check engine AUDI A7 2015 Owner's Guide

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(D Note
- Do not disconnect the vehicle battery
when the ignition is on or when the en­
gine is running, otherwise, you will dam­
age electronic components in the electri­
cal system .
- If your vehicle is going to stand for a
long period of time without being driven,
protect the battery from "freezing", oth ­
erwise it will be damaged and will then
have to be replaced .
- When opening the doors, the windows
lower approximately 10 mm automati­
cally. This function is not available when
the battery is disconnected, which
means there is a risk that the door seal
or the window could be damaged.
Battery charging
Starting the engine requires a well charged
battery.
Fig. 198 Engine compa rtment : connectors for a charg­
er a nd jump star t cable s
Always read and heed all WARNINGS below
¢ .&. and
¢.&. in Working an the battery on
page 236.
"'Switch off the ignition and all electrical con­
sumers.
"'Make sure the area is well ventilated when
you charge the battery.
"'Open the engine hood
c::> page 225.
"'Open the red cover on the positive pole
<=>fig . 198.
"'Connect the charger connectors according to
the instructions to the
jump start bolts.
(Bolts under the red cover = "positive", Bolts
with hex head = "negative").
Checking and filling 237
"'Only now plug the mains lead for the charg­
i ng equipment into the wall outlet and turn
it on
c::> ,&. .
"'Make sure the charging rate is not over
30 amps/14.8 Volt.
"'When the battery is fully charged : Turn the
charging equipment off and remove the
mains lead from the wall outlet .
"'Now remove the clamps for the charging
equipment .
"' Close the red cover on the positive pole.
"'Close the hood ¢
page 226.
A discharged battery can
freeze at tempera­
tures of only 32 F
0 (0 °C). Allow a frozen bat­
tery to thaw completely before attempting to
charge it
c::> ,& . However, we recommend not
using a thawed battery again because the bat­
tery casing can be cracked due to ice forma­
tion and can leak battery acid.
Battery charging (Maximum charging rate
of 30 amps/14.8 Volt)
When charging at
low voltages (e .g. with a
trickle charger), the battery cables do not
have to be disconnected first. The battery
caps should
not be opened when charging a
battery .
It is not necessary to remove the battery from
the luggage compartment, and it is also not
necessary to disconnect the cables .
Fa st charging the battery (charging rate
above 14.8 Volts)
For technical reasons do not use a battery
charger that uses voltage greater than 14.8
Volts to charge your vehicle's battery .
A WARNING
Charging a battery can be dangerous.
-Always follow the operating instructions
provided by the battery charger manu­
facturer when charging your battery.
- Never charge a frozen battery.
It may ex­
plode because of gas trapped in the ice .
Allow a frozen battery to thaw out first.
- Do not reuse batteries which were fro­
zen. The battery housing may
have

238 Check ing and filling
cracked an d weake ned when the battery
froze.
- Charge the battery in a we ll ventilated
area. Keep away from open flame or elec­
trical spark. Do not smoke. Hydrogen gas
generated by the battery is explosive.
- To reduce the danger of explosion, never
connect or disconnect charger cables
wh ile the charger is operating.
- Fast charg ing a battery is dangerous and
should only be attempted by a compe­
tent technician w ith the proper equip­
ment.
- Battery acid that may spill during charg­
ing should be washed off w ith a solution
of warm water and baki ng soda to neu­
t rali ze the acid.
~ Note
Never use a fast charger as a booster to
start the engine. This will seriously dam­
age sensitive el ect ronic components, such
as co ntrol units, relays, rad io, etc., as we ll
as th e batte ry charge r.
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery.
I ntell igent energy management in your vehi­
cle is respo nsible for d ist ributing the electr i­
cal energy throughou t you r vehi cle
~ page 201. The inte lligen t energy manage­
ment system w ill keep the engine battery
charged better than vehicles without t his sys­
tem . To make sure the additional electrical en ­
ergy is available once again after you have
changed the battery, we recommend that you
install batteries of the same type and manu­
facture only (the same as those installed at
the t ime your vehicle was delivered). Specifi­
cations a re listed on the battery hous ing. You r
author ized de aler m ust code the battery in
the energy management system to enable yo u
to use the energy managemen t fu nctions co r­
rectly after replacing the battery. T
he new battery must have the same capacity,
vo ltage ( 12-volts), amperage, construction
and plug sealing.
