2015 AUDI A6 warning light

268 Tires and wheels
Tire pressure indicator appears
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. 200 Display : und erinflatio n warn ing
Fig. 201 Display: Syste m malfunction
Using the ABS sensors , the tire pressure moni­
toring system compares the tire tread circum­
ference and vibration characteristics of the in­
dividual tires.
If the pressure decreases in one
or more tires, this is indicated in the instru­
ment cluster with a warning symbol
[9] and a
message ¢
fig. 200.
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¢
page 269 . 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 244.
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,
- th e tire pressure was changed, wheels rotat-
ed or replaced but the TPMS was not reset
¢page 269.
- the spare tire* is mounted .
Warning symbols
[9] Loss of pressure in at least one tire¢&. .
Check the tire or tires and replace or repair if
necessary. The indicator light
[9] in the instru­
ment cluster also illuminates
¢page 12.
Check/correct the pressures of all four tires
and reset TPMS via MMI.
Ill (Tire Pressure Monitoring System ) Tire
pressure! System malfunction . Iflll appears
after switching the ignition on or while driving
¢
fig. 201 and the indicator light [9] in the in­
strument cluster blinks for approximately one
minute and then stays on, there is a system
malfunction . Attempt to store the correct tire
pressure ¢
page 269. If the indicator light
does not turn off or if it turns on shortly
thereafter, immediately drive your vehicle to
an authorized Audi dealer or authorized repair
facility to have the malfunction corrected.
A WARNING
- If the tire pressure indicator appears in
the instrument cluster display, one or
more of your tires is significantly under­
inflated. Reduce your speed immediately
and avoid any hard steering or braking
maneuvers. Stop as soon as possible and
check the tires and their pressures. In­
flate the tire pressure to the proper pres ­
sure as indicated on the vehicle's tire
pressure label¢
page 244 . Driving on a
significantly 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 ability.
- The driver is responsible for maintaining the correct tire pressures. You must
check the tire pressures regularly. ..,

M N
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,...., ..,., ,....,
A WARNING 1=
You or your passengers could be injured
while changing a wheel if you do not fol­
low these safety precautions:
- If you have a flat tire, move a safe dis­
tance off the road. Turn off the engine,
turn the emergency flashers on and use
other warning devices to alert other mo­
torists.
- Make sure that passengers wait in a safe
place away from the vehicle and well
away from the road and traffic.
- To help prevent the vehicle from moving
suddenly and possibly slipping off the
jack, always fully set the parking brake
and block the wheel diagonally opposite
the wheel being changed. When one
front wheel is lifted off the ground, plac­
ing the Automatic Transmission in P
(Park) will
not prevent the vehicle from
moving.
- Before you change a wheel, be sure the
ground is level and firm. If necessary,
use a sturdy board under the jack.
- Always store the vehicle tool kit, the jack
and the replaced tire in the luggage com­
partment
¢ page 132.
{!) Tips
Before changing the wheel, you must acti­
vate the jacking mode, so that the auto­ matic controls for the Adaptive Air Sus­
pension* do not make it more difficult to
lift the vehicle with the jack¢
page 2 75.
Changing a wheel
When you change a wheel, follow the se ­
quence described below step-by-step and in
exactly that order .
1. Activate the vehicle jack mode*
c::;. page 275.
-
2. Remove the decorative wheel cover* . For
more details see also
¢page 274, Deco­
rative wheel covers
or ¢ page 2 7 4,
Wheels with wheel bolt caps.
3. Loosen the wheel bolts¢ page 274.
What do I do now? 273
4.
5.
6.
7.
8.
9.
Locate the proper mounting point for the
jack and align the jack below that point
¢page 275.
Raise the car with the jack ¢page 275.
Remove the wheel with the flat tire and
then install
the spare <=> page 2 76.
Tighten all wheel bolts lightly.
Lower the vehicle with the jack .
Use the wheel bolt wrench and
firmly
tighten all wheel bolts¢ page 274 .
10. Replace the decorative wheel cover*.
11. Deactivate the vehicle jack mode* in the
MMI:
ICARI function button > (Car)* sys­
tems
control button > Servicing & checks
> Air susp.: jack mode > Off .
The vehicle jack mode* switches off automati­
cally at speeds above 6 mph (10 km/h).
