2020 AUDI R8 COUPE check engine light

4S1012721BA
Quick access

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OGOOOOOOOOOD
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Door handle
Central locking switch ...........
Power windows ................
Power exterior mirror adjustment .
Air vent with thumbwheel
Lever for:
—Turn signals and high beams ....
— High beam assistant ..........
Multifunction steering wheel with:
— Horn he
— Driver's airbag ...............
— Buttons for the virtual instrument
cluster, including the driver infor-
mation system, audio/video, tele-
phone, navigation and voice rec-
OQNITION SYSTEM woe ss sees vs ees
— Shift paddles ................
—[START ENGINE STOP] button ...


— Sound button for exhaust door
control
— Audi drive select button ........
— Performance mode button .....
Audi virtual cockpit (instrument
GCLUSTEL): « woe oo wane ¢ & wees + eee
Windshield washer system lever ..
Starting the engine if there is a
malfunction ................00.
Adjustable steering column ......
Cruise controllever .............
Instrument illumination .........
Headlight control switch ........
Luggage compartment release ...
Controls for climate control system .
Lockable glove compartment
Front passenger's airbag ........
Seat heating ...........2.5e0e
Depending on equipment, center
console with:
— Multimedia compartment for cell
PHONE wn < o memes s 2 eee y eer es
— Audi phone box ...............
Depending on equipment, buttons
for:
25
28
45 42 43
191
12
71
60 78
79
10
47
62
60
74
45
40
27 56
191.
58
53
156
112
— Electronic Stabilization Control
(ESC) 2. eee eee eee eee 86
—Emergency flashers ........... 44
— Retractable rear spoiler ........ 90
@) Infotainment system on/off button . 93
@3 Infotainment system unit ....... 93
@4 Button for rear window operation . 35
@3) Depending on equipment:
— Storage compartment
Cup holden wssois so esesscs oo omens vo 53
@® Parking brake ..............04. 65
@) Power top button .............. 32
Selector lever (S tronic).......... 67
G@) Tips
Some the equipment listed here is only instal-
led in certain models or is available as an op-
tion.
Indicator lights overview
The indicator lights in the instrument cluster
blink or turn on. They indicate functions or mal-
functions.
With some indicator lights, messages may ap-
pear and warning signals may sound. The indica-
tor lights and messages may be covered by other
displays. To show them again, select the second
tab for messages with the multifunction steering
wheel > page 12.
Some indicator lights in the display can display in
several colors.
CO Tati
Some indicator lights turn on briefly as a function
check when you switch the ignition on. These sys-
tems are marked with a V in the following tables.
If one of these indicator lights does not turn on,
there is a malfunction in that system.
The following indicator lights may be available,
depending on the vehicle equipment:

Instrument cluster

Accessing the sport displays in the additional
display
> Select on the multifunction steering wheel:
right control button > Additional display.
> Select the desired additional display.
G meter*
The G meter displays the longitudinal and lateral
acceleration. The maximum values that are
reached are stored and displayed when the vehi-
cle is stationary.
> To reset the stored values, select on the multi-
function steering wheel: right control button >
Reset values.
Engine data*
The engine data displays the current power and
torque.
Tire pressure monitoring system*
The tire pressure monitoring system displays the
current tire pressures and temperature. Also see
= page 261, Tire pressure monitoring system.
Messages
BRAKE/@)/‘C} Brake system
If this indicator light turns on, there is a malfunc-
tion in the brake system.
GG @ Brakes: stop vehicle and check brake
fluid level
Stop the vehicle and check the brake fluid level.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
Ga / @ Warning! No brake booster function
If the brake booster is not working, you have to
use much more force when braking the vehicle.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
BRE / ) Brakes: malfunction! Safely stop ve-
hicle
If the indicator light turns on and this message
appears, there is a malfunction in the brake sys-
tem.
16
1f BES / Gana B also turn on, there is a mal-
function in the ABS, ESC, and braking distribu-
tion.
Do not continue driving. See an authorized Audi
dealer or authorized Audi Service Facility for as-
sistance > A\.
GG /o Parking brake: malfunction! Safely
stop vehicle. See owner's manual
— If the indicator light and the message appear
when the vehicle is stationary or after switch-
ing the ignition on, check if you can release the
parking brake. If you cannot release the parking
brake, see an authorized Audi dealer or author-
ized Audi Service Facility. If you can release the
parking brake and the message still appears,
see an authorized Audi dealer or authorized Au-
di Service Facility immediately to have the mal-
function corrected.
— If the indicator light and message appear while
driving, the hill start assist or emergency brak-
ing function may be malfunctioning. It may not
be possible to set the parking brake or release
it once it has been set. Do not park your vehicle
on hills. See an authorized Audi dealer or au-
thorized Audi Service Facility for assistance.
The fe) indicator light turns on when the brake
pads are worn. Drive to an authorized Audi dealer
or authorized Audi Service Facility immediately to
have the brake pads checked.
Applies to: USA models: The fe} indicator light
turns on together with the IBRAKE| indicator light.