When ins tall ing t he battery, make su re the ig­
nition and a ll elect rical consume rs are switch ­
ed off.
(D Note
Make sure the ven tilat ion hose on the side
of the ba ttery is connecte d, otherwise
fumes or batte ry acid can lea k out .
- Ve hicles with the Start-S top-System * are
equip ped with a spec ial cycle-proof AGM
battery . Install ing a d iffe rent type of
battery can cause problems in the vehi­
cle e lectr ica l system. Whe n replac ing the
vehicle battery, always install one w ith
t he same specifications as the o rigi na l
battery.
@) For the sake of the environment
Because of the prob lem of proper disposal
of a battery, we recomme nd your author­
i zed Audi dealer change the battery fo r
you. Batteri es contain sulfur ic acid and
l ead and must a lways be di spo sed o f prop­
erly in comp liance wi th all envi ronmental
regulations. Disposing of vehi cle batter ies
imprope rly is very dange rous to the envi­
r onment.
Windshield/headlight*
washer container
F ig . 1 99 Engine compartment: cover on the windshield
a n d headl ight * was her fl ui d reservo ir
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The washer fluid container is marked with the
symbol~ on its cap
¢fig . 199, ¢page 227,
fig. 193 .
.,. Before you check anything in the engine
compartment,
always read and heed all
WARNINGS ¢ A in Working in the engine
compartment on page 225 .
.,. Lift the filler cap tongue to add washer flu­
id. You can fill the container to the top .
.,. Press the cap back onto the filler neck after
filling the container .
You can f ind the reservoir
capacity in the table
in
¢page 292.
Clean water shou ld be used when filling up. If
possible, use soft water to prevent sca ling on
washer jets. Always add a glass cleaner solu­
tion (with frost protection in the winter).
CJ) Note
Do not mix engine coolant antifreeze or
any other additives to fill up the wind­
shield washer reservoir.
Checking and filling 239
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Fuses and bulbs
Fuses
Replacing fuses
Fuses that have blown will have metal strips
that have burned through.
Fig . 2 18 Dr iver side of the cockp it: fuse panel cove r
The fuses are located at the front left and
r igh t of the cockpit and behi nd the trim on
the right side of the luggage compartment .
.. Switch the ign ition and the affected electr i­
ca l equ ipment off .
.. Check the following table to see which fuse
belongs to the consume r .
.. Remove the cover
r:!;> fig. 218 or r:!;> page 221,
Opening the side trim .
.. To remove the purple plastic cl ip if necessa­
ry
ll, hold onto it at the small s ide and pull
it out of the fuse panel
r:!;> page 281,
fig. 219 .
.. Remove the clamp from the rea r side of the
fuse cover ¢
fig. 218 .
.. Remove the fuse using the cl amp and re­
pla ce the blown fuse w ith an identical new
one.
& WARNING , -
Do not repair f uses and never replace a
blown fuse w ith one that has a higher amp
rating. This can cause damage to the e lec­
trical system and a fire.
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~ 11 You can dis pose of the plastic clip after removing it.
Fu se s and bulb s 281
(D Note
If a new fuse burns out again after short ly
have you have insta lled it, have the electri ­
ca l system c hecked by yo ur authorized
A udi dealer .
{!) Tips
-The following table does not list fuse lo ­
cat ions that are not used .
- Some of the equipment items listed are
opt ional or only available on certa in
mode l configurations.
Driver side cockpit fuse assignment
Fi g. 21 9 Driver side cockpit : fuse pa nel w ith plastic
bracket
Fuse panel @ (blac k)
No . Equipment Amps
Switch panel, electromechanica l
1 parking brake, seat heating, 5
starting assist, control module
2 Au toma tic d imm ing in terior
5 rearview mir ro r, horn
3 Exhaust system (diesel engine) 10

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-When connecting jumper cables, make
sure that they cannot get caught in any
moving parts in the eng ine compart­
ment .
