2021 AUDI A7 check engine

Table of contents

Co | fan a 236
General information................. 236
DVD: drive « swe s 2 awe 2 ewes 2 ewe see 236
Bluetooth audio player............... 237
Amazon Alexa.... 2.0.0. cece eee eee 237
Multimedia connections.............. 238
Playing medias. « & ssc 2c ewae « owe oo ee 239
Options
and settings................. 243
Supported media and file formats...... 244
Troubleshooting ewies 2 < sce se enw so xy 245
Audi smartphone interface...... 247
S@tUD « ses + y gam peas + yoms os Bene 247
Troubleshooting.............-..00005 248
Additional settings.............. 249
Systemisettingsc « + cssuene so mvswee a soseeue vs 249
Software update........... 0.0 e eee 250
Connected devices..............2---5 251
Legal.information ss « sess s+ ama sx ween « 252
Additional information.......... 253
Brands and licenses...............-4- 253
Maintenance and Care........... 254
Checking and Filling............. 254
Fuel... cee eee 254
Refueling ......... 0... ce eee ee eee eee 255
Emissions control system............. 259
Engine compartment.............+06% 259
Engineoil........ 00... eee eee eee 262
COOLINGSYSEEM « « sees & = nets 5 = eetew so ore 266
Brake:fluid «2 csoswe s 2 wscceve ov eevee oo erm 269
Electrical system. ...........002-0 00 269
Battery: » = sees = » mean 5 4 meee ye ee Gt BE 270
Windshield washer system...........- 272
Service interval display............... 273
WWATEBUSE. core 5 6 sae oo sms oo ee oo oe 274
Wheels and Tires...........--0000 00s 274
Tire pressure monitoring system....... 292
Tire pressure monitoring system....... 294
Run-flat tires... 2.2... cee eee eee eee 296
Care and cleaning................ 298
General information..............4.. 298
Car washes ........... 0000 e eee ee eee 298
Cleaning and care information......... 299
Taking your vehicle out of service....... 304
Doilt Yoursell eis ics tiie as nscwa so ease 305
Emergency assistance........... 305
General information................. 305
EQUIPIMIENE sso 6s cass a 2 sam o & aueeM wow 305
Tire mobility kit.............0...000. 305
Replacing wheels................-.4. 308
Space-saving spare tire............... 311
JUN PESTAREIAG « x sensves » a seemme @ » emcee oo econ 311
TOWING... 2 eee eee eee ee 313
Fuses and bulbs.................. 316
Fuses... 0... eee eee eee 316
Bul BSc = = geupe 2 » eeu ¢ e meuee xe Ee a eS 320
Customer information........... 321
Data privacy...................... 324:
Privacy NOtiCe « iesis 2s moms + eee ¥ wee 321
Image recording................-.00. 321
Data memories............0.ceeeeeee 321
Transmitted information.............. 323
Accessories and technical
CHANGES: « « owes 5 ¢ sews + & eeu bc eS oe 326
Wa Plat yiis < s eseceits © + seavene i + snereie © w omneete 326
Audi Literature Shop..............0-- 326
Driving in other countries............. 326
Maintenance, repairs, and technical
modifications..................00008 326
Accessories and parts..............-. 328
Reporting Safety Defects.............. 328
Declaration of compliance for
telecommunications equipment and
electronicisystemsi. se sve sx esis 2 x ee 329
Technical data.................... 331
Identification data................00. 331
Vehicle data........... 0... cee eee eee 331
TMAOX:: « s sence 3 2 neem © 2 eens © x eee 2 Be 333

4K8012721BF
Quick access

PESOGKEH oo cscieie vw encase vo asveame v a ae 82
— Vehicle key holder
@_ Depending on equipment:
— Starting the engine if there is a


