2014 AUDI RS7 SPORTBACK check engine light

fig. 188. With a cold engine, the coolant
lev el should be between the "min" and
"max" markings. When the engine is warm,
the level may be slightly above the "max"
marking .
The location of the coolant expansion tank
can be seen in the engine compartment illus ­
t ration
<=> page 215.
To obtain an accurate reading , the engine
must be switched
off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coolant level is too low, the warning
light in the Auto-Check System<=>
page 15 will
illuminate until you add coolant and the level
has been restored to normal. Even though
there is an electric coolant level sensor, we
still recommend you check the coolant level
from time to time .
Coolant loss
Coolant loss may indicate a leak in the cooling
system. In the event of coolant loss, the cool­
ing system should be inspected immediately
by your authorized Audi dealer. It is not
enough merely to add coolant .
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheating.
&_ WARNING
-
The cooling system is under pressure and
can get very hot. Reduce the risk of scald­
ing from hot coolant by following these
steps.
- Turn
off the engine and allow it to cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering the
cap with a large, thick rag.
- Turn the cap slowly and very carefully in
a counter-clockwise direction while ap ­
plying light, downward pressure on the
top of the cap.
Checking and filling 221
-To avoid being burned, do not spill anti­
freeze or coolant on the exhaust system
or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­
ant can catch fire .
(D Note
Do not add any type of radiator leak seal­
ant to your vehicle 's engine coolant. Add-
ing radiator repair fluid may adversely af­
fect the function and performance of your
cooling system and could result in damage
not covered by your New Vehicle Limited
Warranty.
Adding coolant
Be very careful when adding engine coolant.
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS <=>.&. in Working in the engine compart­
ment on page 213.
"'Turn off the engine.
"'Let the engine cool down .
"' Place a thick rag over the coolant expansion
tank
<=> page 220, fig. 191 and carefully
twist the cap counter-clockwise <=>_& .
"'Add coolant mixed in the correct ratio
<=> page 220, Coolant.
"'Twist the cap on again tightly.
Replacement engine coolant must conform to
exact specifications <=>
page 220, Coolant.
We recommend using only coolant addi-
tive G12++, G13 or in an emergency G12+. Do
not use a different additive. In an emergency
use plain water until you can get the correct
additive and can restore the correct ratio. This
should be done as soon as possible.
If you have lost a considerable amount of
coolant , then you should add cold antifreeze
and cold water only when the engine is cold.
Always use
new engine coolant when refilling.
Do not fill coolant above the "MAX" mark. Ex -
cess coolant will be forced out through the ..,.
•
•

222 Checking and filling
pressure relief valve in the cap when the en ­
gine becomes hot.
.&_ WARNING
- The cooling system is under pressure and
can get
very hot. Reduce the risk of
sca lding from hot coolant by following
these steps .
- Turn off the eng ine and a llow it to cool
down.
- Protect your face, hands and arms from
escap ing flu id and steam by cover ing
the cap with a large , thick rag .
- Tu rn the cap slowly and
very carefully
in a counter -clockwise direction while
applying light, downward pressure on
the top of the cap .
- To avo id being burned, do not sp ill an­
tifreeze or coolant on the exhaust sys­
tem or hot engine parts. Under certain
conditions, the ethylene glycol in en­
g ine coolant can catch fire.
- Antifreeze is poisonous. Always store an­
t ifreeze in its original container and well
out of the reach of children.
- If you drain the coolant, it must be
caught and safely stored in a proper con­
ta iner clearly marked "poison".
(D Note
- Coolant po llutes the environment and
could cause an engine fire. Excess coo l­
ant will be forced out through the pres­
sure relief valve i n the cap when the en­
gine becomes hot .
- If, in an emergency, only water can be
added, the correct ratio between wate r
and antifreeze ~
page 220 must be re­
stored as soon as possib le.
@) For the sake of the environment
Dra ined coolant should not be reused . Al­
ways dispose of used coolant while
observ­
ing all environmental regulations .
