When the malfunction indicator is illuminat
ed, the system may not be able to detect or
signal low tire pressure as intended. TPMS
malfunctions may occur for a variety of rea
sons, including the installation of replace
ment or alternate tires or whee ls on the veh i
cle that prevent the TPMS from funct io ni ng
p roperly . Always check the T PMS malfunct ion
tellta le afte r replacing one o r more t ires or
wheels on your veh icle to ensure that the re
p lacemen t or a lternate tires and wheels allow
the TPMS to continue to function properly .
Tire pressure indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
Fig. 187 Display: underinflatio n warning
Using the ABS sensors, the tire pressure moni
toring system compares the t ire tread circum
ference and vibration characteristics of the in
d iv idual tires . If the pressure decreases in one
or mo re tires, th is is indica ted in the instru
ment clus ter with a
RE wa rning symbol and a
message¢
fig. 187 . The driver message in the
disp lay goes out after 5 seconds . The driver
message can be displayed again by pressing
the
! SET ! button. If only one tire is affected,
the display will indicate its pos ition.
The ti re pressu re monitoring system must be
reset via radio or MMI* each time the pres
sures are adjusted (e.g . when switching be
tween partia l and full load pressure) or after
changing or replacing a t ire on your vehicle
¢
page 242 . The TPMS indicator only moni
tors the tire pressure that you have prev iously
Tire s an d wheel s 241
stored . You can find the recommended t ire
pressures for yo ur vehicle on the label on driv
er's side 8-pillar ¢
page 226.
T ire tread circum ference and vibration charac
teristics can change and cause a tire pressure
warning if:
- t he t ire p ress ure in one or more tires is too
low,
- t he t ire has s tructural damage,
- the t ire pressure was changed, wheels rotat-
ed or replaced but the TPMS was not reset
¢ page 242.
Warning symbo ls
RE Loss of pressure in at least one tire c> & .
Check the tire or tires and replace or repa ir if
necessary. The
RE ind icator light in the instru
ment cluster a lso illuminates
c::!;> page 13.
Check/correct the press ures of all fou r tires
and reset TPMS via radio or MMI*.
Ill (T ir e Pre ssure Monitor ing System) Tire
press ure: Syst em malfun ction!.
If II! appears after switching the ignition on
o r while dr iv ing and the
RE i ndicator light in
the instr ume nt cluster blinks for app rox i
mately o ne minute and t hen stays o n, there is
a system malf unct ion.
Attempt to store the co rrect tire pressure
¢ page 242 . If the ind icator light does not
tu rn off o r if it turns on sho rtly the reafter, im
med iate ly dr ive your vehicle to a n author ized
Audi dealer or au thorized repair faci lity to
have the malfunc tion corrected .
A WARNING
-=
-If the tire pressure indicator appears in
the instrument cluster display, one or
more of your t ires is significant ly under
inflated. Reduce your speed immediately
and avoid any hard steer ing or b raking
maneuvers. Stop as soon as possib le and
check the tires and their pressures. In
flate the tire p ressure to the prope r pres
sure as indica ted on the vehicle's tire
pressu re labe l
¢page 226. Driving on a
significantly under-inflated tire causes
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