sensor MERCEDES-BENZ E320 2004 W211 User Guide

232 Controls in detailDriving systemsSwitching the Parktronic system
on / off
You can switch off the Parktronic system
manually.
The Parktronic system switch is located in
the lower section of the center console.
1Parktronic system on / off
2Indicator lampSwitching off the Parktronic system

Press button 1.
Indicator lamp 2 comes on.
Switching on the Parktronic system

Press button 1 again.
Indicator lamp 2 goes out.
Parktronic system malfunction
There is a malfunction in the Parktronic
system if the red segments of the
Parktronic system warning indicator come
on and a warning sounds. The Parktronic
system will switch itself off after
30 seconds and the indicator lamp on the
Parktronic system switch comes on.

Have the Parktronic system checked
by an authorized Mercedes-Benz Cen-
ter as soon as possible.If only the red segments of the Parktronic
system warning indicator come on and no
warning sounds, then the sensors of the
Parktronic system are dirty or malfunction-
ing. Malfunction may also be caused by in-
terference from other radio or ultrasonic
signals. The Parktronic system will switch
itself off after 20 seconds.

Clean Parktronic system sensors
(page 305).

Switch on the ignition.
or

Check Parktronic system operation at
another location to rule out interfer-
ence from outside radio or ultrasonic
signals.

275 Operation
Driving instructions
Control and operation of radio trans-mitter
COMAND, radio and telephone*Telephones and two-way radios
Radio transmitters, such as a portable tele-
phone or a citizens band unit should only
be used inside the vehicle if they are con-
nected to an antenna that is installed on
the outside of the vehicle.
Refer to the radio transmitter operation in-
structions regarding use of an external an-
tenna.
Catalytic converter
Your Mercedes-Benz is equipped with
monolithic-type catalytic converters, an
important element in conjunction with the
oxygen sensors to achieve substantial con-
trol of the pollutants in the exhaust emis-
sions. Keep your vehicle in proper
operating condition by following our rec-
ommended maintenance instructions as
outlined in your Service Booklet.
Warning!
G
Please do not forget that your primary re-
sponsibility is to drive the vehicle safely.
Only operate the COMAND (Cockpit Man-
agement and Data System), radio or tele-
phone
1 if road, weather and traffic
conditions permit.
Bear in mind that at a speed of just 30 mph
(approximately 50 km / h), your vehicle is
covering a distance of approximately
44 feet (approximately 13.5 m) every sec-
ond.
1Observe all legal requirements
Warning!
G
Never operate radio transmitters equipped
with a built-in or attached antenna (i.e. with-
out being connected to an external antenna)
from inside the vehicle while the engine is
running. Doing so could lead to a malfunc-
tion of the vehicle’s electronic system, pos-
sibly resulting in an accident and/or
personal injury.
!To prevent damage to the catalytic con-
verters, use only premium unleaded
gasoline in this vehicle.
Any noticeable irregularities in engine
operation should be repaired promptly.
Otherwise, excessive unburned fuel
may reach the catalytic converter,
causing it to overheat, which could
start a fire.

291 Operation
Tires and wheels
Tire pressure changes by approximately
1.5 psi (0.1 bar) per 18°F (10°C) of air
temperature change. Keep this in mind
when checking tire pressure where the
temperature is different from the outside
temperature.
Tire temperature and tire pressure are also
increased while driving, depending on the
driving speed and the tire load.
Check the spare tire periodically for condi-
tion and inflation. Spare tires will age and
become worn over time even if never used,
and thus should be inspected and replaced
when necessary.Checking tire pressure electronically*
The tire inflation pressure monitor only
functions on wheels that are equipped with
the proper electronic sensors. It monitors
the tire inflation pressure, as selected by
the driver, in all four tires. A warning is is-
sued to alert you to a decrease in pressure
in one or more of the tires.
Tire pressure inquiries are made using the
multifunction display (
page 129).The
present inflation pressures are displayed
only after a few minutes’ travel time.You can select the unit of measure used for
the tire inflation pressure by changing the
setting in the control system (
page 143).

