2007 MERCEDES-BENZ R320CDI wheel

450 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
Tire pressure monitor
inoperativeThe TPMS or Advanced TPMS* is
malfunctioning.Have the TPMS or Advanced TPMS* checked by an
authorized Mercedes-Benz Light Truck Center.
Tire pressure monitor
inoperative
No wheel sensorsThere are wheels without appropriate wheel
sensors mounted (e.g. winter tires).Have the TPMS or Advanced TPMS* checked by an
authorized Mercedes-Benz Light Truck Center.
Have the wheel sensors installed by an authorized
Mercedes-Benz Light Truck Center.
Tire pressure monitor
Wheel sensor missingOne or more sensors are defect (e.g.
battery is empty).
One or more wheels without appropriate
wheel sensors mounted (e.g. spare tire).Have the TPMS or Advanced TPMS* checked by an
authorized Mercedes-Benz Light Truck Center.
Have the wheel sensors installed by an authorized
Mercedes-Benz Light Truck Center.
Vehicles with Advanced TPMS*:
The tire pressure for the respective tire is shown in
the multifunction display.
Tire pressure monitor
currently unavailableThe TPMS or Advanced TPMS* is unable to
monitor the tire pressure due to

a nearby radio interference source.

excessive wheel sensor temperatures.
As soon as the causes of the malfunction have been
removed, the TPMS or Advanced TPMS* automati-
cally becomes active again after a few minutes
driving.

453 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
;(USA only)
!(Canada only)
Release
parking brakeYou are driving with the parking
brake set.Release the parking brake (page 57).
;(USA only)
3(Canada only)
EBV, ABS, ESP inoperative
See Operator’s ManualThe EBP, the ABS, and the ESP®
have switched off due to a mal-
function. The BAS is also
switched off.
The brake system is still func-
tional but without the EBP, the
ABS, and the ESP
® available.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an
authorized Mercedes-Benz Light Truck
Center as soon as possible.
Failure to follow these instructions increases
the risk of an accident.

469 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
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 buttont or
son the multifunction 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 372).

472 Practical hints
Where will I find ...?
First aid kit
The first aid kit is stored under the cargo
compartment floor, see “Vehicle tool kit”
(
page 472).
Vehicle tool kit
The vehicle tool kit is stored under the car-
go compartment floor.
The vehicle tool kit includes:

Towing eye bolt

Wheel wrench

Alignment bolt

Vehicle jack

Fuse chart

Spare fuses

Fuse extractor

Collapsible wheel chock

Wheel bolts for spare wheel
(if applicable, see “Mounting the spare
wheel” (
page 500))1Cargo compartment floor, lowered
2Handle cover
Open the tailgate (page 123).
Push in handle cover2 and pull
handle in direction of arrow.
Lift cargo compartment floor 1.
iCheck expiration dates and contents for
completeness at least once a year and replace
missing / expired items.

473 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.
To remove the vehicle tool kit storage
well casing, proceed as described
on (
page 476).6Wheel bolt wrench
7Electric air pump
8Jack
9Spare fuses, fuse extractor, fuse chart
aSpare wheel (collapsible tire)
bAlignment bolt
cTowing eye bolt
dCollapsible wheel chock
eSpare wheel bolts
fVehicle tool kit storage well casing
To remove jack8, loosen the hook
and loop fastener.
!With the cargo compartment cover blind*
installed behind the third-row seats
(
page 306), disengage cargo compartment
cover blind* and flip it forward. Otherwise the
strap of the securing hook could damage the
cargo compartment cover blind*.

474 Practical hints
Where will I find ...?
Vehicle jackThe vehicle jack is located underneath the
storage compartment floor.
Storage position
Remove vehicle jack from its storage
compartment (
page 472).
Push crank handle up.
Operational position
Turn crank handle clockwise until it
engages (operational position).
Before storing the vehicle jack in its stor-
age compartment:

The vehicle jack should be fully col-
lapsed.

The handle must be folded in (storage
position).
Warning!G
The jack is designed exclusively for jacking
up the vehicle at the jack take-up brackets
built into both sides of the vehicle. To help
avoid personal injury, use the jack only to lift
the vehicle during a wheel change. Never
get beneath the vehicle while it is supported
by the jack. Keep hands and feet away from
the area under the lifted vehicle. Always
firmly set parking brake and block wheels
before raising vehicle with jack.
Do not disengage parking brake while the
vehicle is raised. Be certain that the jack is
always vertical (plumb line) when in use,
especially on hills. Always try to use the jack
on level surface.
Make sure the jack arm is fully seated in the
jack take-up bracket. Always lower the
vehicle onto sufficient capacity jackstands
before working under the vehicle.

475 Practical hints
Where will I find ...?
Setting up the collapsible wheel chock
The collapsible wheel chock serves to ad-
ditionally secure the vehicle, e.g. while
changing the wheel.
1Tilt the plate upward
2Fold the lower plate outward
3Insert the plateTilt both plates upward1.
Fold the lower plate outward2.
Guide the tabs of the lower plate all the
way into the openings of base plate3.
For information on where to place wheel
chocks when changing a wheel, see “Lift-
ing the vehicle” (
page 498).
Spare wheel
Warning!G
The dimensions of the spare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style accord-
ingly.
The spare wheel is for temporary use only.
When driving with a spare wheel mounted,
ensure proper tire inflation 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
spare wheel replaced with a regular road
wheel.
Never operate the vehicle with more than
one spare wheel mounted.
Do not switch off the ESP
® with a spare
wheel mounted.

476 Practical hints
Where will I find ...?
Your vehicle is equipped with a spare
wheel with collapsible tire. The spare
wheel is located underneath the cargo
compartment floor (
page 472).
Removing the spare wheel
1Retaining screw
2Spare wheel
3Vehicle tool kit storage well casing
Remove the jack from the vehicle tool
kit (
page 473).
Loosen retaining screw 1 by turning it
counterclockwise.
Turn vehicle tool kit storing well
casing3 by approximately 180°.
The electric air pump (
page 473)
points towards the rear.
Remove vehicle tool kit storage well
casing 3.
Remove spare wheel 2.Reinstalling the spare wheel after use
There are two guide pins in the spare wheel
well that serve to hold the spare wheel in
place.
1Guide pins
iFor information on how to mount the spare
wheel, see “Mounting the spare wheel”
(
page 498).
iIf retaining screw 1 does not come loose,
turn vehicle tool kit storing well casing 3 slightly
counterclockwise. Retaining screw 1 should
then come loose easily.