Radiator fan
The radiator fan switches on automatically by
itself .
An auxilia ry electric r adiator fan switches on
and off depending on coolan t tempera ture
and other vehicle operat ing condit ions .
After you switch the engine off, the aux iliary
fan can continue running for up to 10 minutes
- even w ith the ignition off . It can even swi tch
on aga in later by itself
c> .&. , if
- the temperature of the engine coo lant rises
due to the heat build-up from the engine in
the engine compartmen t, or
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
.&_ WARNING ,_
- To reduce the risk of personal injury nev­
er touch the radiator fan .
- The auxiliary electric fan is temperature
controlled and can sw itch on suddenly
even when the engine is not running .
- The auxiliary radiator fan sw itches on au­
tomatically when the engine coo lant
reac hes a certain t emperature and wi ll
continue to run until the coolant temper­
a ture drops.
Brake fluid
Checking brake fluid level
Fi g. 19 2 Engin e compart ment: cover on t he bra ke fluid
re servoir
Ill>

Before you check anything in the engine com­
partment,
always r ead and heed all W ARN­
ING S ~ A in Working in the engine compart­
ment on page 213.
.. Read the brake fluid level from the brake
fluid reservoir ¢
fig. 192, ~ page 215,
fig . 188.
The brake fluid level must be be ­
tween the "MIN" and "MAX" markings.
The location of the brake fl uid reservoir can be
seen in the engine compartment illustration
¢page 215.
The fluid level may drop slightly after some
time due to the automatic adjustment of the brake pads . This is not cause for alarm .
If the brake fluid level falls considerably be­
l ow the "MIN" mark, the brake wa rning/indi ­
cator light
1111 (U .S . models)/ . (Canadian
models) will come on
~ page 14. Do not con­
tinue to operate the vehicle. The comp lete
brake system shou ld be thoroughly checked
by an authorized Audi dealer or other quali­
f ied fac ility and the cause corrected . If the
b rake fluid level is too low, the brake warn ing/
i ndicator light w ill illuminate . Contact an au­
thor ized Audi dealer
imm ediately .
Changing brake fluid
Have the brake fluid changed by an experi­
enced technician .
Brake fluid absorbs moisture from the a ir . If
the water content in the brake fluid is too
hi gh, cor rosion in the brake system may result
after a per iod of t ime . The bo iling po int of the
b rake fluid w ill also decrease considerab ly and
decrease braking performance.
Therefore, the brake flu id must be changed
ev ery two ye ars. A lways use new b rake fluid
which confo rms to Federal Motor Vehicle
Standard "FMVSS
116 DO T 4".
The brake flu id rese rvoi r ca n be difficult to
r each, therefo re , we recommend that yo u
h ave the brake fl uid changed by you r autho r­
i zed
Audi de aler . Your dea le r has the correct
Checkin g and fillin g 223
tools, the right brake fl uid and the know -how
to do this for you .
A WARNING
-Brake flu id is poisonous. It must be stor­
ed only in the closed or iginal container
out of the reach of children!
- Brake failure can resu lt from o ld or inap­
propriate brake f lu id. Observe these pre­
cautions:
- Use only b rake fluid tha t meets SA E
spe cificat ion
J 17 03 and conforms to
Federa l Moto r Ve hicl e Standard
116.
Always check with your authorized Audi
dealer to make sure yo u are using the
correct brake fluid. The correct type of
brake f luid is also ind icated on the
brake f luid reservoir .
- The brake fluid must be new. Heavy use
of the brakes ca n cause a vapor lock if
the brake fluid is left i n the system too
long. This can se riously affect the effi­
c iency of the b rakes as well as your
safety , T his could result in an accident.
(!) Note
Brake fluid will damage the paint of your
vehicle.
