sensor MERCEDES-BENZ E-CLASS SALOON 2008 Owner's Manual

Display
messages 262 Display messages Possible cause/consequence Possible solution
PRE-SAFE inoperative See
Owner's Manual
G
Risk of injury
PRE-SAFE ®
has failed. All other occupant
safety systems, e.g. airbags, remain avail-
able. X
Visit a qualified specialist workshop. Tyre pressure displayed only
after driving for a
few minutes
The tyre pressure monitor* is measuring
the tyre pressure. X
Drive on.
The tyre pressures will appear in the multi-
function display after you have been driving for
a few minutes. Please correct the tyre pressure
Vehicles with tyre pressure monitor*: the
pressure of one or more tyres is too low
or the tyre pressures of the individual
wheels display a large discrepancy. X
Check the tyre pressure at the next opportunity
and correct it if necessary ( Ypage 229). Tyre pressure
monitor inoperative
The tyre pressure monitor* is malfunc-
tioning. X
Have the tyre pressure monitor* and wheels
checked at a qualified specialist workshop. Tyre pressure
monitor inoperative No
wheel sensors
The tyre pressure monitor* is deactivated
because the vehicle is fitted with wheels
that do not have suitable wheel sensors. X
Have wheels with suitable wheel sensors fitted
at a qualified specialist workshop.
Once wheels with the correct wheel sensors
have been fitted, the tyre pressure monitor*
reactivates automatically after a few minutes
of driving. Practical advi
ce
* optional
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4 2008-02-29T16:57:07+01:00 - Seite 262Dateiname: 6515_3416_02_buchblock.pdf; preflight

Display
messages 263Display messages Possible cause/consequence Possible solution
Tyre press.
mon. Wheel sensor miss-
ing The tyre pressure monitor* is not receiv-
ing a signal from at least one wheel
because a wheel has been fitted which
does not have suitable sensors (e.g. the
spare wheel). Or there is a malfunction in
at least one wheel sensor.
A line is displayed in the multi-function
display for the tyre concerned instead of
the tyre pressure value. X
Have the tyre pressure monitor* and wheels
checked at a qualified specialist workshop.
Once wheels with suitable wheel sensors have
been fitted again, the tyre pressures are dis-
played in the multi-function display after driv-
ing for a few minutes. Tyre pressure
monitor currently unavail-
able The tyre pressure monitor* is temporarily
deactivated. The voltage of the vehicle's
electrical system is too low or radio inter-
ference prevents the reception of sensor
signals. X
Drive on.
Once the causes have been eliminated, the tyre
pressure monitor* automatically reactivates
after a few minutes of driving. Practical advi
ce
* optional
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4 2008-02-29T16:57:07+01:00 - Seite 263 ZDateiname: 6515_3416_02_buchblock.pdf; preflight

Display
messages 273Display messages Possible cause/consequence Possible solution
. Trailer Left-hand
tail lamp
or
Trailer Right-hand
tail lamp The left-hand or right-hand trailer tail lamp
is faulty. X
Replace the bulb. . AUTO lights inop-
erative The light sensor is faulty. Constant head-
lamp mode is switched on. X
Switch the lights to manual control in the on-
board computer (Y page 135).
X Switch the lights on and off using the light
switch. . Rear left turn sig-
nal Back-up bulb on
or
Rear right turn
signal Back-up
bulb on The rear left-hand or rear right-hand turn
signal is faulty. X
Visit a qualified specialist workshop. . Turn signal in
left-hand mirror
or
Turn signal in
right-hand mirror The turn signal lamp on the left-hand or
right-hand exterior mirror is faulty. This
display message will only appear if all
LEDs have failed. X
Visit a qualified specialist workshop. Practical advi
ce
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4 2008-02-29T16:57:07+01:00 - Seite 273 ZDateiname: 6515_3416_02_buchblock.pdf; preflight

Troubleshooting
298 Parktronic*
Problem Possible cause/consequence Suggested solutions
Only the red segments in the
Parktronic warning display are lit.
You also hear a warning tone for
approximately two seconds.
Parktronic is deactivated after
approximately 20 seconds and
the indicator lamp in the Park-
tronic button lights up. Parktronic has malfunctioned
and has switched itself off. X
If problems persist, have Parktronic checked at a qualified spe-
cialist workshop. Only the red segments in the
Parktronic warning display are lit.
Parktronic is deactivated after
approximately 20 seconds. The Parktronic sensors are dirty
or there is interference. X
Clean the Parktronic sensors ( Ypage 248).
X Switch the ignition back on. Only the red segments in the
Parktronic warning display are lit.
Parktronic is deactivated after
approximately 20 seconds. The problem may be caused by an
external source of radio or ultra-
sound waves. X
See if Parktronic functions in a different location. Practical advice
* optional
211_AKB; 2; 5, en-GB
mkalafa
,V ersion: 2.9.4
2008-02-29T16:57:07+01:00 - Seite 298 Dateiname: 6515_3416_02_buchblock.pdf; preflight

Vehicle electronics
345Vehicle electronics
Tampering with the engine electron-
ics
G
Risk of accident
Only have work on the engine electronics
and related components carried out at a
qualified specialist workshop which has the
necessary specialist knowledge and tools
to carry out the work required. Mercedes-
Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety
or on safety-related systems must be car-
ried out at a qualified specialist workshop.
The vehicle's roadworthiness could other-
wise be affected.
! Only have work done on the engine elec-
tronics and its associated parts, such as
control units, sensors and connector leads,
carried out at a qualified specialist work-
shop, e.g. a Mercedes-Benz Service
Centre. Otherwise, vehicle components
may wear more quickly and your vehicle's
warranty and operating permit may be inva-
lidated. Retrofitting electrical and electronic
equipment
Electrical and electronic equipment can jeop-
ardise the operating safety of your vehicle. If
equipment of this kind is retrofitted, it must
be type-approved and bear the emark. The
e mark may be obtained from the equipment
manufacturer or an authorised testing centre.
! Damage or consequential damage arising
from fitting equipment not approved
by Mercedes-Benz is not covered by the
Mercedes-Benz warranty.
If you wish to install two-way radios in the
vehicle, you must obtain formal approval.
Mercedes-Benz approves the installation of
two-way radios if such equipment is installed
professionally and a low-reflection exterior
aerial is used.
The transmission output of the two-way radio
must not exceed the maximum transmission
outputs listed. G
Risk of accident
Two-way radios may interfere with the vehi-
cle electronics and thereby jeopardise the
operational safety of the vehicle and your
own safety if: R
they do not have an exterior aerial
R the exterior aerial is not a low-reflection
aerial
R the exterior aerial has been fitted incor-
rectly G
Risk of injury
Excessive electromagnetic radiation may
also cause damage to your health and the
health of others. Using an exterior aerial
takes into account current scientific dis-
cussions relating to the possible health haz-
ards that may result from electromagnetic
fields.
For this reason, only have the exterior aerial
fitted at a qualified specialist workshop
which has the necessary specialist knowl-
edge and tools to carry out the work
required. Mercedes-Benz recommends
that you use a Mercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified
specialist workshop.
i Mercedes-Benz recommends the use of
an approved exterior aerial. This ensures
optimal reception quality for mobile tele- Technical data
211_AKB; 2; 5, en-GB
mkalafa,
Version: 2.9.4
2008-02-29T16:57:07+01:00 - Seite 345 ZDateiname: 6515_3416_02_buchblock.pdf; preflight