MERCEDES-BENZ R350 2008 W251 Owner's Manual

460 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
. Turn Signal
Rear LeftThe left rear turn signal lamp is
malfunctioning. A substitute
bulb is being used.Replace the bulb as soon as possible
(
page 480).
Turn Signal
Rear RightThe right rear turn signal lamp is
malfunctioning. A substitute
bulb is being used.Replace the bulb as soon as possible
(
page 480).
Turn Signal
Front LeftThe left front turn signal lamp is
malfunctioning. A substitute
bulb is being used.Replace the bulb as soon as possible
(
page 480).
Turn Signal
Front RightThe right front turn signal lamp is
malfunctioning. A substitute
bulb is being used.Replace the bulb as soon as possible
(
page 480).
Turn Signal
Left MirrorThe turn signal in the left exte-
rior rear view mirror is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have stopped working.Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.
Turn Signal
Right MirrorThe turn signal in the right exte-
rior rear view mirror is malfunc-
tioning. This message will only
appear if a critical number of
LEDs have stopped working.Contact an authorized Mercedes-Benz
Light Truck Center as soon as possible.

461 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
4Reserve FuelThe fuel level has gone below the reserve
mark.Refuel at the next gas station
(
page 352).
Ultra Low-sulfur
Diesel Fuel OnlyVehicles with diesel engine only:
The fuel level has gone below the reserve
mark.Refuel at the next gas station
(
page 352).
Only use commercially available
vehicular ULTRA-LOW SULFUR
HIGHWAY DIESEL FUEL
(15 ppm SULFUR MAXIMUM).
L Tele Aid
InoperativeOne or more main functions of the
Tele Aid* system are malfunctioning.Have the Tele Aid* system checked
by an authorized Mercedes-Benz Light
Truck Center.
Tele Aid
BatteryThe emergency power battery for the
Tele Aid* system is malfunctioning. If the
vehicle battery is also malfunctioning or
drained, Tele Aid* will not be operational.Have the Tele Aid* system checked
by an authorized Mercedes-Benz Light
Truck Center.
tFunction
unavailableThis display appears if
buttontorson the multifunc-
tion steering wheel is pressed and the
vehicle is not equipped with a telephone.
WTop Up
Washer FluidThe fluid level has dropped to
about1/3of total reservoir capacity.
Add washer fluid (page 362).

462 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
HTire Pressure(s)
Please CorrectVehicles with Advanced TPMS*:
The tire pressure is too low in one
or more tires.Check and correct tire inflation pressure as
required (
page 373).
Tire Pressure
Caution - Tire DefectOne or more tires are deflating.Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
If necessary, change the wheel (page 492).
Caution: Tire DefectOne or more tires are deflating.
Vehicles with Advanced TPMS*:
The respective tire is indicated in
the multifunction display.Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.
If necessary, change the wheel (page 492).
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.

463 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
HTire Pressure
Check TiresThe tire pressure in one or more tires is
already below the minimum value.Carefully bring the vehicle to a halt, avoid-
ing abrupt steering and braking maneuvers.
Check and adjust tire pressure as required
(
page 373).
If necessary, change the wheel
(
page 492).
Check TiresThe tire pressure in one or more tires is
already below the minimum value.
Vehicles with Advanced TPMS*:
The respective tire is indicated in the
multifunction display.Carefully bring the vehicle to a halt, avoid-
ing abrupt steering and braking maneuvers.
Check and adjust tire pressure as required
(
page 373).
If necessary, change the wheel
(
page 492).
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle. You
may lose control of the vehicle. Continued
driving with a flat tire will cause excessive
heat build-up and possibly a fire.