@) For the sake of the environment
Because of the prob lem of proper disposal
of brake fluid as well as the spec ial too ls
r equired and the necessary expertise, we
r ecommend that you have th e brake flu id
changed by you r autho rized Aud i dea le r.
Battery
General information
Under normal operating cond itions, the bat­
tery in your Audi does not need any ma inte­
nance . With
high outside temperatu res or
lo ng da ily drives we recommend that you have
the e lectrolyte leve l che cked by a se rv ice fa­
c il ity. The ele ctroly te leve l should also be
chec ked each t ime the battery is cha rged
~ page 226 . Iii>
•
•

-Always wear eye protection. Do not let
battery acid or any lead particles get on
your skin or clothing. Shield your eyes .
Explosive gases can cause blindness or
other injury.
- Battery acid contains sulfuric acid . Sulfu­
ric acid can cause blindness and severe
burns.
- Always wear gloves and eye protection.
Do not tilt the battery because acid
could leak out of the ventilation open­
ings.
- If you get battery acid in your eyes or
on your skin, immediately rinse with
cold water for several minutes and get
medical attention .
- If you should ingest any battery acid,
seek medical attention immediately.
- Do not expose the battery to an open
flame, electric sparks or an open light.
- Do not smoke.
- Do not interchange the positive and neg -
ative cables .
= When working on the battery, be sure
not to short-circuit the terminals with
tools or other metal objects. This would cause the battery to heat up very quickly,
which could lead to damage or explosion and personal injury.
- When a battery is charged, it produces
hydrogen gas which is explosive and
could cause personal injury .
- Always keep the battery well out of the
reach of children.
- Before work is done on the electrical sys­
tem, disconnect the negative ground ca­ ble .
- Before performing any work on the elec­
trical system, switch off the engine and
ignition as well as any electrical equip ­
ment. The negative cable on the battery
must be disconnected . If you are just go­
ing to replace a light bulb, then it is
enough to switch off the lights.
- Before disconnecting the battery, switch
off the anti-theft alarm system! Other­
wise you will set off the alarm.
Checking and filling 225
-When disconnecting the battery, first
disconnect the negative cable and then
the positive cable.
- Before reconnecting the battery, make
sure all electrical consumers are switch­
ed off. Reconnect the positive cable first
and then the negative cable . Never inter ­
change the cables -this could start a fire!
- Never charge a frozen or a thawed-out
battery . It could explode! If a battery has
frozen , then it must be replaced . A dis­
charged battery can freeze over at 32 °F
(0 °C) .
-Make sure the vent hose is always attach­
ed to the opening on the side of the bat­
tery .
- Never use batteries which are damaged.
There is the danger of an explosion! Al­
ways replace a damaged battery.
&_ WARNING
California Proposition 65 Warning:
- Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive problems. Wash hands after han­ dling.
(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 e lectri­
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 sea l
or the window could be damaged.
•
•

CD Note
Never use a fast charger as a booster to
start the engine. This will seriously dam­
age sensitive electronic components, such
as control units, relays, radio, etc., as well
as the battery charger .
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery .
Intelligent energy management in your vehi­
cle is respons ible for distributing the electri­
cal energy throughout your vehicle
c::> page 195. The intelligent energy manage­
ment system w ill keep the engine battery
charged bette r than vehicles w ithout t his sys­
tem. To make sure the additional electr ica l 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 time your vehicle was delivered). Specifi­
cations are listed on the battery hous ing. Your
author ized dealer must code the battery in
the energy management system to enable you
to use the energy management functions cor­
rectly after replac ing the battery.
The new battery must have the same capacity,
voltage (12-volts), amperage, const ruct ion
and p lug sealing.
When installing the battery, make sure the ig­
n ition and all electr ical consumers are sw itch­
ed off .
CD Note
Make sure the ventilation hose on the s ide
of the battery is connected, otherwise
fumes or battery ac id can leak out.
