nificantlytoo low. The tire pressure monitor is
not malfunctioning.
RUSA only: if the hwarning lamp flashe sfor
60 seconds and then remains li tconstantly,
the tire pressure monitor is malfunctioning.
The display also shows amessage:
Ron vehicles withou tsteering whee lbuttons
(Ypage 199)
Ron vehicles with steering whee lbuttons
(Ypage 216)
USA only: if the tire pressure monitor is mal-
functioning ,itmaybe more than10m inutes
before the malfunctio niss hown. The htire
pressure warning lamp flashe sfor 60 seconds
and then remains lit. Whe nthe malfunctio nhas
been rectified, the htire pressure warning
lamp goe soutafte raf ew minutes of driving.
The tire pressure value sindicated by the on-
board compute rmaydiffer from thos emeas-
ured at agasstatio nwithap ressure gage. The
tire pressures shown by the on-board computer
refe rtot hosem easured at sea level .Athigh
altitudes, the tire pressure value sindicated by a
pressure gage are highe rthant hoseshown by
the on-board computer. In thisc ase, do not
reduce the tire pressures.
If radio transmitting equipment (e.g. wireless
headphones, two-wa yradios) is operated inside
the vehicl eorinthe vicinity of the vehicle, this
can interfer ewitht he operatio nofthe tire pres-
su re
monitor.
Checkin gthe tire pressure electroni-
cally on vehicle swiths teering wheel
buttons
Yo uc an onlyc heck the tire pressure electroni-
cally on vehicles with steering whee lbuttons.
Using the steering whee lbuttons
XTurn the key to position 2in the ignition lock.
XPress the =or; button to select the
Servicemenu.
XPress the 9or: button to select
TireP ressure.
XPressato confirm.
The current tire pressure of each whee lis
shown in the display.
If the vehicl ehasbeen parked for over
20 minutes ,the Tirep ressure willb e
displayed after drivingaf ew minutesmessage appears. After
ateach-inp eriod, the tire pressure monitor
automaticall ydetects new wheels or new sen-
sors. As long as aclear allocation of the tire
pressure value to the individual wheels is not
possible, the Tire
PressureMonitorActivemessage is shown insteadoft he tire pressure
display .The tire pressures are already being
monitored.
Tire pressure monito rwarning mes-
sages
If the tire pressure monitor detects alossin
pressure in one or more tires, awarning mes-
sage is shown in the display .The h warning
lamp lights up.
Vehicles withou tsteering whee lbuttons
RIf the CorrectT irePressuremessage is
shown in the display ,the tire pressure in at
leas tone tire is too low. The tire pressure
must be correcte datthe next opportunity.
RIf the CheckTirePressureSoonmessage
is shown in the display ,the tire pressure in
one or more tire shasdropped significantly.
The tire smustbec hecked.
RIf the WarningT ireMalfunc.message is
shown in the display ,the tire pressure in one
or more tire shasdropped suddenly. The tires
must be checked.
Vehicles with steering whee lbuttons
RIf the Adjust TireP ressuremessage is
shown in the display ,the tire pressure in at
leas tone tire is too low. The tire pressure
must be correcte datthe next opportunity.
RIf the Check Tiresmessage is shown in the
display ,the tire pressure in one or more tires
hasd ropped significantly .The tire smustb e
checked.
RIf the WarningTireMalfunctionmessage
is shown in the display ,the tire pressure in
one or more tire shasdropped suddenly. The
tire sm ustbec hecked.
Alway sreada nd follo wthe instructions and
safety notes relate dtothe display messages,
which can be found in the "Tires" section.
Rfor vehicles withou tsteering whee lbuttons
(Ypage 199)
Rfor vehicles with steering whee lbuttons
(Ypage 216)
Vehicles with steering whee lbuttons: if the
whee lpositions on the vehicl eare rotated,t he
tire pressures maybed isplayed for the wrong
276Tire pressure
Wheel sand tires