Switch on ignition.

Press the k button until the current
inflation pressures for each tire appear
in the multifunction display.
Warning!
G
Follow recommended inflation pressures.
Do not overinflate tires. Overinflated tires
can result in sudden deflation (blowout) be-
cause they are more likely to become punc-
tured or damaged by road debris, potholes,
etc.
Do not underinflate tires. Underinflated tires
wear unevenly, adversely affect handling
and fuel economy, and are more likely to fail
from being overheated.
Do not overload the tires by exceeding the
specified vehicle capacity weight (as indicat-
ed by the label on the pillar in the driver’s
door opening). Overloading the tires can
overheat them, possibly causing a blowout.
iPossible differences between the read-
ings of a tire pressure gauge of an air
hose, e.g. gas station equipment, and
the vehicle’s control system can occur.
The readings issued by the control sys-
tem are more precise.

292 OperationTires and wheels
Activating the tire inflation pressure
monitor
You must activate the tire inflation pres-
sure monitor in the following cases:

If you have changed the tire pressure


If you have replaced the wheels or tires


If you have installed new wheels or
tires

Make sure the tire pressure is correctly
set.

Press buttonè orÿ on the mul-
tifunction steering wheel repeatedly
until the standard display menu ap-
pears in the multifunction display
(page 134).

Press the j or k button repeat-
edly until you see the current inflation
pressures for each tire appear in the
display
or the following message appears in
the displayTire pres. monitor

Pres. display after driving a few
mins. Reactivate using R button
Warning!
G
The tire inflation pressure monitor does not
indicate a warning for wrongly selected in-
flation pressures. Always adjust tire inflation
pressure according to the label on the fuel
filler cap.
The tire inflation pressure monitor is not
able to issue a warning due to a sudden dra-
matic loss of pressure (e.g. tire blowout
caused by a foreign object). In this case
bring the vehicle to a halt by carefully apply-
ing the brakes and avoiding abrupt steering
maneuvers.iOperating radio transmission equip-
ment (e.g. wireless headsets, two-way
radios) in or near the vehicle could
cause the tire inflation pressure moni-
tor to malfunction.
iIf transporting a deflated road wheel or
additional wheel sensors in the vehicle,
the tire inflation pressure monitor
should not be reactivated until the de-
flated wheel or additional wheel sen-
sors have been removed from the
vehicle. Otherwise, the deflated wheel
or additional sensors could cause the
tire inflation pressure monitor system
to malfunction.

305 Operation
Vehicle care
Cleaning the Distronic* system sensor
cover
1Distronic system sensor cover
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water to clean sensor
cover1.
To prevent scratches, never apply strong
force and use only a soft, non-scratchy
cloth when cleaning the sensor cover. Do
not attempt to wipe dirty sensors with a
dry cloth or sponge.Cleaning the Parktronic* system
sensors
1Parktronic* sensors
Use a mild car wash detergent, such as
Mercedes-Benz approved Car Shampoo
with plenty of water.
When using a steam cleaner or power
washer, aim nozzle only briefly from a min-
imum distance of 11.8 in (30 cm) at
sensors1.To prevent scratches, never apply strong
force and use only a soft, non-scratchy
cloth when cleaning the sensor. Do not at-
tempt to wipe dirty sensors with a dry cloth
or sponge.
Wiper blades

Turn on the wipers and place it in a ver-
tical position.
For information on placing the wipers in a
vertical position, see “Replacing wiper
blades” (
page 364).
iRestart the engine after cleaning sen-
sor cover1.
!Fold the windshield wiper arms away
from the windshield to a vertical posi-
tion only. They could otherwise dam-
age the hood.


321 Practical hints
What to do if …
Display
Display message
Possible cause
Possible solution
Distronic
Currently unavailable
see oper. manual
DISTRONIC* is switched off if:

the DISTRONIC cover in the area
of the radiator grille is dirty


the functionality is impaired by
heavy rain or thick fog

If necessary, clean the DISTRONIC cover in
the area of the radiator grille.

