2009 MERCEDES-BENZ E-CLASS SALOON radio

Display messages
Possible causes/consequences and
X
X Solutions DISTRONIC
PLUS currently
unavaila‐
ble See
Owner's
Manual
Distronic Plus* is deactivated and is temporarily inoperative
if:
R
the Distronic Plus* cover in the radiator grille is dirty.
R the sensors in the bumpers are dirty.
R the radar sensor system is temporarily inoperative, e.g. due
to electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R its function is impaired due to heavy rain or snow.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
A warning tone also sounds.
Distronic Plus *is operational again and the display message
disappears when:
R the dirt (e.g. slush) drops away while you are driving.
R the system detects that the sensors are fully available
again.
R the system is within the operating temperature range.
If the display message continues to be shown:
X Clean the Distronic Plus* cover in the radiator grille
(Y page 243).
X Clean the bumpers (Y page 243).
X Restart the engine. DISTRONIC
PLUS inopera‐
tive
Distronic Plus* is faulty. BAS PLUS* and PRE-SAFE
®
Brake*
may also have failed. A warning tone also sounds.
X Visit a qualified specialist workshop. DISTRONIC
PLUS suspended
You have depressed the accelerator pedal. Distronic Plus* is
no longer controlling the speed of the vehicle.
X
Remove your foot from the accelerator pedal. Display messages
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Display messages
Possible causes/consequences and
X
X Solutions Tyre
press.
monitor currently
unavaila‐
ble No sensor signals can be received due to radio interference.
The tyre pressure monitor* has temporarily malfunctioned.
X
Drive on.
The tyre pressure monitor* restarts automatically as soon
as the problem has been solved. Tyre
press.
monitor inopera‐
tive
The tyre pressure monitor* is faulty.
X
Visit a qualified specialist workshop. Tyre
press.
monitor inopera‐
tive No
wheel sen‐
sors The fitted wheels do not have suitable tyre pressure sensors.
X
Fit wheels with suitable tyre pressure sensors.
The tyre pressure monitor* is activated automatically after
driving for a few minutes. Check tyre(s)
G
Risk of accident
Vehicles with tyre pressure monitor*: the tyre pressure has
dropped significantly in one or more of the tyres. The wheel
position is displayed in the instrument cluster. A warning tone
also sounds.
X Stop the vehicle without making any sudden steering or
braking manoeuvres. Pay attention to traffic conditions as
you do so.
X Correct the tyre pressure (Y page 225).
X If necessary, repair any defective tyres or change the wheel
(Y page 309). Caution, tyre
defect
G
Risk of accident
Vehicles with the tyre pressure monitor*: the pressure is
dropping rapidly in one or more of the tyres. The wheel posi-
tion is displayed in the instrument cluster. A warning tone also
sounds.
X Stop the vehicle without making any sudden steering or
braking manoeuvres. Pay attention to traffic conditions as
you do so.
X Repair the faulty tyre or replace the wheel ( Ypage 309). Rectify tyre pres‐
sure
Vehicles with tyre pressure monitor*: the pressure is insuffi-
cient in at least one of the tyres or the pressure difference
between the individual tyres is too great.
X
Check the tyre pressures at the next opportunity. If neces-
sary, correct the tyre pressure (Y page 225). Display
messages
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Display messages
Possible causes/consequences and
X
X Solutions Wheel sen‐
sor(s) missing
Vehicles with tyre pressure monitor*: the tyre pressure sen-
sor signal for one or more of the tyres is missing. The pressure
of the affected tyre is not displayed in the instrument cluster.
X
Have the faulty tyre pressure sensor replaced at a qualified
specialist workshop. PRE-SAFE inopera‐
tive See
Owner's
Manual
G
Risk of injury
Important functions of PRE-SAFE ®
have failed. All other occu-
pant safety systems, e.g. airbags, remain available.
X Visit a qualified specialist workshop. PRE-SAFE Functions
currently
limited
See Own‐
er's Man‐
ual
G
Risk of accident
PRE-SAFE ®
Brake* is temporarily inoperative if:
R the Distronic Plus* cover in the radiator grille is dirty.
