2014 MERCEDES-BENZ CLA radio

Display messagesPossible causes/consequences and
Solutions
Tire Press.
Monitor Currently
Unavailable
Due to a source of radiointerference, no signals can be received
from the wheel sensors.The tire pressure monitor is temporarily
malfunctioning.
XDrive on.
The tire pressure monitor restarts automatically as soon as the
problem has been solved.
TirePress.
Sensor(s) Missing
There is no signal from the tire pressure sensor of one or several
wheels. The pressure of the affected tire is not displayed in the
multifunction display.
XHave the faulty tire pressure sensor replaced at a qualified
specialist workshop.
Tire Pressure
Monitor
Inoperative No
Wheel Sensors
The wheels mounted do not have a suitable tire pressure sensor.
The tire pressure monitor is deactivated.
XMount wheels with suitable tire pressure sensors.
The tire pressure monitor is activated automatically after driving
for a few minutes.
Tire Press.
Monitor
Inoperative
The tire pressure monitor is faulty.
XVisit a qualified specialist workshop.
Vehicle
Display messagesPossible causes/consequences and
Solutions
Shiftto'P'or'N'
to Start Engine
You have attempted to start the engine with the transmission in
positionRorD.
XShift the transmission to positionPorN.
Auxiliary Battery
Malfunction
The auxiliary battery for the automatic transmission is no longer
being charged.
XVisit a qualified specialist workshop at the next opportunity.
XUntil then, set the automatic transmission to positionPbefore
you switch off the engine.
XBefore leaving the vehicle, apply the electric parking brake.
Depress Brake to
Start Engine
You have attempted to start the engine with the transmission in
positionNwithout depressing the brake pedal.
XDepress the brake pedal.
236Display messages
On-board computer and displays

XPress and hold one of buttonsto!on
the integrated garage door opener.
After a short time, indicator lamplights
up yellow.
iIndicator lamplights up yellow as soon
as button,"or!is programmed for
the first time. If the selected button has
already been programmed, indicator
lampwill only light up yellow after ten
seconds have elapsed.
XRelease button,"or!. Indicator
lampflashes yellow.
XPoint garage door remote control
towards buttonsto!on the rear-view
mirror at a distance of 2 to 8 inches (5 to
20 cm).
iThe required distance between remote
controland the integrated garage door
opener depends on the garage door drive
system. Several attempts might be
necessary. You should test every position
for at least 25 seconds before trying
another position.
XPress and hold button on remotecontrol
until indicator lamplights up green.
If indicator lamplights up green or
flashes, then programming has been
successful.
XRelease button on remote controlfor
the garage door drive system.
XIf indicator lamplights up red: repeat
the programming procedure for the
corresponding button on the rear-view
mirror. When doing so, vary the distance
between remote controland the rear-
view mirror.
iIf the indicator lamp flashes green after
successful programming, the garage door
system is using a rolling code. After
programming, you must synchronize the
garage door opener integrated in the rear-
view mirror with the receiver of the garage
door system.
Synchronizing the rolling code
Observe the "Important safety notes"
(Ypage 273).
Your vehicle must be within reach of the
garage door or exterior gate drive. Make sure
that neither your vehicle nor any persons/
objects are present within the sweep of the
door or gate.
XTurn the SmartKey to position2in the
ignition lock.
XPress the program button of the door or
gate drive (see the door or gate drive
operating instructions, e.g. under
"programming of additional remote
controls").
iUsually, you now have 30seconds to
initiate the next step.
XPress previously programmed button,
"or!of the integrated garage door
opener until the door closes.
The rolling code synchronization is then
complete.
Notes on programming the remote
control
Canadianradio frequency laws require a
"break" (or interruption) of the transmission
signals after broadcasting for a few seconds.
Therefore, these signals may notlast long
enough for the integrated garage door
opener. The signal is notrecognized during
programming. Comparable with Canadian
law, some U.S.garage door openers also
feature a "break".
Proceed as follows:
Rif you live in Canada
Rif you have difficulties programming the
garage door opener (regardless of where
you live) when using the programming
steps
274Features
Stowage and features

The tire pressure values indicated by the on-
board computer may differ from those
measured at a gas station with a pressure
gauge. The tire pressures shown by the on-
board computer refer to those measured at
sea level. At high altitudes, the tire pressure
values indicated by a pressure gauge are
higher than those shown by the on-board
computer.Inthis case, do not reduce the tire
pressures.
The operation of the tire pressure monitor can
be affected by interference from radio
transmitting equipment (e.g. radio
headphones, two-way radios) that may be
being operated in or near the vehicle.
Checking the tire pressure
electronically
XMake sure that the SmartKey is in position
2(Ypage 137) in the ignition lock .
XPress theorbutton on the
steering wheel to select theService
menu.
XPress theorbutton to select
Tire Pressure.
XPress thebutton.
The current tire pressure of each tire is
shown in the multifunction display.
If the vehicle has been parked for over
20 minutes, theTire pressure will be
displayed after driving a few
minutesmessage appears.
After a teach-in process, the tire pressure
monitor automatically detects new wheels or
new sensors. As long as a clear allocation of
the tire pressure value to the individual
wheels is not possible, theTire Pressure
Monitor Activedisplay message is shown
instead of the tire pressure display. The tire
pressures are already being monitored.
Tire pressure monitor warning
messages
If the tire pressure monitor detects a pressure
loss in one or more tires, a warning message
is shown in the multifunction display and the
yellow tire pressure monitor warning light
comes on.
RIf theCorrect Tire Pressuremessage
appears in the multifunction display, the
tire pressure in at least one tire is too low
and must be corrected at the next
opportunity.
RIf theCheck Tire Pressure Soon
message appears in the multifunction
display, the tire pressure in one or more
tires has dropped significantly and the tires
must be checked.
RIf theTire Pressure Warning Tire
Failuremessage appears in the
multifunction display, the tire pressure in
one or more tires has dropped suddenly
and the tires must be checked.
Observe the instructions and safety notes in
the display messages in the "Tires" section
(Ypage 234).
iIf the wheel positions on the vehicle are
rotated, the tire pressures may be
displayed for the wrong positions for a
short time. This is rectified after a few
minutes of driving, and the tire pressures
are displayed for the correct positions.
Restarting the tire pressure monitor
When you restart the tire pressure monitor,
all existing warning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tire pressures as the
reference values for monitoring. In most
cases, the tire pressure monitor will
automatically detect the new reference
values after you have changed the tire
pressure. However, you can also define
reference values manually as described here.
The tire pressure monitor then monitors the
new tire pressure values.
322Tire pressure
Wheels and tires