Restart the vehicle.
or
DISTRONIC* becomes operational again with-
out the engine being restarted when:


dirt on the grille falls off while driving (e.g.
slush or snow)


the system recognizes full sensor availabili-
ty (due to lessening rain or the road surface
drying)


the message in the multifunction display
disappears


the speed last stored flashes in the display
for five seconds.
You can operate DISTRONIC* as usual again.

338 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
.
High beam,
left
The left high beam lamp is malfunction-
ing.

Replace the bulb as soon as possible.
High beam,
right
The right high beam lamp is malfunction-
ing.

Replace the bulb as soon as possible.
License plate lamp,
left
The left license plate lamp is malfunction-
ing.

Replace the bulb as soon as possible.
License plate lamp,
right

The right license plate lamp is malfunc-
tioning.

Replace the bulb as soon as possible.
Lamp sensor
Visit workshop!
The lamp sensor is malfunctioning. The
headlamps switch on automatically.

In the control system, set lamp opera-
tion to manual mode (
page 146).

Switch on headlamps using the exteri-
or lamp switch.
Low beam, left
The left low beam lamp is malfunctioning.

Visit an authorized Mercedes-Benz
Center as soon as possible.
Low beam, right
The right low beam lamp is malfunction-
ing.

Visit an authorized Mercedes-Benz
Center as soon as possible.

341 Practical hints
What to do if …
Display symbol
Display messages
Possible cause
Possible solution
H
Tire pres. monitor
not activated!
The tire inflation pressure monitor* is un-
able to monitor the tire pressure due to

the presence of several wheel sensors
in the vehicle.


excessive wheel sensor tempera-
tures.


a nearby radio interference source.


unrecognized wheel sensors mount-
ed.

Check the tire pressure at the next
service station.
Tire pres. monitor

Pres. display after
driving a few mins. Re-
activate using R button
The tire pressure is being checked.
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. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.

342 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause
Possible solution
H
Tire pres. monitor
Visit workshop!
The tire inflation pressure monitor is mal-
functioning.
A wheel without proper sensor was in-
stalled.

Have the tire inflation pressure moni-
tor checked by an authorized
Mercedes-Benz Center.

Change the wheel (
page 370).
Tire pres.
Caution, tire defect!
The tire pressure has decreased signifi-
cantly in one or more tires.

Check and correct tire pressure as re-
quired (
page 290).
Tire pres.
Caution, tire defect
One or more tires is deflating.

Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.

Change the wheel (
page 370).
Tire pres.
Check tires!
The tire pressure in one or more tires is
already below the minimum value.
The tire pressure in one or more tires is
low.

Carefully bring the vehicle to a halt,
avoiding abrubt steering and braking
maneuvers.

Change the wheel (
page 370).
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. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.

411 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
ADS
(A
daptive D
amping S
ystem)
Automatically adapts the optimum sus-
pension damping to prevailing driving
conditions.
Airmatic DC
(A
irmatic D
ual C
ontrol)
Automatically selects the optimum sus-
pension tuning and ride height for your
vehicle. Airmatic consists of two com-
ponents:


Adaptive Damping System


Vehicle level control
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.BabySmart
TM airbag deactivation
system
This system detects if a special system
compatible child restraint seat is in-
stalled on the front passenger seat. The
system will automatically deactivate
the passenger front airbag when such a
seat is properly installed
(PASSENGER AIRBAG OFF indicator
lamp located in the center console
comes on). See your authorized
Mercedes-Benz Center for availability.
BabySmartTM compatible child seats
Special restraint system for children.
The sensor system for the passenger
seat prevents deployment of the pas-
senger front airbag if a BabySmart
TM
compatible child seat is installed.
BAS
(B
rake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.Bi-Xenon headlamps*
Headlamps which use an electric arc as
a light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.
CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle functions such as door locking or
windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.