TPMS MERCEDES-BENZ C300 4MATIC 2008 W204 Owner's Manual

21 At a glance
Exterior view
ItemPage
1Trunk

Unlocking

Opening and closing

Minispare wheel

Vehicle tool kit
269
269
441
420
2Rear lamps431
3Rear window, defrosting265
4Fuel filler flap
Refueling
Gasoline322
322
481
5Doors

Locking and unlocking

Opening and closing

Unlocking/locking in an
emergency
70
70
424
6Exterior rear view mirror

Adjusting97
ItemPage

Auto-dimming rear view
mirrors*

Power folding exterior rear
view mirrors*

Parking position*
(Canada only)
97
100
98
101
7Tires and wheels

Checking tire inflation
pressure

Tire Pressure Monitoring
System (TPMS), (USA only)

Run Flat Indicator (Canada
only)

General information

Minispare wheel

Flat tire
331
341
344
342
331
422
440
8Towing the vehicle
Installing towing eye bolt453
455
ItemPage
9Headlamp cleaning system*112
aFront lamps431
bHood, opening
Engine oil
Coolant
Battery325
327
329
446
cWindshield wipers
Wiper blades, replacing
Wiper blades, cleaning117
438
368
dWindshield
Front window, defrosting
Cleaning with wiper fluid
Cleaning
264
119
368
eRoofs

Power tilt/sliding sunroof

Panorama roof with power
tilt/sliding panel*
273
276

27 At a glance
Instrument cluster
ItemPage
1Combination gauge with:
Fuel gauge
4Fuel tank reserve
warning lamp
Coolant temperature gauge
ÌCoolant temperature
warning lamp
Indicator/warning lamps:
AHigh beam headlamp
indicator lamp
±Engine malfunction
indicator lamp
380
112
374
382
378
;
USA only
3
Canada onlyBrake warning
lamp376
2LLeft turn signal
indicator lamp131
ItemPage
3vElectronic Stability
Program (ESP®)
warning lamp
380
4Speedometer
5Multifunction display
6KRight turn signal
indicator lamp131
7Tachometer with:
HCombination low tire
pressure/TPMS
malfunction telltale,
USA only380
=SRS indicator lamp382
-Antilock Brake System
(ABS) indicator lamp59
8Outside temperature
(manual transmission)
Outside temperature /
additional speedometer
(automatic transmission*)149
149,
169
ItemPage
9Outside temperature
(automatic transmission*)149,
169
aSelected program mode
indicator
(automatic transmission*)140
bGear position/range
indicator
(automatic transmission*)
Additional speedometer
(manual transmission)143
169
cDigital clock151
dInstrument cluster
illumination148

155 Controls in detail
Control system
Menus, submenus and functions
Menu1Menu2Menu3Menu4Menu5Menu6
Trip computerNavi*AudioTel*ServiceSettings
(page 156)(page 158)(page 158)(page 160)(page 164)(page 165)
Commands/submenus
Standard displayShow route guid-
ance instructions,
current direction
traveledSelecting radio
stationTo take a callCall up vehicle mal-
function, warning and
system status mes-
sages stored in mem-
ory
1
1The vehicle status message memory menu is only displayed if there is a message stored.
Reset to factory
settings
Fuel consumption
statistics since startSelecting satellite
radio station*Select a phone
book entryTire Pressure Monitor-
ing System (TPMS)
(USA only)Instrument cluster
submenu
Fuel consumption
statistics since the
last resetOperating
CD player* RedialRun Flat Indicator
(Canada only)
Distance to emptyCall up maintenance
service display
Digital speed-
ometer or outside
temperature