R the sensors in the bumpers are dirty.
R its function is impaired due to heavy rain or snow.
R the radar sensor system is temporarily inoperative, e.g. due
to electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R the system is outside the operating temperature range.
R the on-board voltage is insufficient.
R E 63 AMG: you deactivate ESP ®
.
PRE-SAFE ®
Brake *is operational again and the display mes-
sage disappears when:
R the dirt (e.g. slush) drops away while you are driving.
R the system detects that the sensors are fully available
again.
R the system is within the operating temperature range.
R E 63 AMG: you reactivate ESP ®
.
If the display message continues to be shown:
X Clean the Distronic Plus* cover in the radiator grille
(Y page 243).
X Clean the bumpers (Y page 243).
X Restart the engine.
X Wait until the battery is charged sufficiently. 260
Display messagesPractical advice
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Display messages
Possible causes/consequences and
X
X Solutions PRE-SAFE Functions
limited
See Own‐
er's Man‐
ual
G
Risk of accident
PRE-SAFE ®
Brake* is faulty. BAS PLUS* or the distance warn-
ing signal may also have failed.
X Visit a qualified specialist workshop. Radar sen‐
sor deactiva‐
ted See
Owner's
Manual
Vehicles with Distronic Plus*: the radar sensor system is
deactivated.
X Check whether the radar sensor system may be activated
(Y page 362).
X Switch on the radar sensor system (Y page 135).Radar sen‐
sor deactiva‐
ted
autom.
See Own‐
er's Man‐
ual
Vehicles with a navigation system*: the vehicle is close to a
radio-telescope facility and, therefore, must not transmit any
radar signals. The radar sensor system has switched off auto-
matically.
The following functions are unavailable:
R Distronic Plus* (Y page 140)
R BAS PLUS* (Y page 59)
R PRE-SAFE ®
Brake* (Y page 63)
R Blind Spot Assist* (Y page 167)
X Drive on.
These functions are available again as soon as the vehicle
is far enough away from the radio telescope facility
(Y page 362). Child seat in wrong
position
See Own‐
er's Man‐
ual
G
Risk of injury
Vehicles with automatic child seat recognition *on the front-
passenger seat: the child seat is incorrectly positioned.
X Fit the child seat in the correct position. G
Risk of injury
Vehicles with automatic child seat recognition* on the front-
passenger seat: the child seat recognition sensor is faulty.
X Visit a qualified specialist workshop. Blind
Spot
Assist inopera‐
tive
Blind Spot Assist* is faulty.
X
Visit a qualified specialist workshop. Display messages
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Display messages
Possible causes/consequences and
X
X Solutions Blind
Spot
Assist currently
unavaila‐
ble See
Owner's
Manual
Blind Spot Assist* is temporarily inoperative if:
R
you have established the electrical connection between a
trailer and your vehicle.
R the sensors in the bumpers are dirty.
R its function is impaired due to heavy rain or snow.
R the radar sensor system is outside the operating tempera-
ture range.
R the radar sensor system has switched off automatically, for
example in the vicinity of a radio telescope facility.
X When towing a trailer, confirm the display message with
a.
When driving without a trailer:
Blind Spot Assist* is operational again and the display mes-
sage disappears when:
R the dirt (e.g. slush) drops away while you are driving.
R the system detects that the sensors are fully available
again.
R the radar sensor system is back within the operating tem-
perature range.
If the display message continues to be shown:
X Clean the bumpers (Y page 243).
X Restart the engine. Cruise
control
and SPEED‐
TRONIC inopera‐
tive Cruise control and Speedtronic are malfunctioning. A warning
tone also sounds.
X
Visit a qualified specialist workshop. Cruise
control - - - km/h A condition for activating cruise control has not been fulfilled.
You have tried to store a speed below 30 km/h, for example.
X
Activate ESP ®
(Y page 61)
X If conditions permit, drive faster than 30 km/h and store
the speed (Y page 138). 262
Display
messagesPractical advice
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Display messages
Possible causes/consequences and
X
X Solutions b Malfunc‐
tion See
Owner's
Manual The exterior lighting is faulty.