464 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
n*Vehicle Rising
Wait BrieflyThe vehicle level is too low.Do not drive off.
The vehicle level control* has not yet
adjusted the vehicle level to the necessary
height required for driving.
Wait until the message disappears from the
multifunction display.
You may then drive off.
STOP
Car Too LowYou have driven off while the vehicle level
was too low.The AIRMATIC* should have raised the vehicle
to the set level after a short while. While the
message is displayed:
Avoid large steering angles. Otherwise a
fender or tire could be damaged.
Do not drive faster than 50 mph (80 km/h).
If the message does not disappear from the
multifunction display:
Have the system checked at an authorized
Mercedes-Benz Light Truck Center.

465 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
n*STOP
Car Too LowThe AIRMATIC* is inoperative.Avoid large steering angles.
Otherwise a fender or tire could
be damaged.
Do not drive faster than 50 mph
(80 km/h).
Have the system checked at an
authorized Mercedes-Benz Light
Truck Center.
Level Selection
Not PermittedYou are driving too fast for the desired
level selection.Reduce vehicle speed.
Set the next higher level
(
page 278).

466 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
n*Compressor
Cooling DownLevel control was activated too long/too
frequently.Let the compressor cool until the
message disappears.
The selected level will be set once the
compressor has cooled down.
MalfunctionThe AIRMATIC* is malfunctioning.Do not drive faster than
50 mph (80 km/h) depending on
the set vehicle level.
Have the system checked at an
authorized Mercedes-Benz Light
Truck Center.
!When the message Compressor Cooling
Down
appears in the multifunction display, driv-
ing is still possible. Keep in mind that the ride
height of the vehicle is not yet reached and you
could therefore damage the underbody of the
vehicle. The selected level will be set once the
compressor has cooled down.

467 Practical hints
Where will I find ...?
Where will I find ...?
First aid kit
The first aid kit is stored under the cargo
compartment floor, see “Vehicle tool kit”
(
page 467).
Vehicle tool kit
The vehicle tool kit is stored under the
cargo compartment floor.
The vehicle tool kit includes:

Towing eye bolt

Wheel wrench

Alignment bolt

Vehicle jack

Fuse chart

Collapsible wheel chock

Wheel bolts for spare wheel
(if applicable, see “Mounting the spare
wheel” (
page 498))1Cargo compartment floor, lowered
2Handle cover
Open the tailgate (page 119).
Push in handle cover2 as indicated
by arrow and pull handle.
Lift cargo compartment floor 1.
iCheck expiration dates and contents for
completeness at least once a year and replace
missing / expired items.


468 Practical hints
Where will I find ...?
3Securing hook
Release securing hook 3 (located be-
low the floor handle) from holder.3Securing hook
4Cargo compartment floor, raised
5Upper cargo compartment lip
Engage securing hook 3 on upper
cargo compartment lip 5.You can now access the vehicle tool kit.
!With the cargo compartment cover blind
installed behind the third-row seats
(
page 299), disengage cargo compartment
cover blind and flip it forward. Otherwise the
strap of the securing hook could damage the
cargo compartment cover blind.


469 Practical hints
Where will I find ...?
Vehicle tool kit storage well casing
Example illustration1
(vehicles with scissors-type jack)
1Wheel wrench
2Electric air pump
3Mounting direction indicator
4Fuse chart
5Hook and loop fastener
6Alignment bolt
7Collapsible wheel chock
8Towing eye bolt
9Spare wheel (collapsible tire)
aSpare wheel bolts
bVehicle tool kit storage well casing
cReversible ratchet
(comes with scissors-type jack only)
dJack
To remove jackd, loosen hook and
loop fastener 5.
To remove the vehicle tool kit storage
well casing, proceed as described
on (
page 472).Vehicle jack
The vehicle jack is located underneath the
storage compartment floor.Remove vehicle jack from its storage
compartment (
page 467).
1Appearance and alignment of the items may vary.
Warning!G
Only use the jack supplied with your vehicle
to lift the vehicle briefly for wheel changes.
If you use the jack for any other purpose,
you or others could be inju re d, as the j ac k is
designed only for the purpose of changing a
wheel.
When using the jack, observe the safety
notes in the “Mounting the spare wheel”
section (
page 493) and the notes on the
jack.