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS ¢
page 225.
(D Note
Improper hook-up of jumper cables can r u­
in the generator.
- Always connect POSITIVE( +) to POSI­
TIVE(+), and NEGATIVE(-) to NEGATIVE
( - ) gro und post of the battery manager
control unit .
- Check that all screw plugs on the battery
cells a re screwed in firmly . If not, tighten
pl ugs p rior to connecting clamp on nega ­
tive battery term inal.
- Please note that the procedure f or con­
nect ing a jump er cable as desc ribed
above appl ies spec ifically to the case of
you r vehi cle be ing jump started. When
you are giv ing a jump star t to an othe r ve­
hi cle, do
not connec t the negat ive (-) ca­
ble to the negat ive (-) terminal on the
discharged battery@¢
fig. 223. In ­
stead, securely connect the negative( -)
cable to e ithe r a solid metal component
that is firmly bolted to the engine block
or to the e ng ine block itse lf. If the bat­
te ry tha t is being charged does not vent
to the outside, escaping batte ry gas
could igni te and exp lode!
Emergency towing
with commercial tow truck
General hints
Your Audi requires special handling for tow ­
tng.
The follow ing information is to be used by
commercia l tow tr uck operators who know
h ow to ope rate thei r equipme nt safe ly.
Emergenc y situ ation s 287
-Ne ver tow your Audi. Towing will cau se
damage to the engine and tran smission.
- Never wrap the safety chain s or w inch ca­
ble s around the brake lines.
- To prevent unnece ssary damage , your Audi
must be transported with a flat bed tru ck.
- To load the vehicle on to the fl at bed , use
the towing loop found in the vehicle tools
a nd attach to the front or rear anchor age
¢ pag e 287 and ¢ page 288 .
_& WARNING
A vehicle being towed is not safe for pas ­
sengers. Never allow anyo ne to ride in a
vehicle be ing towed, for any reason.
Front towing loop
Only install the front towing loop when it is
needed.
Fig. 22 4 Front bu mpe r: cove r
Fig. 22 5 Front bu mpe r: in stall ing t he tow ing loop
-
The towing loop fits into the threaded hole lo ­
cated on the right s ide of the front bumpe r
and cove red by a sma ll cover when not in use.
.. Remove the tow ing loop from the vehicle
too l kit .

2 90 Emergency situations
heavy components such as the engine
b lock or transmiss io n are removed.
- W he n removing heavy components like
these, ancho r vehicle to ho ist o r add cor­
responding weig hts to ma inta in the cen ­
ter of g ravity . Othe rwise, the vehicle
might tilt or s lip off t he hoist, causing
ser ious p erson al injury.
(D Note
-Be awa re of the follow ing points befo re
li fting the vehicle:
- The vehicle should never be lifted or
jacked up from underneath the engine oil pan, the transmission housing, the
front or rear axle or the body side
membe rs. This could lead to ser ious
damage.
- To avoid damage to the underbody or
chassis frame , a rubber pad must be
i nserted between the floor jack and
the l ift points.
- Before driving over a workshop hoist,
check that the veh icle weight does not
exceed the permissible lifting capacity
of the hoist .
- Before driving over a workshop hoist,
ensure that there is sufficient clear­
ance between the hoist and low parts
of the vehicle.

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Technical data
Vehicle identification
F ig. 231 Veh ide Identificat ion Number (VlN) plate: lo ·
c ation on d river 's s ide das h pane l
XXXXX XX · X -XXXX XXX
~ fAllftlli. -llllll · NR. ~ W!ru -llllll -NO.
xx
XXXX XXXX XX X XXXXXXXX
XXX XXX
IYP /TYPE
XX XXXXXXX XX X X XX
XXX KW XXX
®i ~W.::·f :l~~ XXXX XXX XXX
©+ ::rw= xxxx I xxxx XXX I xx
M. · AUSSt I IJ'IIDIIS
~--
EOA 7D 5 4UB 6XM SSG SRW
2E H JOZ 1LB lA S 1BA
3FC SMU 7X l
FD A 9G3 OG7 OYH OJF
TL6 3 KA 8EH UlA X98 027
lXW 803 908 824 D2D
7T6 CV7 7KO 4X3 2K2
3L4 4KC 3YO 413 502
1S A 7GB 01A 4GO
XX. X XX X XX X XXXX
Fig. 232
The vehicle identification label - inside the
luggage co mpartment
Vehicle Identification Number (VlN)
The Veh icle Identification Number is located
in different p laces :
- under the w indshield on the driver's side
¢fig. 231.