@ For the sake of the environment
Because of the problem of proper d isposal
of a battery, we recommend your author­
ized Aud i dealer change the battery for
you . Batteries contain su lfuric ac id and
Checkin g and fillin g 22 7
lead and must always be disposed o f prop­
erly in compliance with a ll environmental
regulations. Disposing of vehicle batter ies
i mproperly is very dangerous to the envi­
ronment .
Windshield/headlight*
washer container
Fig. 194 Engine compart ment: cover on th e windshield
and headl ig ht* washer fluid reservo ir
The washer fluid conta iner is marked w ith the
symbol~ on its cap
c::> fig. 194, c::>page 215,
fig. 188.
.,. Before you check anything in the engine
compartment, always read and heed all
WARNINGS c::> &. in Working in the engine
compartment on page 213.
.. Lift the filler cap tongue to add washer flu­
id. You can f ill the container to the top .
.. Press the cap back onto the fi ller neck after
filling the container.
You can find the reservoir
capacity in the table
in
c::> page 271.
Clean water should be used when filling up. If
possible, use soft water to prevent scaling on
washer jets. Always add a g lass cleaner solu­
tion (with frost protection in the winter).
([) Note
Do not mix engine coolant antifreeze or
any other additives to fill up the wind­
shield washer reservoir .
•
•

264 Emergency situations
Emergency situations
General
This chapter is intended for trained emer­
gency crews and working personnel who
have the necessary tools and equipment to
perform these ope rations.
Starting by pushing or
towing
Q;) Note
Vehicles w ith an automatic transmission
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 should fail to start because of a
discharged or weak battery, the battery can be
connected to the battery of
another veh icle,
using a
pair of jumpe r cables to start the en­
g ine .
Jumper cables
Use only jumper cables of sufficiently large
cross section to carry the starter current safe­
ly. Refer to the manufacturer's specif ications.
Use only jumper cables with
insulated termi­
na l clamps which are distinctly marked:
plus(+) cable in most cases colored red
minu s(-) cable
in most cases colored black .
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal
inju ry. Follow the instructions below for
safe handling of your veh icle's battery.
- Always shield you r eyes and avoid lean­
ing over the battery whenever possible.
- A discharged battery can freeze at tem­
peratures just be low 32 °F (0 °C). Before connecting a
jumper cable, you must
thaw the frozen battery complete ly, oth­
erwise it could explode.
- Do not allow battery acid to contact eyes
or skin. Flush any contacted area with
water immediately.
- Improper use of a booster battery to start a vehicle may cause an explosion.
- Vehicle batteries generate explosive gas­
es. Keep sparks, flame and lighted ciga­
rettes away from batteries.
- Do not try to jump start any vehicle with a low acid level in the battery.
- The vo ltage of the booster battery must
also have a 12-volt rating. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged bat­
tery . Use of batteries of d ifferent voltage
or substantially different "Ah" rating
may cause an exp losion and personal in­
jury.
- Never charge a frozen batte ry. Gas trap­
ped in the ice may cause an explosion.
- Never charge or use a battery that has
been frozen. The battery case may have
be weakened.
- Use of batter ies of different voltage or
substantially different capacity (Ah) rat­
ing may cause an exp losion and injury.
The capacity (Ah) of the booster battery
should not be lower than that of the dis ­
charged battery.
- Before you check anything in the engine
compartment, always read and heed a ll
WARNINGS¢
page 213.
(D Note
- App lying a higher voltage booster bat­
tery will cause expensive damage to sen­
sitive electronic components, such as
control units, relays, radio, etc.
- Th ere must be no electrical contact be­
tween the vehicles as otherwise current cou ld already start to f low as soon as the
positive(+) terminals are connected. .,.