164 Controls in detail
Control system
Service menu
The
Service menu is used for

calling up messages

checking tire inflation pressure elec-
tronically with the TPMS (standard on
U.S. vehicles)

activating Run Flat Indicator (standard
on Canada vehicles)

calling up the maintenance service in-
dicator displayCalling up vehicle malfunction, warning
and system status messages stored in
memory
Use the vehicle status message memory
menu to scan malfunction and warning
messages that may be stored in the
system. Such messages appear in the
multifunction display and are based on
conditions or system status the vehicle’s
system has recorded.
The vehicle status message memory menu
only appears if there are any messages
stored.
Warning!G
Malfunction and warning messages are only
indicated for certain systems and are inten-
tionally not very detailed. The malfunction
and warning messages are simply a remind-
er with respect to the operation of certain
systems and do not replace the owner’s
and/or driver’s responsibility to maintain
the vehicle’s operating safety by having all
required maintenance and safety checks
performed on the vehicle and by bringing
the vehicle to an authorized Mercedes-Benz
Center to address the malfunction and
warning messages (
page 387).

344 Operation
Tires and wheels
If you wish to cancel activation:
Press button $or% to select
No.
Press button# to confirm.
The previous settings will not be
changed
or
Wait until the message
Run Flat Indicator?
Restart
disappears.
Checking tire pressure electronically
with the Tire Pressure Monitoring
System (TPMS), (USA only)The TPMS only functions on wheels that
are equipped with the proper electronic
sensors. It monitors the tire inflation pres-
sure, as selected by the driver, in all four
tires. A warning is issued to alert you to a
decrease in pressure in one or more of the
tires.
iThe Tire Pressure Monitoring System
(TPMS) is equipped with a combination low tire
pressure/TPMS malfunction telltale in the
instrument cluster (
page 26). Depending on
how the telltale illuminates, it indicates a low tire
pressure condition or a malfunction in the TPMS
system itself:

If the telltale illuminates continuously, one
or more of your tires is significantly underin-
flated. There is no malfunction in the TPMS.

If the telltale flashes for 60 seconds and
then stays illuminated, the TPMS system
itself is not operating properly.
iThis device complies with Part 15 of the
FCC Rules. Operation is subject to the following
two conditions:
(1) This device may not cause harmful interfer-
ence, and
(2) this device must accept any interference
received, including interference that may
cause undesired operation.
Any unauthorized modification to this device
could void the user’s authority to operate the
equipment.
Warning!G
The TPMS does not indicate a warning for
wrongly selected inflation pressures. Always
adjust tire inflation pressure according to
the Tire and Loading Information placard on
the driver’s door B-pillar or, if available, the
supplemental tire pressure information on
the inside of the fuel filler flap.
The TPMS is not able to issue a warning due
to a sudden dramatic loss of pressure (e.g.
tire blowout caused by a foreign object). In
this case bring the vehicle to a halt by care-
fully applying the brakes and avoiding
abrupt steering maneuvers.


345 Operation
Tires and wheels
Warning!G
Each tire, including the Minispare, should be
checked monthly when cold and inflated to
the inflation pressure recommended by the
vehicle manufacturer on the Tire and
Loading Information placard or, if available,
on the tire inflation pressure label. If your ve-
hicle has tires of a different size than the
size indicated on the Tire and Loading
Information placard or, if available, the tire
inflation pressure label, you should deter-
mine the proper tire inflation 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.
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
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.
iIf a condition causing the TPMS to malfunc-
tion develops, it may take up to 10 minutes
for the system to signal a malfunction using
the TPMS telltale flashing and illumination
sequence.
The telltale extinguishes after a few minutes
driving if the malfunction has been corrected.
iOperating radio transmission equipment
(e.g. wireless headsets, two-way radios) in or
near the vehicle could cause the TPMS to
malfunction.