- in the MMI: Select: Function button ICAR ! >
(Car)* systems> Servicing & checks > VIN
number.
-on the vehicle identification label.
Techni cal data 291
Vehicle identification label
The vehicle identification label is located in
the luggage compartment in the spare wheel
well.
T he label¢
fig. 232 shows the following vehi­
cle data :
(D Vehicle Identificat ion Number (VIN)
@ Vehicle type, engine output, transmission
® Engine and transmission code
© Paint number and interior
® Optional equipment numbers
The information of the veh icle identification
label can also be found in your Warranty
&
Maintenance booklet .
Safety compliance sticker
The safety compliance sticker is your assur­
ance that your new veh icle complies with all
applicable Federal Motor Vehicle Safety
Standards which were in effect at the time the
vehicle was manufactured . You can find this
sticker on the door jamb on the driver's side. It shows the month and year of production
and the vehicle ident ification number of your
vehicle (perforation) as well as the Gross Vehi­
cle Weight Rating (GVWR) and the Gross Axle
Weight Rating (GAWR) .
High voltage warning label
The high voltage warning label is located in
the engine compartment next to the engine hood release. The spark ignition system com­
plies with the Canadian standard ICES-002 .
Weights
Gross Vehicle Weight Rating
The Gross Vehicle Weight Rating (GVWR), and
the Gross Axle Weight Rating (GAWR) for
front and rear are listed on a sticker on the
door jamb on the driver's s ide.
The Gross Vehicle Weight Rating includes the
weight of the basic vehicle plus full fuel tank,
oil and coolant, plus maximum load, which in ­
cludes passenger we ight (150 lbs/68 kg per
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complexity of today's automobi les, have
steadi ly reduced the scope of maintenance
and repairs which can be carried out by vehicle
owners.
Also, safe ty and e nvir onm en tal con­
cerns p lace very strict limits on the na ture of
repairs and adjustments to engine and trans ­
miss io n pa rts which an owner can perform .
Maintenance, adjustments and repa irs usua lly
require special tools, testing dev ices and oth­
er equipment avai lab le to specially trained
workshop personnel in order to assure prope r
performance, reliab ility and safety of the vehi­
cle and its many systems .
Improper ma intenance, adjustments and re ­
pa irs can impair the operation and reliability
of your vehicle and even void your vehicle war­ ranty. The refo re, p roof of servici ng in accord­
ance w ith the maintenance sched ule may be a
condition for upholding a poss ible war ranty
claim made within the warranty period.
Above all, operational safety can be adversely
affected, crea ting unnecessary risks for you
and your passengers.
If in doubt about any servicing, have it done
by your authori zed Audi dealer or any other
properly equipped and q ualified workshop .
We strong ly urge you to give you r a uthorized
Audi dealer the opportunity to perform all
schedu led maintenance and necessary repairs .
Your dea ler has the facilities, or iginal parts
and trained spec ialists to keep your vehicle
running properly .
Performing limit ed m aintenance you rself
The fo llowing pages describe a limited num­
ber of procedu res which can be performed on
your vehicle with ordinary too ls, should the
need arise and trained personnel be unavaila­
b le. Before performing any of these proce­
dures, always tho roughly read a ll of the app li­
cable text and carefully follow the instruc­
tions given . Always rigorously obse rve the
WARNINGS provided .
Before you check anything in th e engine
compartment, a lway s re ad and heed all
Con sumer In formation 295
WARNINGS ¢ & and ¢ & in Working in the
engine comportment on page 225 .
A WARNING
-Ser ious personal injury may occur as a re­
sult of improperly performed mainte­ nance, adjustments or repa irs.