278 Index
Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
synchronizing ............. ... .... .. 71
Automatic Shift Lock (ASL) .......... . 105
Automatic transmission . . . . . . . . . . . . . . 104
Automatic Shift Lock (ASL) . .. .. .. .. . 105
Driving .... .. ........ .... ... .. .. . 106
Emergency mode ........... .. .. ... 108
E mergency release ........ .. .. .. .. . 109
Kick -down ............... .... .... . 108
Manual shift program ......... .. .. . 108
Selector lever ............. ... .... . 104
Automatic wipers . .. ........ ... .. .. .. 48
Auto Safety Hotline . . . . . . . . . . . . . . . . . 131
Average consumption ....... .. .. .. .. . . 24
Average speed . . . . . . . . . . . . . . . . . . . . . . . 24
Avoid damaging the vehicle ........ .. . 199
B
Bag hooks . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Battery ... .. .. .. ............ ... .. . 223
Charging ... .. .. .. .......... ... .. . 226
I mportant warnings ...... .. .. .. .. . 224
Jump starting .. ........ .. .. .. .. .. . 264
L ocat ion ..... ........... ........ . 224
l ow ... .... ................ ..... . 195
Rep lacing the battery ...... ... .. .. . 227
State of charge ............ ... .. .. . 195
Winter operation ......... .... .... . 223
Working on the battery .... .. .. .. .. . 224
Before driving . . . . . . . . . . . . . . . . . . . . . . 123
Blended gasoline .... ...... .. .. .. .. . 208
Blower (automatic climate control) . . . . . . 71
Boost display . . . . . . . . . . . . . . . . . . . . . . . . 28
Booster seats ... .... ...... .. .. .. .. . 177
Boost pressure indicator .......... .. .. 28
Brake fluid Changing the brake fl uid ... .... .. .. . 223
Check ing the brake fluid level . .. .. .. . 222
What is the correct brake fluid leve l? .. 222
What should I do if the brake fluid warn-
ing light comes on? ........ .... ... . 222
Brake system Anti-lock braking system ..... .. ...... 19
Brake assist system ........ ... .. .. . 189
Brake booster ............. ... .... . 193
Brake fluid ............... ... .... . 222 Brake fluid specifications for refill and re­
placement
. . . . . . . . . . . . . . . . . . . . . . . 223
Brake light defective . . . . . . . . . . . . . . . . 21
Brake pads ...... ............. .... 198
Electromechanical parking brake . .... . 77
Fluid reservoir . .. ................ . 222
How does moisture or road salt affect the
brakes? ....... .. .. ........ ... ... . 193
Warning/ind icator lights ...... .. .. .. . 14
Worn b rake pads symbo l ........ .. .. . 20
braking guard
Settings . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Braking guard ..... ............. ... .. 81
Messages . .. .. .. .. ........... .... . 88
Break-in per iod .... ............. .... 198
Brake pads .... .. ................ . 198
Tires .... ..... .. .. .............. . 198
Bu lbs .. .. .. .. .. .. .. .. ...... ... .. .. 263
C
California Proposition 65 Warn ing .... . 214
Battery specific .. ..... ......... ... 225
Capacities .. .... .. ................. 271
Engine oil ....... ............. .... 215
Carbon parts Cleaning . . . . . . . . . . . . . . . . . . . . 205, 206
Car carrier Transporting your vehicle ....... .. .. 268
Care ... .. .. .. .. .. ............. .. .. 203
Cargo area . ..... .. ............. ... . 129
Cargo net . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Catalytic converter .............. .. .. 199
Center armrest Cockpit . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Central locking .. .. .......... ...... .. 34
Emergency locking ... ....... ...... .. 38
Certification ..................... .. 276
Changi ng a wheel .. ... .......... .. .. 254
Changing engine oil .......... ...... . 219
Checking Engine coolant level ............ .... 220
Tire pressure ... .. ... .......... .. .. 234

280 Index
Defrosting (windows)
automatic climate control . ... ... ... .. 71
Determining correct load limit ... .... . 236
