2007 MERCEDES-BENZ R320CDI TPMS

429 Practical hints
What to do if …
Warning!G
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or the tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or the tire inflation pressure label,
you should determine the proper tire infla-
tion pressure for those tires).
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor-
ing system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly underinflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significant-
ly underinflated tire causes the tire to over-
heat and can lead to tire failure.
Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the driv-
er’s responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.
USA only:
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately 1 minute
and then remain continuously illuminated.
This sequence will continue upon subse-
quent vehicle start-ups as long as the mal-
function exists. When the malfunction
indicator is illuminated, the system may not
be able to detect or signal low tire pressure
as intended.TPMS malfunctions may occur for a variety
of reasons, including the installation of in-
compatible replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction telltale after replacing
one or more tires or wheels on your vehicle
to ensure that the replacement or alternate
tires and wheels allow the TPMS to continue
to function properly.

449 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
Check tires
Then restart
Run Flat IndicatorThere was a warning message about
a loss in the tire inflation pressure
and the Run Flat Indicator has not
been reactivated yet.Make sure that the correct tire inflation pressure is set
for each tire.
Then reactivate the Run Flat Indicator (page 384).
Run Flat Indicator
inoperativeRun Flat Indicator is malfunctioning.Have the Run Flat Indicator checked by an authorized
Mercedes-Benz Light Truck Center.
Tire pressure
Check tiresThe Run Flat Indicator indicates that
the pressure is too low in one or more
tires.Carefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers. Observe the traffic
situation around you.
Check and adjust tire inflation pressure as required
(
page 382).
If necessary, replace the wheel (page 497).
Reactivate the Run Flat Indicator after adjusting the tire
inflation pressure values (
page 384).
Tire pressure
displayed after
driving for
a few minutesVehicles with Advanced TPMS*:
The tire inflation pressure is being
checked.Drive the vehicle for a few minutes.

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.

504 Practical hints
Flat tire
6Wheel wrench
Tighten the five wheel bolts evenly, fol-
lowing the diagonal sequence illustrat-
ed (1 to 5), until all bolts are tight.
Observe a tightening torque of
110 lb-ft (150 Nm).
Store jack and all other vehicle tool kit
items back into the storage well.
Warning!G
Have the tightening torque checked after
changing a wheel. The wheels could come
loose if they are not tightened to a torque of
110 lb-ft (150 Nm).
iThe removed road wheel cannot be stored in
the spare wheel well under the cargo compart-
ment floor, but should be transported in the
cargo compartment wrapped in a protective
wrap.
Vehicles with TPMS or Advanced TPMS*:
Do not activate the tire inflation pressure moni-
tor until a full size wheel/tire with functioning
sensor has been placed back into service on the
vehicle.

549 Index
Beverage holder see Cup holder
Bleeding the fuel system
(diesel engine) 505
Bolts, Spare wheel 500
Bottle opener 317
Brake Assist System see BAS
Brake fluid 541
Checking 362
Messages in the multifunction
display 454
Brake lamp
Cleaning lenses 413
Messages in the multifunction
display 463–468
Replacing bulbs 484
Brake pads 348
Messages in the multifunction
display 452
Brakes 348
High-performance brake system
(AMG vehicles only) 350
Warning lamp 421
Break-in the vehicle 346
Bulbs, replacing see Replacing bulbsC
California retail buyers and lessees,
Important notice for 11
Call priority, Tele Aid* 336
Can holder see Cup holder
Capacities and recommended
fuel/lubricants 538
Card holder 32, 317
Cargo compartment
Tie-down rings 299
Cargo compartment cover blind* 306
Cargo tie-down rings 299
Carpets, Cleaning 417
Catalytic converter
(gasoline engine) 357
CD changer* 172, 311
CD player 172
Center console 31
Central locking 189
Automatic 130
Locking/unlocking from the
inside 130
Central locking switch 130Certification label 526, 527
CHECK ENGINE malfunction
indicator lamp 423, 424
Checking tire pressure electronically
Advanced Tire Pressure Monitoring
System (Advanced TPMS)*,
(Canada only) 388
Tire Pressure Monitoring System
(TPMS), (USA only) 385
Child safety
Infant and child restraint systems 85
Children in the vehicle 84
Air bags 75, 86
Blocking rear door window
operation 97
Indicator lamp, Front passenger front
air bag 92
Infant and child restraint
systems 93, 95
LATCH-type child seat anchors 93
Occupant Classification System
(OCS) 88
Cigarette lighter* 321

566 Index
Tire inflation pressure
Checking 382
Checking manually 383
Checking tire pressure electronically,
Advanced Tire Pressure Monitoring
System (Advanced TPMS)*, (Canada
only) 388
Checking tire pressure electronically,
Tire Pressure Monitoring System
(TPMS), (USA only) 385
Recommended tire inflation
pressure 380
Tires 373, 532
Advanced Tire Pressure Monitoring
System (Advanced TPMS)*, (Canada
only) 388
Air pressure 401
Care and maintenance 374
Cleaning 375
Collapsible tire, Spare wheel 534
Combination low tire pressure/TPMS
malfunction telltale, USA only 27
Direction of rotation, Spinning 375
Driving instructions 352
Hydroplaning 352
Important guidelines 373Important notes, Tire inflation
pressure 381
Inflation pressure 380, 382
Inspection 374
Load rating 392, 393, 403
Loading terminology 401
Loading the vehicle 376
Low tire pressure telltale 27, 428
Ply composition and material
used 403
Retreads 373
Rims and tires 532
Rotating 404
Run Flat Indicator (Canada only) 383
Service life 374
Sizes 532
Snow chains 406
Spare wheel, Collapsible tire 534
Speed rating 353, 393, 403
Storing 375
Temperature 381, 400
Terminology 401
TIN 396, 403
Tire Identification Number see TIN
Tire Pressure Monitoring System
(TPMS)*, (USA only) 385TPMS malfunction telltale (USA
only) 428
Traction 353, 399, 403
Tread depth 375, 405
Treadwear indicators 375
Vehicle maximum load on 403
Wear pattern 404
Winter tires 405
Tongue Weight Rating see TWR
Tools 472
Top tether
Children in the vehicle 84
Towing eye bolts 518
Towing the vehicle 517
Tow-starting 514, 517
TPMS (USA only) 385
Traction 403
4-ETS, Driving safety systems 100,
106
Transmission see Automatic transmission
Traveling abroad 356
Tread 403
Tread depth 375
Treadwear indicators 403
Trip computer 191
Trip odometer 157