A WARNING
Always read and follow all WARNINGS and information<=>
A in Raising the vehicle on
page 275
and <=> page 277.
After changing a wheel
A wheel change is not complete without the
doing the following.
.,. Always store the vehicle tool kit, the jack*
and the replaced tire in the luggage com­
partment
c::;. page 132.
.,. Check the tire pressure on the spare wheel
immediately after mounting it.
.,. As soon as possible, have the
tightening
torques
on all wheel bolts checked with a
torque wrench. The correct tightening tor­
que is
90 ft lb (120 Nm) .
.,. Have the flat tire
replaced as soon as possi­
ble.
(D Tips
- If you notice that the wheel bolts are
corroded and difficult to turn while
changing a tire, they should be replaced
before you check the tightening torque.
- Drive at reduced speed until you have the
tightening torques checked.
ll>
•
•

282 Fuses and bulb s
No. Equipment Amps
s Parking system s
6 Rear Seat Entertainment s
7 Start-Stop-System s
8 side ass ist s
9
Gateway, Vehicle electrical sys-
s tern control module 1
10 Sport d ifferential s
Fuse panel © (black)
No. Equipment Amps
1 Rear seats 20
Fuse panel ® (black)
No. Equipment Amps
1 Movement-activated luggage 1
compartment lid opening
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace burned
out bulbs for you .
It is becoming increasingly more and more
difficult to replace vehicle light bulbs since in
many cases, other parts of the car must first
be removed before you are able to get to the
bulb . Thi s appl ies especial ly to the light bu lbs
in the front of your car which you can only
reach through the engine compartment .
Sheet metal and bulb ho lders can have sharp
edges that can cause ser ious cuts, and parts
must be co rrectly taken apart and then prop­
erly put back together to help prevent break­
age of parts and long term damage from wa­
ter that can enter housings that have not been
properly resealed.
F or your safety, we recommend that you have
your author ized Audi dealer rep lace any bulbs
for you, since your dealer has the proper tools,
the correct bu lbs and the expertise.
Gas di scharge lamps (Xenon lights):
Due to the high e lectr ica l voltage, have the
bulbs replaced by a qualified technician.
Head lights w ith Xenon light can be identified
by the high voltage sticker .
LED headlights* require no maintenance .
P lease contact your authorized Audi dealer if a
bulb needs to be replaced.
A WARNING
Contact with high-voltage components of
the electrical system and improper re­ placement of gas discharge (Xenon) head­
light bulbs can cause ser ious personal in­
jury and death.
- Xenon bulbs are pressur ized and can ex­
p lode when being changed.
- Changing Xenon lamps requ ires the spe­
cial tra ining, instructions and equip­
ment.
- Only an authorized Audi dealer or other
qualified workshop should change the
bu lbs in gas discharge lamps .
_& WARNING
There are parts with sharp edges on the
openings and on the bulb holders that can
cause ser ious cuts.
- If you are uncertain about what to do,
have the work performed by an author­
ized Audi dealer or other qualified wo rk­
shop . Serious personal injury may result
from improperly performed work .
(D Tips
-If you still prefer to replace the light
bulbs yoursel f, be aware that the engine
compartment is a hazardous area to
work in
c:::> page 222<=::> .&.
- It is best to ask your authorized Audi
dealer whenever you need to change a
bulb .

M N
0 <.J 'SI: ,...., \!) ..,.,
,...., ..,., ,....,
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 fr ozen 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-volt rating. The capacity
(Ah) of the booster battery sho uld not be
lowe r tha n that of the discharged bat­
tery . U se 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 222.
(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. ..,. •
•

284 Emergency situations
@ Tips
The discharged battery must be properly
connected to the vehicle's electrical sys­
tem. When jump starting or charging the
battery, never connect the negative
ground cable to the battery negative post
because the batte ry manager system must
be able to detect the battery 's state of
charge. Always connect the negative
ground cab le to the negative ground post
of the battery manager control unit.
Use of jumper cables
Make sure to connect the jumper cable
clamps in exactly the order described below!
Fig. 218 Engine compartment: connecto rs for jump
start cables and charger
Fig. 219 Jump start ing with the battery of another ve·
hide: @-booster battery, @-discharged ve hicle bat­
tery
The procedure described below fo r connecting
jumper cables is intended to provide a jump
start for your vehicle.