MAlFUNCCION gsc ¢ 2 xawa x s geen a 5 94
— Audi musicinterface .......... 238
— Audi phone box ............... 199
@9 Electromechanical parking brake
BUttON asso «a asowces 0 x amowinte x 3 awssni Y 107
@2 Automatic transmission selector
LOVER arcane oo arnene mn emma os mao Ka 95
@ START ENGINE STOP] button .... 93
@3) Steering wheel adjustment ...... 66
@4 Lever for:
— Cruise control system ......... 151,
— Adaptive cruise assist .......... 154
@5) Connection port for the On Board
Diagnostic System (OBD) ........ 321
@8) Buttons for:
—Lights ..................004. 52
—All-weather lights ............ 52
—Rear fog lights ............... 52
@) Hood release .............0.0.. 261
Button for:
— Luggage compartment lid ...... 43
— Fuel filler door release (plug-in
hybrid drive): : ssc scses s swan 256
@9) Exterior mirror adjustment ...... 57
69 Buttons for:
— Power windows ............0. 47
—Child safety lock .............. 46
@) 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. Some warning and indicator lights
turn on when you switch the ignition on and must
turn off when the drive system is switched on or
while driving.
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 13.
Some indicator lights in the display can display in
several colors.
OMe eee any
If the wA or N indicator light turns on, check
the message in the instrument cluster.
The following indicator lights may be available,
depending on the vehicle equipment:

Red indicator lights
Central indicator light
=> page 7,
Instrument cluster
=> page 12
Safety belt
=> page 70




















Engine start system
=> page 94
Transmission
=>page 99
Drive system
=> page 104,
Electrical system
=> page 269
Charging system
=>page 125
Electromechanical parking brake
=> page 107
Electromechanical parking brake
=> page 108
Brake system
=> page 107, > page 108,
=> page 269

Driving

— D (Drive)
Selecting a gear
Requirement: the ignition must be switched on.
— Bring the vehicle to a full stop and press the
brake pedal.
— Press the release button @ on the selector lev-
er.
—To select the nearest gear, move the selector
lever forward or back until you feel the first
pressure point.
—To skip a gear (for example, move from “D” to
“R”), move the selector lever past the pressure
point in the desired direction.
— The label next to the selector lever for the se-
lected gear will light up.
“N” (Neutral) gear
In the “N” gear, power is not transmitted to the
driving wheels. Use the “N” gear in a car wash
(with conveyor belts), for example.
If you unintentionally select “N” while driving
(faster than 1 mph (2 km/h)), you can also shift
back to “D” without pressing the brake pedal.
For safety reasons, the vehicle cannot be locked
when the transmission is in the "N” gear.
“Pp” (Park) gear
Requirement: the ignition must be switched on.
The vehicle is secured from rolling away by the
parking lock when in the “P” gear.
— Bring the vehicle to a full stop and press the
brake pedal.
— Press the “P” button (2) on the selector lever.
— The “P” next to the selector lever will light up.
“P” engages automatically if you switch the en-
gine off while the “D” or “R” gear is selected. If
you switch the engine off in “N”, “P” will engage
automatically after approximately 30 minutes.
Applies to: vehicles with S tronic transmission: If
you want to shift from “P” to “D” or “R”, the en-
gine must be running.
Applies to: vehicles with tiptronic transmission:
If you want to switch to another gear from “P”,
the engine must be running.
96
If you cannot shift out of “P”, for example be-
cause the vehicle has no power, you may need to
use the emergency release for the parking lock
>page 99.
Selecting the driving program
Various driving programs can be selected when in
the “D” gear. The programs influence when the
transmission shifts and how the accelerator ped-
al responds.
The selected driving program is displayed in the
instrument cluster.
— D (Drive): normal driving mode
— S (Sport): sporty driving mode
If you select the Dynamic mode in Audi drive se-
lect*, the “S” driving program will be activated.
When the ignition is switched off, the driving pro-
gram may be reset to “D”.
To switch between the current driving program
and “S”, push the selector lever toward the rear.
Plug-in hybrid drive system: Not all plug-in hy-
brid modes are available in the “S” driving pro-
gram. The driving program or plug-in hybrid
mode will be automatically adjusted if it is not
compatible with an operation.

