Media AUDI A8 2014 Workshop Manual

remain continuously illuminated. This se­
quence will continue upon subsequent vehicle
start-ups as long as the malfunction exists.
When the malfunction indicator is illuminat­
ed, the system may not be able to detect or
signal low tire pressure as intend ed . TPMS
malfunctions may occur for a variety of rea­
sons, including the installation of replace­
ment or alternate tires or wheels on the vehi­
cle that prevent the TPMS from functioning
properly . Always check the TPMS malfunction
telltale after replacing one or more tires or
wheels on your vehicle to ensure that the re­
placement or alternate 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. 213 Display : underi nflatio n warning
Fig. 214 Di splay: Syste m mal functio n
Using the ABS sensors, the tire pressure moni­
toring system compares the tire tread circum­
ference and vibration ch arac teristics of the in­
dividual tires. If the pressure decreases in one
or more tires, this is indicated in the instru-
Tires and wheels 267
ment cluster with a warning symbol [I] and a
message
r::!) fig. 213.
The tire pressure monitoring system must be
reset via MMI each time the pressures are ad ­
justed (e.g. when switching between partial
and full load pressure) or after changing or re­
placing a tire on your vehicle
r::!) pag e 268. The
TPMS indicator only monitors the tire pres­
sure that you have previously stored. You can
find the recommended tire pressures for your
vehicle on the label on driver's side 8-pillar
<=:>page 252 .
Tire tread circumference and vibration charac­
teristics can change and cause a tire pressure
warning if:
- the tire pressure in one or more tires is too
low,
- the tire has structural damage,
- the tire pressure was changed, wheels rotat-
ed or replaced but the TPMS was not reset
r::!) page 268 .
Warning symbols
[I] Loss of pressure in at least one tire q &..
Check the tire or tires and replace or repair if
necessary. The indicator light
[I] in the instru­
ment cluster also illuminates
¢page 11.
Check/correct the pressures of all four tires
and reset TPMS via MMI.
i:mJ) (Tire Pressure Monitoring System) Tire
pressure! System malfunction .
If@m appears after switching the ignition on
or while driving
q fig. 214 and the indicator
light
[I] in the instrument cluster blinks for
approximately one minute and then stays on,
there is a system malfunction .
Attempt to store the correct tire pressure
¢ page 268. If the indicator light does not
turn off or if it turns on shortly thereafter, im­
mediately drive your vehicle to an authorized
Audi dealer or authorized repair facility to
have the malfunction corrected .

268 Tire s and wheel s
_&. WARNING
-If th e tire pressure indicator appea rs in
the instrument cluster d isplay, one or
more of your tires is s ignificantly under­
inflated. Reduce your speed immediately
and avoid any hard steering or bra king
maneuvers . Stop as soon as possible and
check the t ires and the ir pressures. In­
flate the tire pressure to the proper pres ­
sure as indicated on the vehicle 's t ire
pressure label
q page 252. Driving on a
signif icant ly under-inflated tire causes
the tire to overheat and can lead to tire
failure. Under-inflation also is likely to impair the vehicle's handling and stop­
ping ab ility .
- The driver is responsible for ma inta ining
the correct tire pressures. You must check the t ire pressures regula rly.
- Under certain cond itions (such as a spor­
ty driving style, winter condit ions or un­
paved roads), the pressure mon itor ind i­
cator may be de layed.
- Ask your author ized Audi dealer if r un­
flat tires may be used on your veh icle.
Yo ur vehicle regist rat ion becomes inval id
if yo u use these tires when not permit ­
ted. Damage to your vehicle or acc idents
cou ld also resu lt.
(D Tips
- The tire pressure monitoring system
stops working when there is an ESC/ABS
malfunction.
- Using snow chains may result in a system
malfunction.
- The tire pressure monitoring system on
you r A udi was developed using t ires with
the "AO" or "RO" identification on the
tire sidewall ~
page 259 . We recom­
mend using these t ires.
Reset tire pressure monitoring system
Applies to vehicles: with tire pressure monitoring system
If the tire pressure is adjusted, wheels are ro­
tated or changed, the TPMS must be reset via
MMI .
.. Switch on the ignition.
.. Select in the MMI :
ICARI function button>
Car system s control button > Servicing &
check s > Tire pres sure monitoring > Store
tire pre ssur es > Ye s, store now .
@ Tips
Do not sto re the tire pressure if there are
s now cha ins on the tire.

Emergency situations
General
This chapter i s intended for trained emer­
gency crews and working personnel who have the necessary tools and equipment to
perform these operations.
Starting by pushing or
towing
(D Note
Ve hicles w ith an au tomatic tra nsmission
cannot be started by pus hing o r tow ing.
Starting with jumper
cables
If necessary, the engine can be started by
connecting it to the battery of another vehi­
cle.
If the engine shou ld fail to start because of a
discha rged o r wea k battery, the battery can be
connected to the battery o f
another vehicle,
using a
pair of jumper cables to start the en­
g ine.
Jumper cables
Use only jumper cables of sufficiently la rge
c ross section to carry the starter c urrent safe­
l y. Refer to the man ufacturer's specifications.
Use only jumper cables with
insulated te rm i­
na l clamps wh ic h are d istinctly marked:
plus(+) cable i n mos t cases co lore d red
minu s(-) cable
in most cases colored black .
A WARNING
Batterie s contain e lec tricity, ac id, an d gas.
A ny of these can cause ve ry ser io us or fatal
inju ry. Follow the instructions below f or
safe han dling of your veh icle's b attery .
- Alway s shield you r eyes and avoid lean­
ing over the bat te ry whenever possib le.
- A dis ch arged battery c an free ze at tem­
peratures ju st be low 32 °F ( 0 °C ). Befo re
Emergency situations 283
connecting a jumpe r cab le, you must
thaw the frozen battery c omp lete ly, ot h­
erwise it could explode.
- Do not allow battery acid to contact eyes
or skin. Fl ush any contacted area with
wate r immediately.
- Improper use of a booster battery to start a vehicle may cause an explosion.
- Vehicle batter ies genera te exp losive gas­
es. Keep spar ks, flame and lighted c iga ­
rettes away from batte ries.
- Do not try to jump start any ve hicle w ith
a low ac id leve l in the battery.
- The vo ltage of the booste r batte ry m ust
a lso have a 12-Vol t rating. T he capacity
(Ah) of the booster battery sho uld not be
lowe r tha n that of the discharged bat­
tery . Use of batte rie s of d iffe ren t voltage
or substantially diffe rent "Ah" rat ing
may c au se an exp losion and persona l in­
JU ry.
- N ever cha rge a fro zen battery. Gas trap­
pe d in the ice may cause a n ex plosion.
- Never cha rge or use a batte ry tha t h as
been fr ozen. T he battery case may have
be weakened.
- Us e of b atter ies of differe nt voltage or
sub stant ia lly diffe ren t ca pa city (Ah) ra t­
i ng may c ause an ex plosion an d injury .
Th e capac ity (Ah) of the booster bat tery
should not be lower than that of the dis ­
charged batte ry .
- Before you chec k any thing in the engine
compa rtment, always read and hee d all
WARNINGS
¢page 231.
(D Note
-App lyin g a higher vo ltage booster ba t­
t ery w ill cause expens ive damage to se n­
sit ive e lectronic com ponents, such as
cont ro l units, relays, rad io, etc.
- The re must be no electrical contact be­
tween the vehicles as ot herwise c urrent
co uld a lready start to f low as soon as the
p o sit ive(+) term inals a re connected. ..,. •
•