Dimensions ................. .. .... . 271
Dimming the rearview mirror . ..... .. .. 51
Displays Cleaning . .. .......... ...... ... .. . 205
Distance . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Door/rear lid warning . . . . . . . . . . . . . . . . . 23
Doors Power child safety lock ........ .. .... 40
Driver information system Boost ... .. ............. .. .. .. ... . 28
CD/radio display . . . . . . . . . . . . . . . . . . . . 23
Door/rear lid warning . . . . . . . . . . . . . . . 23
Efficiency program . ........... .. .. .. 25
En gin e oi l tempe rature display .. .. .. . . 28
E xterior tempe rature display . .. .. .. . . 23
On -board computer . . . . . . . . . . . . . . . . . 24
Shifting indicator . . . . . . . . . . . . . . . . . . . 28
Driver seating position . . . . . . . . . . . . . . . 124
drive select ................. .. .... .. 96
adaptive air suspension/sport ... ...... 96
Adaptive dampers . . . . . . . . . . . . . . . . . . 96
Curve light . . . . . . . . . . . . . . . . . . . . . . . . 96
Engine sound .. .... ...... .. .. .. .. .. 96
Safety belt tensioner . . . . . . . . . . . . . . . . 96
Sport different ial . . . . . . . . . . . . . . . . . . . 96
Driving safely . . . . . . . . . . . . . . . . . . . . . . 123
Driving through water .......... .. ... 199
Driving time ............... ... .. .. .. 24
Duplicate key ............... .. .... .. 32
Dust filter
r e fer to Pollutant filter . . . . . . . . . . . . . . 69
Dynamic steering .......... .. .. .. .. . 194
E
Easy entry feature . . . . . . . . . . . . . . . . . . . . 7 4
Efficiency program . . . . . . . . . . . . . . . . . . . 25
Fu el economy messages . . . . . . . . . . . . . 25
Other equipment . . . . . . . . . . . . . . . . . . . 25
E lectrical accessories (sockets) . . . . . . . . . 60
Electro-mechanical power assist .. .. .. . 194
Electromechanical parking brake
Emergency braking . . . . . . . . . . . . . . . . . 78
Operation . . . . . . . . . . . . . . . . . . . . . . . . . 77 Parking ...
.... .. ............. ..... 78
Releasing and closing ............... 77
Starting assist . . . . . . . . . . . . . . . . . . . . . 78
Starting from rest . . . . . . . . . . . . . . . . . . 78
Warning/indicator lights ........ .... . 15
Electronic differential lock
Warning/indicator lights ............ . 18
Electronic differential lock (ED L) . . . . . . . 189
Warning/indicator lights ............ . 19
Elec tronic immobilizer . . . . . . . . . . . . 26, 33
E lectronic power control (EPC)
warning/indicator light .............. 20
Electronic Stabilization Control (ESC) . .. 189
Warning/indicator lights .......... .. . 18
Emergency actuation Doors ...... .. .. .. ...... ..... .. .. . 38
Power sunroof . .. ................ .. 43
Rear lid ....... .. ............. .... . 40
Emergency braking .............. .... . 78
Emergency flasher . . . . . . . . . . . . . . . . . . . 45
Warning/indicator lights ............. 22
Emergency release
Selector lever .... ............. .... 109
Emergency starting ............. ....
264
Emergency towing ................. . 266
Emergency warning triangle .......... 250
Energy management ............ .... 195
Engine Compartment .... ............. .... 215
Coolant ....... .. .. ............ ... 220
starting ....... .. .. .............. .. 74
Starting with jumper cables ....... .. 264
Stopping .. .... .. ............. .... . 75
Engine compartment ................ 215 Closing the hood .............. .... 214
Opening the hood ................ . 213
Safety instructions ............. .... 213
Working in the engine compartment .. 213
Engine coolant .... ................ . 220
Adding coolant ... ................ . 221
Checking the engine coo lant level ..... 220
Expansion tank ... ............. .. .. 220
Malfunction symbol . . . . . . . . . . . . . . . . . 15
Radiator fan ...... .............. .. 222
Temperature gauge ......... ...... .. 10