346 Operation
Tires and wheels
Tire inflation pressure warnings
If the system detects a significant loss of
tire inflation pressure in one or more than
one tire, a message appears in the multi-
function display.
Example illustration
In addition, a warning signal sounds.
Restarting the TPMSThe TPMS must be restarted when you
have adjusted the tire inflation pressure to
a new level (e.g. because of different load
or driving conditions). The TPMS is then
recalibrated to the current tire inflation
pressures.
Using the Tire and Loading Information
placard on the driver’s door B-pillar
(
page 334) or, if available, the
supplemental tire inflation pressure
information on the inside of the fuel
filler flap (
page 322), make sure the
tire inflation pressure of all four tires is
correct.
Switch on the ignition (page 82).
Press button( or& on the
multifunction steering wheel to select
the menu
Service(page 164).
Press button$or% to select
Tire Pressure.
Press the button# to confirm. The
following message appears in the mul-
tifunction display:
Tire Pressure
Monitor
Active
Press button#.
The following message will appear in
the multifunction display:
Restart tire
pressure monitor?
Yes
or No
Warning!G
It is the driver’s responsibility to calibrate
the TPMS on the recommended cold infla-
tion pressure. Underinflated tires affect the
ability to steer or brake the vehicle. You
might loose control over the vehicle.
iRestart the TPMS after adjusting the tire in-
flation pressure to the inflation pressure recom-
mended for the vehicle operating condition. Tire
pressure should only be adjusted on cold tires.
Observe the recommended tire inflation pres-
sure on the Tire and Loading Information placard
on the driver’s door B-pillar (
page 334). Some
vehicles may have supplemental tire inflation
pressure information for driving at high speeds
(
page 340) or for vehicle loads less than the
maximum loaded vehicle condition
(
page 334). If such information is provided, it
can be found on the inside of the fuel filler flap.

383 Practical hints
What to do if …?
ProblemPossible cause/consequenceSuggested solution
HCombination low tire
pressure/TPMS malfunction
telltale for the TPMS illuminates
continuously.The TPMS detects a loss of pressure in at
least one tire.Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers. Observe the traffic situation
around you.
Read and observe messages in the
multifunction display.
If the tire inflation pressure in the
respective tire(s) has (have) been correct-
ed, the combination low tire pres-
sure/TPMS malfunction telltale goes out
after few minutes driving.
HCombination low tire
pressure/TPMS malfunction
telltale for the TPMS flashes
60 seconds and then stays
illuminated.There is a malfunction in the TPMS.Read and observe messages in the
multifunction display.
Have the TPMS checked at an autho-
rized Mercedes-Benz Center.
After the malfunction has been remedied
the combination low tire pressure/TPMS
malfunction telltale goes out after few
minutes driving.

384 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
Tire and Loading Information placard on the
driver’s door B-pillar (
page 334) or, if
available, the tire inflation pressure label on
the inside of the fuel filler flap (
page 322).
If your vehicle has tires of a different size
than the size indicated on the Tire and
Loading Information placard or the tire
inflation pressure label, you should deter-
mine the proper tire inflation 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.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
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.

392 Practical hints
What to do if …?
Display Possible cause/consequencePossible solution
Shift
to PYou have turned off the engine with the
KEYLESS-GO* start/stop button (Canada only) in
gear selector lever positionN and opened the driv-
er’s door.
or
You have attempted to switch off the engine with the
KEYLESS-GO* start/stop button (Canada only) while
the gear selector lever was in positionR orD.Place the gear selector lever in positionP.
Shift to P or N
To Start EngineYou have attempted to start the engine while the au-
tomatic transmission* was set to position R or D.Move the gear selector lever to position P or N
(
page 140).
Tire Press. Monitor
Inoperative
(USA only)
The TPMS is malfunctioning.Have the TPMS checked at an authorized
Mercedes-Benz Center.
Wheel Sensors Error
Tire Pressure Monitor
Inoperative
(USA only)
There are wheels without appropriate wheel sensors
mounted (e.g. winter tires).Have the TPMS checked at an authorized
Mercedes-Benz Center.
Have the wheel sensors installed at an autho-
rized Mercedes-Benz Center.
Tire Press. Monitor
Currently Unavailable
(USA only)
The TPMS is unable to monitor the tire pressure due
to a nearby radio interference source.As soon as the causes of the malfunction have
been removed, the TPMS automatically be-
comes active again after a few minutes driving.