ZA WARNING
— If the brake fluid level is below the MIN
marking, it can impair the braking effect and
driving safety, which increase the risk of an
accident. Do not continue driving. See an au-
thorized Audi dealer or authorized Audi
Service Facility for assistance.
— If the brake system indicator light turns on
together with the ABS and ESC indicator
lights, the ABS/ESC regulating function may
be malfunctioning. Functions that stabilize
the vehicle are no longer available. This
could cause the rear of the vehicle to
swerve, which increases the risk that the >

4S1012721BA
Instrument cluster


vehicle will slide. Drive carefully to the near-
est authorized Audi dealer or authorized Au-
di Service Facility and have the malfunction
corrected.

Electromechanical parking

If the Zi / © indicator light turns on, the
parking brake has been set.
Zin A © Parking brake: warning! Vehicle
parked too steep
If the indicator light blinks and the message ap-
pears, there is not enough braking power to se-
cure the vehicle. The brakes have overheated. The
vehicle could roll away, even on a small incline.
gw Parking brake: malfunction! Please contact
Service
There is a malfunction in the parking brake. Drive
immediately to an authorized Audi dealer or au-
thorized Audi Service Facility to have the mal-
function repaired.
EG / (G) Parking brake: warning! Vehicle
parked too steep
There
is not enough braking force to hold the ve-
hicle in place. The brakes have overheated. The
vehicle could roll away, even on a small incline.
aE / {@) Parking brake: applied
If this message appears, press the brake pedal
first and then release the parking brake if neces-
sary.
G) Tips
For additional information on the parking
brake, see > page 65.
ete CT
& Turn off engine and check coolant level. See
owner's manual
The coolant level is too low.
Stop driving and switch the engine off. Check the
coolant level > page 236.
— If the coolant level is too low, add coolant
=> page 237. Only continue driving once the in-
dicator light turns off.
& Coolant temperature: too high. Let engine
run while vehicle is stationary
Let the engine run at idle for a few minutes to
cool off, until the indicator light turns off.
— If the indicator light does not turn off, do not
continue driving the vehicle. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.

Z\ WARNING
— Never open the engine compartment lid if
you can see or hear steam or coolant escap-
ing from the engine compartment. This in-
creases the risk of burns. When you no Lon-
ger see or hear steam or coolant escaping,
you may open the engine compartment with
caution.
— The engine compartment in any vehicle can
be a dangerous area. Stop the engine and al-
low it to cool before working in the engine
compartment. Always follow the informa-
tion found in > page 229, General informa-
tion.
@) Note
Do not continue driving if the Bg indicator
light turns on as this increases the risk of en-
gine damage.
EMT
The Ea indicator light monitors the safety sys-
tems.