Vehicle with discharged battery:
.,. Turn off lights and accessories, move lever
of automatic transmission to N (Neutral) or
P (Park) and set parking brake.
Connect POSITIVE(+) to POSITIVE(+)
(red)
.,. Open the red cover on the positive terminal
¢fig. 218 .
1. Connect one end of the red positive cable
on the
jump start bolt c::;, fig. 219 @ (bolt
under the red cover = "positive") of the ve­
hicle to be started @.
2. Connect the other end to the positive ter-
mina l@ of the booster battery@.
Connect NEGATIVE (-) to NEGATIVE (-)
(black)
3. Connect one end of the black negative ca­
ble to the negat ive terminal @ of the
booster battery @.
4. Connect the other end to the
jump start
pin © (bolts with hex head bolt= "nega­
tive") of the vehicle to be started @.
Starting the engine
.,. Start the engine of the veh icle w ith the
booster battery@. Run the engine at a
moderate speed .
.,. Start engine with discharged vehicle battery
@ in the usual manner.
.,. If the engine fails to start, do not keep the
starter cranking for longer than 10 seconds.
Wait for about 30 seconds and then try aga in .
.,. With engine running, remove jumper cables
from both vehicles in the exact
reverse o r­
de r .
.,. Close the red cover on the positive term inal.
T he battery is vented to the outside to prevent
gases from entering the veh icle inter ior. Make
sure that the jumper clamps are well connect­
ed with their metal parts in full contact with
the battery terminals.
_& WARNING
To avoid serious personal injury and dam­
age to the vehicle, heed all warnings and
instructions of the jumper cable manufac­
turer. If in doubt, call for road service .
- Jumper cables must be long enough so
that the veh icles do not touch.
-

29 0 Techni cal data
designated seating position) and luggage
weight¢ .&,.
Gross Axle W eight Rating
The Gross Axle Weight Rating is the maximum
l oad that can be applied at each axle of the
vehicle ¢Lr!, .
Vehicle cap acit y weight
The vehicle capac ity we ight (max. load) is list­
ed either on the dr iver's side B-pilla r or inside
the fuel filler flap.
_& WARNING
- T he actual Gross Axle Weight Rat ing at
the front and rear axles shou ld not ex­
ceed the permissible weights, and their
combination must not exceed the Gross
Vehicle Weight Rating.
Dimensions
Length
Width
Width (across mirrors) Height (unloaded)al
-
-Exceeding permissible weight ratings can
result in vehicle damage, accidents and
personal injury.
(D Note
- The vehicle capacity weight figures apply
when the load is distributed evenly in the
vehicle (passengers and luggage). When
transport ing a heavy load in the luggage
compartment, carry the load as near to
the rear axle as poss ible so that the vehi­
cle's handling is not impaired.
- Do not exceed the maximum permissible axle loads or the maximum gross veh icle
we ight. Always remember that the vehi­
cle's handling w il l be affected by the ex­
tra load. Therefo re, adj ust your speed ac­
cordingly.
- Always observe local regulat ions.
in (mm)
193.9 (4925)
i n (mm) 73.8 (1874)
in (mm)
82.1 (2086)
in (mm) 57.8 (1468)
al The he ight of the veh icle depen ds on the t ires and the suspension.
When driving up steep ramps, on rough roads,
over curbs, etc . it is important to remember
that some parts of your vehicle, such as spoil-
Capacities
Fuel tank: total capacity
-gasoline engine
- d iesel engine
Windsh ield fluid container
Windsh ield and headlight washer fluid containeir* ers
or exhaust system components, may be
close to the ground . Be carefu l not to damage
them.