Z\ WARNING
— Before you start driving, check if the label
for the desired selector lever position next
to the selector lever is lit up.
— Secure the vehicle against rolling before ex-
iting the vehicle > page 94.
— Power is still transmitted to the wheels
when the engine is running at idle. To pre-
vent the vehicle from “creeping”, you must
keep your foot on the brake in all selector
lever positions (except "P" and "N") when
the engine is running.
—To reduce the risk of an accident, do not
press the accelerator pedal when changing
gears if the vehicle is stationary and the en-
gine is running.
— Never select the “R" or "P” gears while driv-
ing. Doing so could cause an accident.
— The vehicle can roll even if the ignition is
switched off.

4K8012721BF
Driving

@) Note
Always switch the Start/Stop system off when
driving through water > page 104.
G) Tips
— Depending on the driving situation, the en-
gine may already stop when coasting before
the vehicle has come to a complete stop.
— Ifyou select the "D" position after shifting
into reverse, the vehicle must be driven fast-
er than 6 mph (10 km/h) in order for the
Start/Stop system to become active again.
This makes it possible to maneuver without
stopping the engine.
Stopping and starting the engine
Applies to: vehicles with Start/Stop system
> Press and hold the brake pedal until the vehicle
has stopped. The @ indicator light appears in
the instrument cluster once the engine stops
automatically.
> The engine starts again when you remove your
foot from the brake pedal. The indicator light
turns off.
If the parking brake is set, the engine will only
start again when the accelerator pedal is pressed.
@ Tips
— Press the brake pedal during a Stop phase
to keep the vehicle from rolling.
— The ignition will turn off if you press the
START ENGINE STOP] button during a Stop
phase.
— If you leave the vehicle briefly during a Stop
phase and then enter again, the driver's
door must be closed and the safety belt
must be fastened in order for the engine to
be able to restart.


— You can control if the engine will stop or not
by reducing or increasing the amount of
force you use to press the brake pedal. For
example, if you only lightly press on the
brake pedal in stop-and-go traffic or when
turning, the engine will not switch off when
the vehicle is stationary. If you press the
brake pedal harder, the engine will switch
off.
Starting and stopping the engine automat-
ically
Applies to: vehicles with Start/Stop system
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
Applies to: vehicles with Start/Stop system
Drive system: please start the vehicle manually
This message appears when specific conditions
are not met during a Stop phase. The Start/Stop
system will not be able to restart the engine. The
engine must be started with the
START ENGINE STOP] button.


Vehicle starting system: malfunction! Please
contact Service
There is a malfunction in the Start/Stop system.
Drive the vehicle to an authorized Audi dealer or
authorized Service Facility as soon as possible to
have the malfunction corrected.
Brakes
General information
You can apply the vehicle's brakes using the brake
pedal. >
105

4K8012721BF
Driving


— Never let the vehicle roll while the engine is
stopped because this increases the risk of an
accident.
— During automatic braking maneuvers, the
brake pedal may move downward automati-
cally. To 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.
— Observe the important information for driv-
ing downhill > page 109. This especially ap-
plies when towing a trailer.
@ 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 269.
Messages
EG / @ Brakes: malfunction! Stop vehicle
safely