Safety system
If the ka indicator light turns on or blinks, there
is a malfunction in a safety system.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
17

4S1012721BA
Instrument cluster

If the BB indicator lamp and the fs i &) ABS in-
dicator lamp turn on and the driver message ap-
pears, the ABS or electronic differential lock is
malfunctioning. This also causes the ESC to mal-
function. The brakes still function with their nor-
mal power, but ABS is not active.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
@) Tips
For additional information on ESC and ABS,
see > page 86.
<5 Engine control
If the B / B indicator light turns on, there is an
engine control malfunction. Drive slowly to an
authorized Audi dealer or authorized Audi Service
Facility to have the engine checked.
ON eae
If the A or N indicator light turns on, check
the message in the instrument cluster.
fi) Tank system
a Please refuel
If the indicator light turns on for the first time
and the message appears, there are about 3.3
gallons (12 liters) of fuel left in the tank.
AN} Please refuel immediately
If the indicator light turns on and this message
appears, the fuel tank is almost empty. Refuel
the vehicle immediately.
[i Tank system: malfunction! Please contact
Service
If the indicator light turns on and this message
appears, there is a malfunction in the tank sys-
tem. Drive to an authorized Audi dealer or au-
thorized Audi Service Facility immediately to have
the malfunction corrected.
(@) For the sake of the environment
Fuel should never enter the sewer system or
come into contact with the ground.
@) Tips
For more information on fueling, see
=> page 227.
® Washer fluid level
If the gE indicator light turns on, the washer flu-
id is almost out. Fill the washer fluid for the
windshield washer system and the headlight
washer system* when the ignition is switched off
=> page 242.
WI! Windshield wipers
If the ke indicator light turns on, then there is a
windshield wiper malfunction. Drive to an au-
thorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
-®: Bulb failure indicator
If the ka indicator light turns on, a bulb has
failed. The message indicates the location of the
bulb.
Replace the bulb immediately.
Vehicle lights: malfunction! Please contact
Service
There is a malfunction in the headlights or the
light switch. Drive immediately to an authorized
Audi dealer or authorized Audi Service Facility to
have the malfunction repaired.
2© Headlight range control system
By Headlight range control: malfunction! See
owner's manual
There is a malfunction in the headlight range
control system, which may cause glare for other
drivers. >
19

Driving

— When you stop and the Start/Stop system
turns the engine off, the ignition remains
on. Make sure the ignition is switched off
before you leave the vehicle or else the bat-
tery could drain.
General information
Applies to: vehicles with Start/Stop system
Starting and stopping the engine automat-
ically
The system checks if certain conditions are met
before and during the Stop phase, and deter-
mines if the engine stops and how long it re-
mains stopped. For example, if power usage is
high, the engine will not be stopped. Along with
other conditions, the following factors influence
the automatic engine start or stop:
— Environmental conditions (slopes, inclines, ele-
vation, temperature)
— Battery (charge status, temperature, power us-
age)
— Engine temperature
— Assist systems
— Driving behavior
Depending on the engine, the indicator light
may appear if the engine is not stopped.
Ignition is switched off automatically
To prevent the vehicle battery from draining, the
ignition will switch off automatically under the
following conditions:
— If the vehicle has already been driven
— If the Start/Stop system has stopped the en-
gine
— If the driver's door is opened
—If the driver's safety belt is unbuckled
— If the brake pedal is not pressed
— If the vehicle is stationary
In this case, the parking lights switch on in place
of the low beams and the message Side marker
lights will switch off automatically in 30 mi-
nutes. See owner's manual appears in the Info-
tainment system display. The side marker lights
will switch off after approximately 30 minutes or
when you lock the vehicle.
64

If the Start/Stop system has not turned off the
engine or if you have switched the Start/Stop sys-
tem off manually, the ignition will not be auto-
matically switched off and the engine will contin-
uetorun>A.

ZX WARNING
To reduce the risk of poisoning, never allow
the engine to run in confined spaces.
@ Tips '
If you select the “D”, “N” or “S” gear after
shifting into reverse, the vehicle must be driv-
en faster than 6 mph (10 km/h) in order for
the engine to switch off again.
Manually switching the Start/Stop system
ame emo
Applies to: vehicles with Start/Stop system

If you do not wish to use the system, you can
switch it off manually.
S g
2 § £
g z
Fig. 72 Center console: Start/Stop system button
> To switch the Start/Stop system off/on manual-
ly, press the || button. The LED in the button
turns on when the system is switched off.
G@) Tips
If you switch the system off during a Stop
phase, the engine will start again automati-
cally.