gal ( liters)
approx. 19.8 (75.0)
gal ( liters) approx. 19.3 (73.0)
quarts (liters) approx. 3.7 (3.5)
quarts (liters) approx. 5.2 (4 .9)

A
A/C (automatic climate control) .... .. .. 70
A/C (climate control) . . . . . . . . . . . . . . . . . 68
Accessories .. ............. .... .. .. . 294
Active lane assist . . . . . . . . . . . . . . . . . . . . 93
Activating and deactiva ting . .. .. .. .. .. 94
C leaning the camera area ... ... .. .. . 2 10
Descript ion ...... ..... ... ... ... .... 93
Instrument cluster indicator light . . . . . 94
Messages . . . . . . . . . . . . . . . . . . . . . . . . . 94
Notes on instrument cluster display .. .. 94
Sett ing the steering wheel vibrat ion .. .. 95
Adaptive a ir s uspension/sport . ... .. .. . 100
Adapt ive cruise control . . . . . . . . . . . . . . . . 84
C lea ning the sensor ....... .. .. .. .. . 210
Messages .. ............. .... .. .. .. 91
Request for driver intervention . . . . . . . . 89
Stop-and-go traffic . . . . . . . . . . . . . . . . . 88
Adapt ive Lig ht (defective) ... .. .. .. .. .. 22
AdBlue .. .. .. ................. .. ... 218
F il ling . .. .. ................. .. ... 220
Messages in the instrument cluster dis -
play . .. .. .. .. ........ ... .. ... ... . 219
Adding Eng ine coolant ........... .... .. .. . 229
Eng ine oil .. .. ........... .. .. .. ... 226
W indshield washer fluid ....... ... .. 235
Addit ives
E ng ine oi l .. ............. .... .. ... 226
Adj usti ng
A ir dist ribution (au toma tic climate con-
trol) ... .. .. .. .... .. .... ... .. .. .... 71
air distribution (cl imate control) ... .. .. 68
Front seats . . . . . . . . . . . . . . . . . . . . . . . . 52
Instrument illum inat ion ... .. .. .. .. .. 46
Steer ing colum n elec trically .. .. .. .. .. 73
Steer ing colum n manually . .. .. .. .. .. 73
Temperature (automat ic climate co ntrol) 71
Temperature (climate control) .. ... ... 68
Airbag system . . . . . . . . . . . . . . . . . 145, 166
Advanced Airbag System ... .. .. .. .. . 149
Advanced Airbag System components . 153
Care ...... ... ................ .... 161
M N Chi ld ren ... ... .. .. ...... .. .. .. .. . 173 0
~ Chi ld restra ints ........... .. .. .. ... 173
~ Components (front airbags) .. .. .. .. . 153 1.1"1 ,...., 1.1"1 ,....,
Inde x 297
Danger of fitting a ch ild seat on the front
passenger seat ..... . ... ...... ... .. 147
•
Disposa l .. .. .. .. .. . .. ... .... ... .. 161 •
Front a irbags . . . . . . . . . . . . . . . . 149, 151
How do the front airbags work? .... .. 155
How many a irbags does my vehicle
have? .. .. .. .. .. .. . .. .... .... .... 153
How the Advanced Airbag System com-
ponents work togethe r ......... .... 155
Impo rtant sa fe ty instru ctions on the
knee airbag sys tem ... .. .... ... .. .. 164
Important t hings to know . . . . . . . . . . . 145
Knee airbags ... .... . ... ...... ... .. 162
Monitoring .. .. .. ................. 157
PASSENGER AIR BAG OFF light ..... .. 158
Repairs ... .. .. .. .... ............. 161
Safety instructions .. .............. . 160
S ide a irbags ... .. .. . .. .... .... .. .. 164
S ide curtain airbags . ... ..... ... .... 167
Warning/ind icator lights ........ .. .. . 19
Warning/Indicato r lights ....... .. .. 157
When must t he system be inspected? 157
A ircraft
Transpo rting your vehicle 287
A lcantara
Cleaning .. .. .. .. ................. 212
A ll-wheel drive .. .... . ... ...... ... .. 197
Winter tires ..... .. . .. .. ..... ... .. 264
Alternato r . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Amb ience lighting . ................. . 46
Anti -freeze
refer to Engine coolant . ..... ... .. .. 228
Anti- lock b raking system ............ . 193
Warning/ind icator lights ........ .. .. . 19
Anti-slip regu lation .. ........... .... 193
Warning/ind icator lights .. .. ... ... .. . 19
Anti-theft systems Electronic immobi lizer ....... ... .. .. . 32
Asht ray .... .. .. .. .. . ............... 58
Audi braking guard
refer to brak ing guard ............. .. 84
Audi drive select
refer to drive select ... ............. 100
A udi Se rv ice Repair Manuals and Liter a-
tu re .. ... .. .. .... .. . .. ... .... ... .. 292

298 Index
AUTO automatic climat e control . ... ... ... ..