There is a malfunction in the brake system. If
BS / Bana B also turn on, there is a malfunc-
tion in the ABS, ESC, and braking distribution. If
the brake booster is not working, you have to use
much more force when braking the vehicle.
Do not continue driving. See an authorized Audi
dealer or authorized Audi Service Facility for as-
sistance. Read and follow the other safety pre-
cautions > A\.
GG / @ Brake pads: wear limit reached. You
can continue driving. Please contact Service
The brake pads are worn. Drive to an authorized
Audi dealer or authorized Audi Service Facility as
soon as possible to have the malfunction correct-
ed.
Brake booster: limited functionality. You can
continue driving. Please contact Service
There is a brake booster malfunction. The brake
booster is available, but its effectiveness is re-
duced. The braking performance may be different
compared to the usual performance. Drive to an
authorized Audi dealer or authorized Audi Service
Facility immediately to have the malfunction cor-
rected.
Brake booster: deactivated. See owner's manual
The brake booster remains active for a brief peri-
od of time after switching off the ignition. Secure
the vehicle against rolling > page 94.
Other indicator lights
When you switch the ignition on, the TG /@
indicator light turns on briefly to check the func-
tion. If the indicator light does not turn on, there
is a system malfunction.
riie/ stays on, there is a malfunction in
the brake system.
@- A high load was placed on the brakes from
driving downhill for a long period of time. Follow
the instructions in the message to utilize the en-
gine braking effect and to relieve the brakes.

Z\ WARNING
If a malfunction occurs in the ABS, ESC, and
braking distribution, interventions that stabi-
lize the vehicle will no longer be available.
This could cause the vehicle to swerve, which
increases the risk that the vehicle will slide.
Do not continue driving. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.


Electromechanical
parking brake
Operating the parking brake
The electromechanical parking brake is used to
secure the vehicle from rolling away unintention-
ally.
The @) switch is located under the selector lever
in the center console. It turns on when the >
107

4K8012721BF
Driving

If the message stays on, if the parking brake can-
not be released, or if the message appears while
driving, do not continue driving. Secure the vehi-
cle against rolling before exiting the vehicle
= page 94. See an authorized Audi dealer or au-
thorized Audi Service Facility for assistance.
fw Parking brake: malfunction! Please contact
Service
There is a malfunction in the parking brake. Drive
to an authorized Audi dealer or authorized Audi
Service Facility immediately to have the malfunc-
tion corrected. Do not park the vehicle on inclines
and shift to “P”.
A / {Q) Parking brake: warning! Vehicle parked
too steep
The braking force may not be enough to secure
the vehicle from rolling away. Park the vehicle in
a place with less of an incline.
fa / Parking brake: applied
The parking brake is set. Press and hold the brake
pedal
to release the parking brake.
Special driving situations
Sy Seas ASLAN LLS)
Applies to: RS models
When driving in a sporty style, the wear on all ve-
hicle components is greatly increased, especially
on the engine, transmission, tires, brakes, and
suspension. This can result in increased wear. Al-
so note the following points:
— Make sure the vehicle is in good condition.
Make sure to check the brake pads, tire tread,
and tire pressure (when tires are warm).
— Beforehand, warm up the engine by driving no
higher than two-thirds of the maximum permit-
ted engine RPM. The engine oil must be
brought to a minimum temperature of 158 °F
(70°C).
— Before stopping the vehicle, allow the engine
and brakes to cool back down to a regular oper-
ating temperature by driving normally.
If necessary, use the following functions:
— Dynamic Audi drive select mode* > page 111
— Launch Control > page 98
— Limit ESC > page 116
@ Tips
Wear caused by load does not constitute a ve-
hicle fault as defined by the terms of the war-
ranty.
Driving uphill and downhill
When driving uphill, downhill, or at high alti-
tudes, note the following information:
— Drive slowly and carefully.
— Do not try to turn around if you cannot safely
drive on an incline or hill. Instead, drive in re-
verse.
— When driving down hills, you can activate the
hill descent control if you press the brake pedal
while driving in “D” gear. The automatic trans-
mission will select a gear suitable for driving
down the hill and will attempt to maintain the
speed at which the vehicle was traveling at the
time the brake pedal was pressed. Press the
brake pedal if necessary. The hill descent con-
trol will switch off once the hill levels out or
you press the accelerator pedal.
— Utilize the engine braking effect when driving
downhill by selecting the “S” driving program
=> page 96. This especially applies when towing
a trailer. This reduces the load on the brakes.
— Apply the brakes in intervals and do not press
the brake pedal continuously.