-Always be extremely care ful when work­
ing on the vehicle. Always follow com­
mon ly accepted safety pract ices and gen­
era l common sense . Never r isk personal
lnJU ry .
- Do not attempt any of the ma intenance ,
checks or repairs descr ibed on the fol­
lowing pages if you are not fully fam ilia r
wit h these or othe r pro cedures with re­
spect to t he veh icle, or are uncerta in how
to p roceed .
- Do not do any work without the proper
too ls and equipment. Have the necessary
work done by your authorized A udi deal ­
er or another proper ly equipped and
qualified workshop .
- The engine compar tment o f any motor
veh icle is a potentially hazardous area.
Never reach into the area around or
touch the rad iator fan. It is temperature
contro lled and can switch on suddenly -
even when the engine is
off . The radiator
fan switches on automat ica lly when the
coo lant reaches a certai n tempe rature
and will cont inue to run until the coo lan t
temper ature drops.
- Always sw itch
off the ignition before any­
one gets under the vehicle.
- Always support your veh icle with safety
stands if it is necessary to work under­
neath the vehicle . The j ack s upplied with
the vehicle is not adequate for this pur­
pose and cou ld collapse causing serio us
personal i njury .
- I f you must work unde rneath the vehicle
with the wheels on t he g round , a lways
make sure the vehicle is on leve l ground,
that the wheels are a lways securely
blocked and that the engine cannot be
started.
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29 6 Con sum er Inf ormation
-Always make sure the transmission se­
lector lever (automatic transmiss ion) is
in P (Park position) and the park brake is
applied .
@) For the sake of the environment
-Changing the engine settings wi ll ad­
versely affect em iss ion levels. This is det­
rimental to the environment and increas­
es fuel consumption .
- Always observe env ironmental regula­
tions when dispos ing of old engine oil,
used brake fluid, dirty engine coolant,
spent batteries or worn out tires.
- Undeployed airbag modules and preten­
s ioners might be classified as Perchlo ­
rate Material -spec ial handling may ap­
ply, see www.dtsc.ca .gov/hazardous­
waste/perch lorate . When the veh icle or
parts of the restraint system including
airbag modules safety belts wit h preten ­
sioners are scrapped, all applicable laws
and regulations must be observed. Your
authori zed Aud i dea ler is familiar with
these requirements and we recommend
that you have your dealer perform this
serv ice for you .
Additional accessories,
modifications and
parts replacement
Additional accessories and parts
replacement
Always consult an authorized Audi dealer be­
fore purchasing accessories.
Your veh icle incorporates the latest safety de­
sig n featu res ensu ring a high standard of ac­
tive and passive safety .
This safety could be compromised by non-ap­ proved changes to the veh icle. For this reason ,
if pa rts have to be replaced , please observe
the following points when install ing addition­
a l accessories: Approved Audi accessories and genuine Aud
i
parts are available from authorized A udi deal­
ers.
T hese dea le rs a lso have the necessary facili­
ties, tools and trained specialists to install the parts and acc essories proper ly .
A WARNING
-Using the wrong spare parts or using non-
approved accessories can cause damage to
the veh icle and ser ious persona l injury.
- Use on ly accessories express ly approved
by Audi and gen uine Audi spare parts
- These parts and accessories have been
specia lly designed to be used on yo ur ve­
h icle .
- Never install accessor ies such as tele­
phone crad les or beverage ho lders on a ir­
bag covers or within the airbag deploy­
ment zones . Do ing so will increase the
risk of injury if a irbags are triggered in an
accident!
- Before you check anything in the engine
compa rtment, always read and heed a ll
WARNI NGS
9 page 225 .
(D Note
-If items other than genu ine Audi spare
parts, add-on equipment and accessory
items are used or if repair work is not
performed accord ing to specified meth­
ods, this c an resu lt in seve re damage to
your vehicle's eng ine and body (such as
corrosion) and adversely affect yo ur vehi ­
cle's warranty .
- If emergency repairs must be performed
elsewhere, have the vehicle examined by
an authorized A udi dealer as soon as
possible .
- The manufacturer cannot be held liable
for damage wh ich occ urs due to failure
to comply with these stipu lations.