71
Automatic headlights ....... .. .... .. 43
climate control . . . . . . . . . . . . . . . . . . . . . 68
Auto Lock . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3
Automatic belt retractor .. ... ..... .. .
139
Automatic climate control
Air vents . .... ........... .... .... ..
7 1
Automatic recirculation . . . . . . . . . . . . . . 72
Opera tion . . . . . . . . . . . . . . . . . . . . . . . . . 70
Setup . .. .. ................ ... .. .. 72
synchron izing .... ......... ... .. .. .. 71
Automatic Shift Lock (ASL) . . . . . . . . . . . 108
Automatic transmission ..... .. .. .. .. . 107
Automatic Shift Lock (ASL) .......... 108
Driving .................... ..... . 109
Emergency mode .......... ... .... . 112
Emergency release .......... .. .... . 113
Kick-down . . . . . . . . . . . . . . . . . . . . . . . . 111
Manual shift program ..... .... .... . 111
Selector lever . . . . . . . . . . . . . . . . . . . . . 107
Automatic wipers .................. .. 48
Auto Safety Hotline ........ .. .. .. .. . 134
Ave rage consumption ....... .. .. .. .. . . 25
Average speed . . . . . . . . . . . . . . . . . . . . . . .
25
Avoid damaging the vehicle .. .. .. .. .. . 201
B
Ba ttery . .. .. ... .. ..... ... .... .. .. . 232
Charging . .. ................ ... ... 234
Important warnings .. .... .. .. .. .. . 232
Jump starting . ........... .. .. .. .. . 283
Locat ion . .. ............. .. .. .... . 232
low ... .. .. .. . ... ....... .. .. .. .. . 198
Replacing the battery ......... .. .. . 235
State of charge ............ ... .... . 198
Winter operation .......... ... .... . 232
Working on the battery ...... .. .... . 232
Before driving ............. .. .. .... . 126
Blended gasoline ........... ... .. .. . 214
Blower (automatic climate control) . . . . . . 71
Blower (climate control) . . . . . . . . . . . . . . . 68
Booster seats ............. .. .. .... .
180
Brake fluid
Changing the brake fluid ............
231
Checking the brake fluid lev el ... .. .. . 231
What is the correct brake fluid level? . . 231
What should I do if the brake fluid warn-
ing light comes on? ................
231
Brake system
Anti- lock braking system ............ .
19
Brake assist system ................ 193
Brake booster .... ............. .... 196
Brake fluid . ..... ................ . 231
Brake fluid specifications for refill and re-
placement .... ... .............. ..
231
Brake pads .. .. .. .......... ...... . 200
Electromechanical parking brake ... .. . 77
Fluid reservoir ... ................ . 231
How does moisture or road salt affect the
brakes? . .. .. .. .. ............. .. ..
195
Warning/indicator lights ............. 15
Worn brake pads symbol . . . . . . . . . . . . . 20
braking guard
Settings .. .. .. .. .. ........... .. .. .
91
Braking guard . .. .. ............. .. .. . 84
Messages . .. .. .. .. ..... ... ... .... . 91
Break-in period .... ................ . 200
Brake pads .... .. ................ . 200
Tires ..... .... ................... 200
Bulbs ...... .. .. .. .. ... .... .... .... 282
C
Californ ia Proposition 65 Warning . .. .. 223
Battery specific ... .......... .... .. 233
Capacities .. .... ............. ...... 290
Engine oil ..... .. .......... ...... . 224
Carbon parts
Cleaning . . . . . . . . . . . . . . . . . . . .
211, 212
Car carrier
Transpo rting your vehicle ...........
287
Care ...... .... ... .. .............. . 209
Cargo area ...... .. .. .............. . 132
Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
Catalytic converter . ............. .... 201
Center armrest
Cockpit ...........................
55
Central locking .... ............. .... . 33
Emergency locking ............. .... .
37
Certification .. .. .. ..... ........... . 295
Changing a wheel .. ................ . 272
Changing engine oil ... .. ... ..... .. .. 227