X
Visit a qualified specialist workshop. Vehicles with trailer coupling*: a fuse may have blown.
X
Check the fuses (Y page 328).
X If necessary, replace the blown fuse. Observe the warning
notes.
If the display message continues to be shown:
X Visit a qualified specialist workshop. ¸ Replace
air
cleaner
The engine air filter is dirty and must be replaced
42
.
X Visit a qualified specialist workshop. 4 Check
eng. oil
lev. when
next refu‐
elling The engine oil level has dropped to a critical level. A warning
tone also sounds.
X
Check the engine oil level ( Ypage 220).
X If necessary, top up the engine oil.
X Have the engine checked for leaks if the engine oil needs
topping up more often than usual. + Change
key bat‐
teries The key batteries are discharged.
X
Change the batteries ( Ypage 304). + Key not
detected
(red display
message)
The KEYLESS GO key* is not in the vehicle. A warning tone
also sounds.
If you switch off the engine, you can no longer centrally lock
the vehicle and no longer start the engine.
X
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions.
X Locate the KEYLESS GO key*. The KEYLESS GO key* is not detected while driving because
a powerful radio transmitter is causing interference. A warn-
ing tone also sounds.
X
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions.
X Remove the Start/Stop button* from the ignition
lock (Y page 75).
X Insert the key into the ignition lock and turn it to the desired
position. 42
Only for certain vehicles. 274
Display
messagesPractical advice
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Problem
Possible causes/consequences and
X XSolutions Only the red segments
in the PARKTRONIC
warning display are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. Night View Assist Plus*
Problem
Possible causes/consequences and
X XSolutions The picture quality of
Night View Assist Plus
has deteriorated. The windscreen wipers are smearing the windscreen.
X
Replace the wiper blades (Y page 308). The windscreen is smeared after cleaning the vehicle in a car wash.
X
Clean the windscreen (Y page 242). Windscreen chip damage in the camera's field of vision.
X
Replace the windscreen. The windscreen is misted up on the inside.
X
Demist the windscreen (Y page 179). The windscreen is iced up.
X
De-ice the windscreen (Y page 179). There is dirt on the inside of the windscreen.
X
Clean the inside of the windscreen (Y page 242).Headlamps
Problem
Possible causes/consequences and
X XSolutions The headlamps are mis-
ted up on the inside. Air humidity is very high.
X
Drive with the headlamps switched on.
The headlamps are demisted after a short distance. The headlamp housing is not sealed and moisture has been able
to enter.
X
Have the headlamps checked at a qualified specialist workshop. 294
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Exterior mirrors
Problem
Possible causes/consequences and
X
X Solutions An exterior mirror has
been pushed out of
position.
Vehicles with exterior mirrors that cannot be folded in/out elec-
trically:
X
Move the exterior mirror into the correct position manually.
Vehicles with electrically folding exterior mirrors*:
X Press the mirror-folding button* (Y page 86) repeatedly until
you hear a distinct click.
The mirror housing is engaged again and you can adjust the
mirror as usual ( Ypage 86). Key
Problem
Possible causes/consequences and
X
X Solutions You cannot lock or
unlock the vehicle
using the key. The key batteries are discharged or nearly discharged.
X
Point the tip of the key at the driver's door handle from close
range and try to unlock or lock the vehicle again.
If this does not work:
X Lock or unlock the vehicle using the emergency key element
(Y page 299). The key is faulty.
X
Lock/unlock the vehicle as described in the "Opening and clos-
ing in an emergency" section (Y page 299).
X Have the key checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS GO*.
KEYLESS GO* is in standby mode because the vehicle has not
been unlocked for an extended period.
X
Pull the door handle and then turn the key to position 2in the
ignition lock. KEYLESS-GO* is malfunctioning.
X
Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver's door handle from
close range and press the %/&button.
X Have the key checked at a qualified specialist workshop. There is interference from a powerful source of radio waves.
X
Lock/unlock the vehicle as described in the "Opening and clos-
ing in an emergency" section (Y page 299).296
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