300 Index
AUTO automatic climat e control .. .. ... ... ..
73
Automatic headlights ....... .. .... .. 44
climate control . . . . . . . . . . . . . . . . . . . . . 70
Auto Lock . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3
Automatic belt retractor .. ... ..... .. .
141
Automatic climate control
Air vents . .... ........... .... .... ..
7 3
Automatic recirculation .... .. .. .. .. . . 74
Opera tion . . . . . . . . . . . . . . . . . . . . . . . . . 72
Setup . .. .. ................ ... .. .. 74
synchron izing .... ......... ... .. .. .. 73
Automatic Shift Lock (ASL) .... .. .. .. . 110
Automatic transmission ..... .. .. .. .. . 109
Automatic Shift Lock (ASL) .......... 110
Driving . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Emergency mode . . . . . . . . . . . . . . . . . . 114
Emergency release .......... .. .... . 115
Kick-down ............... .. .. .... . 113
Manual shift program ..... .... .... . 113
Selector lever . . . . . . . . . . . . . . . . . . . . . 109
Automatic wipers .................. .. 48
Auto Safety Hotline ........ .. .. .. .. . 136
Ave rage consumption ....... .. .. .. .. . . 25
Average speed . . . . . . . . . . . . . . . . . . . . . . .
25
Avoid damaging the vehicle .. .. .. .. .. . 204
B
Brake fluid
Changing the brake fluid ............
234
Checking the brake fluid level ........ 234
What is the correct brake fluid level? .. 234
What should I do if the brake fluid warn-
ing light comes on? ................
234
Brake system
Anti- lock braking system . . . . . . . . . . . . .
19
Brake assist system . ....... .... .. .. 195
Brake booster .. ... .............. .. 199
Brake fluid .. .. .. .......... ...... . 234
Brake fluid specifications for refill and re-
placement ...... ................ .
234
Brake pads .... .. ............. .... 203
Electromechanical parking brake ... .. . 79
Fluid reservoir ... ................ . 234
How does moisture or road salt affect the
brakes? . . . . . . . . . . . . . . . . . . . . . . . . . .
198
Warning/indicator lights ........ .. .. . 15
Worn brake pads symbol . . . . . . . . . . . . . 20
braking guard
Settings .. .... .. .. .............. ..
93
Brak ing guard . .. .. .......... ...... .. 86
Messages ... .. .. .. ....... .... .... . 93
Break-in period .. .. ............. .... 203
Brake pads .. ... . ... ... .... ... .. .. 203
Tires ........ ... .. .............. . 203
Bulbs .......... .. .. .............. . 284
Bag hooks . . . . . . . . . . . . . . . . . . . . . . . . . . 67 C
Battery ..... ................ ..... .
Charging ................... ..... .
Important warnings ...... .. .. .. .. .
Jump starting . .... ....... .. .. .. .. .
Location
. .. .... ........... .. .... .
low ..... .. ................ ... ' . .
Replacing the battery ..... .. .. .. .. .
State of charge ........... .. .. .. .. .
w· t · 1n er operation ......... .... .... .
Working on the battery .... .. .. .... .
Before driving .............. ... .. .. .
235
237
235
285
235
201
238
201
235
235
128
Blended gasoline . . . . . . . . . . . . . . . . . . . 217
Blower (automatic climate control) . . . . . . 73
Blower (climate con trol) . . . . . . . . . . . . . . . 70
Booster seats .............. ... .... . 182
California Proposition 65 Warning ..... 226
Battery specific .. ............. .... 236
Capacities .. .. .. .. ............. .. .. 292
Engine oil ..... .. ............. .... 227
Carbon par ts
Cleaning . . . . . . . . . . . . . . . . . . . .
214,215
Car carrier
Transporting your vehicle ....... ....
289
Care ..... .. .. .. .. .... ......... .... 212
Cargo area ...... .. .. ... ........... . 134
Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Catalytic converter . ... .. ... ..... .. .. 204
Center armrest
Cockpit . .. .. .. .. ............. .. .. .
56
Central locking .... ............. ..... 33
Emergency locking ................ ..
37