4S1012721BA
Intelligent Technology


reduce the risk of injury, do not place your
foot under the brake pedal.
@) Note
— Never let the brakes “rub” by pressing the
pedal lightly when braking is not actually
necessary. This can cause the brakes to over-
heat and increases braking distance and
causes wear.

— Before driving on long stretches with steep
hills, reduce the vehicle speed and shift to a
lower gear to use the engine braking effect.
This reduces the load on the brakes. If you
need to brake additionally, brake in intervals
and not continuously.
G) Tips
— If you retrofit your vehicle with a front spoil-
er, wheel covers or similar items, make sure
that the air flow to the brakes is not ob-
structed. Otherwise the brake system can
overheat.
— Also refer to the information about brake
fluid > page 239.
Steering
Electromechanical steering supports the driver's
steering movements by electronically adapting
the power steering depending on the vehicle
speed. The settings depend on the selected Audi
drive select* mode.
Dynamic steering
Applies to: vehicles with dynamic steering
The driving dynamic and driving stability are in-
creased by the steering ratio based on the speed.
At reduced speeds, steering is direct in order to
provide agile steering behavior and keep the
steering effort as minimal as possible when the
driver is maneuvering the vehicle. This sets the
steering to be less sensitive at higher speeds in
order to provide improved vehicle control.
Messages
a Steering: malfunction! Please stop vehicle
The power steering may have failed. Adapt your
driving style immediately to compensate for the
fact that it may be more difficult to turn the
steering wheel, and stop your vehicle in a safe lo-
cation as soon as possible. Do not continue driv-
ing. See an authorized Audi dealer or authorized
Audi Service Facility for assistance.
a Steering: malfunction! You can continue
driving
There is a malfunction. Steering may be more dif-
ficult or more sensitive. Adapt your driving style.
Have the steering system checked immediately
by an authorized Audi dealer or authorized Audi
Service Facility. Please note that the red indicator
light may turn on after restarting the engine. Do
not continue driving if it does.
Dynamic steering: correcting steering wheel
Position
The steering is reinitializing. The steering wheel
will move easily after starting the vehicle. Reiniti-
alization might be necessary if the steering wheel
was moved while the engine was switched off.
The display turns off if the initialization was suc-
cessful.
@) Tips
— If there is a malfunction, the steering wheel
may be crooked when driving straight.
—Ifthe a or Ee indicator light only stays on
for a short time, you may continue driving.
All wheel drive (quattro)
Applies to: vehicles with all wheel drive
In all wheel drive, all four wheels are powered.
General information
In all wheel drive, the driving power is divided be-
tween all four wheels. This happens automatical-
ly depending on your driving behavior as well as
the current road conditions. Also see > page 86,
Electronic stabilization control (ESC).
The all wheel drive concept is designed for high
engine power. Your vehicle is exceptionally pow-
erful and has excellent driving characteristics
both under normal driving conditions and on >
89

