalling the battery
Charge battery in accordance with the
instructions of the battery charger
manufacturer.
Reinstall the charged battery. Follow
the previously described steps in re-
verse order.
Reconnecting the battery
Turn off all electrical consumers.
Connect the positive lead and fasten its
cover.
Connect the negative lead.
Warning!
G
With a disconnected battery
you will no longer be able to turn the key
in the steering lock
the gear selector lever will remain
locked in positionP
Warning!
G
Never charge a battery while still installed in
the vehicle. Gases may escape during charg-
ing and cause explosions that may result in
paint damage, corrosion or personal injury.
!Never invert the terminal connections!!The battery, its filler caps and the vent
tube must always be securely installed
when the vehicle is in operation.
Page 295 of 356

293 Practical hints
Towing the vehicle
Towing the vehicle
Mercedes-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 key in steering lock 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 81),
tow-away alarm (
page 85) and the
automatic central locking (
page 93).
!When towing the vehicle with all wheels
on the ground, the gear selector lever
must be in positionN and the key must
be in steering lock 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 (key in steering lock
position1). Otherwise, the 4-ETS may
become engaged which may cause loss
of towing control.
!To be certain to avoid additional dam-
age to the vehicle powertrain, however
you should observe the following:
With damage to the front axle
raise front axle
remove flexible drive shaft be-
tween rear axle and transfer
case
With damage to the rear axle
raise rear axle
tow vehicle with wheel lift or
dolly placed under front wheels
With damage to the transfer case
remove flexible drive shaft to
the drive axles
Always install new self-locking nuts
when reinstalling flexible drive shaft.