ZA\ WARNING
— Only drive on inclines that your vehicle is de-
signed to handle. Do not exceed the hill
climbing ability of your vehicle. Your vehicle
could tip or slide.
— Do not drive at an angle on steep inclines
and hills. If your vehicle is about to tip, you
must immediately start steering in the di-
rection of the downward slope to reduce the
risk of an accident.
— Always be ready to brake when using the hill
descent control function.

109

Driving

Driving through water
If you must drive through water, follow these in-
structions:
— Check the stability of the ground, the current,
and the water depth. If the ground is unstable,
there is a strong current, or there are waves,
the water must only reach up to the lower edge
of the body at the most.
— Deactivate the Start/Stop system.
— Drive carefully and no faster than at walking
speeds to prevent the front of the vehicle from
creating waves, because they could splash
above the lower edge of the body. Oncoming
vehicles could also create waves.
— Do not stop the vehicle while in the water.
— Drive in reverse.
— Do not turn the engine off.

After driving through water, press the brake
pedal carefully to dry the brakes so that the
full braking effect will be restored.

Vehicle components such as the engine, drive
system, suspension, or electrical system can
be severely damaged by driving through wa-
Lele
If possible, avoid driving through salt water
because it increases the risk of corrosion. Use
fresh water to clean any vehicle components
that come into contact with salt water.
110

Driving dynamic

wheels to reduce the steering effort needed by
the driver and to reduce the turning radius. Vehi-
cle handling improves. At high speeds, steering
the rear wheels in the same direction as the front
wheels improves the vehicle response and driving
stability. The vehicle reacts quickly and precisely
to the driver's steering movements.
Messages
& 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.
& Steering: malfunction! Please stop vehicle.
Pay attention to distance at side
The rear axle steering may have failed. More
space on the road may be needed at the side of
the vehicle, and the turning radius may be much
larger. Slow down immediately, and stop your ve-
hicle as soon as possible in a safe location with
enough space at the sides of the vehicle. Do not
continue driving. See an authorized Audi dealer
or authorized Audi Service Facility for assistance.
io] Steering: malfunction! Please stop vehicle
There is a malfunction in the electronic steering
lock. You cannot turn the ignition on. Secure the
vehicle against rolling before exiting the vehicle
= page 94. Do not tow your vehicle because it
cannot be steered. See an authorized Audi dealer
or authorized Audi Service Facility for assistance.
& Steering: malfunction! You can continue
driving
There is a malfunction in the steering system.
Steering may be more difficult or more sensitive.
Adapt your driving style. Have the steering sys-
tem checked immediately by an authorized Audi
dealer or authorized Audi Service Facility. Please
note that the red indicator light may turn on af-
ter restarting the engine. Do not continue driving
if it does.
114
a Steering: malfunction! Adapt driving style.
Larger turning radius
The rear axle steering may have failed. The vehi-
cle will have a larger turning radius, and the sta-
bility when driving around curves will be compa-
rable to a vehicle without rear axle steering. Drive
carefully to an authorized Audi dealer or author-
ized Audi Service Facility to have the malfunction
corrected.
& Steering lock: malfunction! Please contact
Service
There is a malfunction in the electronic steering
lock. Drive immediately to an authorized Audi
dealer or authorized Audi Service Facility to have
the malfunction repaired.
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.

Z\ WARNING
Do not tow your vehicle if there is a malfunc-
tion in the electronic steering lock because
this increases the risk of an accident.
@) Tips
— If there is a malfunction, the steering wheel
may be crooked when driving straight.
—Ifthe a or & indicator light only stays on
for a short time, you may continue driving.

ALL wheel drive (quattro)
Applies to: vehicles with all wheel drive
The all-wheel drive system distributes the driving
power variably to the front and rear axle to im-
prove the driving characteristics. It works togeth-
er with selective wheel torque control, which can
activate when driving through curves
> page 116.