Checking and Filling

Checking and Filling
Fuel
Types of gasoline
The correct gasoline grade is stated on the inside
of the fuel filler door.
The vehicle is equipped with a catalytic converter
and must only be driven with unleaded gasoline.
Audi recommends using TOP TIER Detergent Gas-
oline. For additional information on TOP TIER De-
tergent Gasoline, visit www.toptiergas.com.
The individual gasoline grades are differentiated
by octane ratings. This value is given with (R
+M)/2 equating to AKI or in RON.
The headings below match the sticker in the fuel
filler door.
UNLEADED FUEL ONLY MIN. (R+M)/2 87
Regular / MIN. RON 91 Regular
Use regular gasoline with minimum 87 AKI /
91 RON > ©.
Audi recommends using premium gasoline with
minimum 91 AKI / 95 RON to achieve the rated
horsepower and torque.
UNLEADED FUEL ONLY PREMIUM MIN. (R
+M)/2 91 / SUPER MIN. RON 95
Using premium gasoline with minimum 91 AKI /
95 RON is recommended.
If premium gasoline is not available, you can also
use regular gasoline 87 AKI / 91 RON. However
this does reduce the engine power slightly.
() Note
— Filling the tank just one time with leaded
fuel or other metallic additives will cause
permanent deterioration to the catalytic
converter function.
— When gasoline with an octane rating that is
too low is used, high speeds or heavy engine
load can lead to engine damage.
226
G) Tips
The vehicle may be filled with fuel that has a
higher octane rating than what is required by
the engine.
Gasoline mixture
Gasoline with alcohol or MTBE (Methyl-Tert-
Butyl-Ether)
You can use unleaded gasoline mixed with alco-
hol or MTBE (generally labeled as oxygenated
compounds) as long as the fuel meets the follow-
ing conditions:
Gasoline with methanol content (methyl alco-
hol
or methanol)
— Anti-Knock Index is at least 87 AKI
—No more than 3% methanol
— More than 2% solvent
Gasoline with ethanol content (ethyl alcohol or
ethanol)
— Anti-Knock Index is at least 87 AKI
—No more than 15% ethanol
Gasoline with MTBE content
— Anti-Knock Index is at least 87 AKI
—No more than 15% MTBE
Gasoline adapted to the season
Many gasoline fuels are adapted to the seasons.
When the season changes, we recommend refu-
eling at high-traffic gas stations. It is more likely
that the gasoline will be suitable for the season
there.
() Note
— Gasoline with methanol content that does
not meet the specified conditions may cause
corrosion damage and damage to plastic or
rubber components in the fuel system.
— Do not use gasoline that does not meet the
specifications.
— If you are unable to find out if a specific gas-
oline mixture meets the specifications, ask
the gas station operator or their fuel suppli-
er.

4S1012721BA
Checking and Filling


the high temperature of the emissions sys- or authorized Audi Service Facility to have the
tem could start a fire. malfunction corrected.

— Do not apply underbody protectant in the
exhaust system area, because this increases AN WARNING
the risk of fire. Incorrect use of the connection port for the
On Board Diagnostic System can cause mal-
eo functions, which can then result in accidents
and serious injuries.

Follow the safety precautions > page 228, Gener- — Only allow an authorized Audi dealer or au-
al information. thorized Audi Service Facility to read out the
engine data.

The vehicle may only be driven with unleaded
gasoline, or the catalytic converter will be de- .
stroyed. Engine compartment
Never drive until the tank is completely empty. General information
The irregular supply of fuel that results from that
can cause engine misfires. Uncombusted fuel
could enter the exhaust system, which could

Special care is required if you are working in the
engine compartment
cause overheating and damage to the catalytic For work in the engine compartment, such as
converter. checking and filling fluids, there is a risk of in-
jury, scalding, accidents, and burns. For this
On Board Diagnostic System (OBD) reason, follow all the warnings and general
safety precautions provided in the following in-
formation. The engine compartment is a dan-
gerous area. > /\.
The On Board Diagnostic System monitors the
engine and transmission components that influ-
ence emissions.
ZA\ WARNING
— Turn the engine off.
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Allow the engine to cool.
— Keep children away from the engine com-
partment.
— Never spill fluids on a hot engine. These flu-
ids (such as the freeze protection contained
in the coolant) can catch fire.
— Avoid short circuits in the electrical system.
— Never reach into the radiator fan. The fan is
Engine data can be read out at the On Board Di- temperature-controlled and can turn on
agnostic System connection port using a special suddenly, even when the ignition is switched
testing device > fig. 175. off.
S S$
z a

port for the On Board Diagnostic System (OBD)
On Board Diagnostic System
Indicator light — Never open the engine compartment lid
when there is steam or coolant escaping
from the engine compartment, because
there is a risk that you could be burned.
Wait until no steam or coolant is escaping.
If the S indicator light blinks or turns on, there
is a malfunction that is causing poor emissions
quality and that could damage the catalytic con-
verter. Drive slowly to an authorized Audi dealer
229