2020 AUDI A5 check engine

Table of contents

Audi smartphone interface...... al;
Setup... eect ee 211
TrOuUBLESHOOtING wees « & wees « 2 eos so eee 212
Additional settings.............. 213
System settingS.......+seeeeceeveees 213
Software update...............2.000. 214
Connected devices..........-..000005 214
Legalinformation................... 215
Maintenance and Care........... 217
Checking and Filling............. 217
FUClss: + quan ¢ x deme 2 2 seme ey eee & 2 ee 217.
Refuelimgsaiins «+ anawece x a cause « wvensue a © sunnes 218
Emissions control system............. 220
Engine compartment................. 221
ENQineOiles cscceoe s+ serie oo ermace 2 3 ences ¥ es 223
Cooling system. ............ 0. eee eee 227
Braketluid): « s wom as ween a ¢ aewee + & oe 229
Electrical:systemisses «sss ee eee vo wees 229
Battery. ..... 2.00.00 ese eee eee ee 230
Windshield washer system...........- 232
Service interval display............... 233
Wheels.............. 0.0. e eee eee 234
Wheelsiaiid Tires « cass ¢ 2 awe ¢ 2 mean a 5 234
Tire pressure monitoring system....... 252
Care and cleaning................ 254
General information wo. ceo saeco es 254
Car washes...............2..20.00005 254
Cleaning and care information......... 255
Taking your vehicle out of service....... 259
Do-It YOUrSEUT v5 ¢ «gee8 & peas es eee 260
Emergency assistance........... 260
General
information................. 260
EQUIPITICNE sass ¢ ¢ eens + eeen a 3 ces 3s He 260
Tire mobility kit ose: <2 cere ae eee se ees 260
Changingatire..............0.. eee 262
Space-saving spare tire............... 265
JUITIP'SESHEING « cores s « were « ¥ eerws & 2 cores 266
TOWING senses <2 seexsie s > costeine © « serene « o samenes 267
Fuses and bulbs........:6..000005 270
FUSCSiercs i & accaans ao cena ooo mero wom ROI & 270
Bulbs. .... 0... eee eee eee eee eee 274
Customer information........... 275
Data privacy..................000. 275
Image recording............seeeeeees 275
Datamemoniesy. « s sscams sv sume ov ene a 0s 2758
Transmitted information.............. 276
Accessories and technical
CHANGES... 1... eee eee eee 278
Warranty......... 00-000. e eee eee 278
Audi Literature Shop..............00. 278
Driving in other countries............. 278
Maintenance, repairs, and technical
MOGIFIcAatIONS vase x x mem = x saw x 2 sue 278
Accessories and parts................ 280
Reporting Safety Defects.............. 280
Declaration of compliance for
telecommunications equipment and
electronic systems............---0000- 281
Wechinicaldata:... . secs. s wen es ews 283
Identification data................00. 283
Vehicle dataiscs: = s xews 2s eens sp oes ye 283
Index... 0.2... eee 285

8W7012721BA
Quick access

@) Center armrest with storage com-
partment. Depending on vehicle
equipment, it may have:


— Audi music interface .......... 203
—Audi phone box ............... 167
— Starting the engine when there is
A
MALPUNGEION 2 2 aceon 2 wom © & ae 100
@ Electromechanical parking brake
BUTEON scece: oo samen 2 oom 2 x ene 9 110
@ Selector lever (automatic transmis-
SION) seve & # sere & o ES Go OE GB 102
@4 Storage compartment .......... 88
@) [START ENGINE STOP] button .... 100
@ Audi music interface ............ 203
@) Steering wheel adjustment ...... 70
Lever for:
— Cruise control system ......... 130
— Audi adaptive cruise control .... 134
@9) Button for switching the head-up
display on/off, adjusting the height . 23
G0) Instrument illumination ......... 59
62 Connection port for the On Board
Diagnostic System (OBD) ........ 275
@) Light switch ................00. 54
@3 Hood release .........0...0.0.. 222
G4 All-weather lights button ........ 54
@5) Luggage compartment lid button . 36
G6 Exterior mirror adjustment ...... 60
62 Buttons for:
— Power windows .............. 41
— Central power window switch ... 41
—Child safety lock .............. 40
@) 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 12.
Some indicator lights in the display can display in
several colors.
OMe elle Lins
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,
Audi pre sense
=> page 146,
Instrument cluster
=> page 11
Safety belt
=> page 74
Transmission
=> page 105
Drive system
=>page 105
Electromechanical parking brake
> page 111
Electromechanical parking brake
=> page 111
Brake system
=> page 110, > page 111,
=> page 229
Brake system
=> page 110, > page 111,
=> page 229
Steering
=>page 115

8W7012721BA
Driving

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.
If you want to switch from “P” to “D” or “R”, the
engine must be running.
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 105.
Selecting a 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.

ZX WARNING
— Before starting to drive, check if the desired
gear is displayed next to the selector lever.
— Always secure your vehicle from rolling
away. Press the brake pedal or shift to “P”.
When leaving the vehicle, also set the park-
ing brake.
— 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.

G) Tips
If you shift between “D” and “R” within one
second, you do not need to press the brake
pedal. This makes it possible to “rock” if it is
stuck, for example.
103

Driving

If you switch the system off during a Stop phase,
the engine will start again automatically.
Basic requirements
—The driver's door and hood must be closed.
—"P","N", or"D" must be engaged.
—The steering wheel must not be turned far in ei-
ther direction.
— The vehicle must have driven faster than 2 mph
(3 km/h) since the last time it stopped.
— The vehicle is not in trailer mode.
@) Note
Always switch the Start/Stop system off when
driving through water > page 107.
@) Tips
— Depending on the driving situation, the en-
gine may already stop when coasting before
the vehicle has come to a complete stop )).
— If you 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.
@ 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.



D_ In certain countries.
108
— If you leave the vehicle briefly during a Stop
phase, the driver's door must be closed and
the safety belt buckled 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-
ire] NY
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
Depending on the engine, the indicator light
may appear if the engine is not stopped.
Messages
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.

Driving

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 112. 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 229.
Messages
Ge / @ Brakes: malfunction! Safely stop ve-
hicle
There is a malfunction in the brake system. If
fs / © and B also turn on, there is a malfunc-
tion in the ABS, ESC, and braking distribution.
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\.
BRENG / ) 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.
HG / | 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
110
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 from rolling by selecting “P” and set-
ting the parking brake.
Other indicator lights
When you switch the ignition on, the indicator
light Ea / ® turns on briefly to check the
function. If the indicator light does not turn on,
there is a system malfunction.
if fie /@) stays on, there is a malfunction in
the brake system.
@® - There was a heavy load on the brakes. Fol-
low the instructions in the message to utilize the
engine braking effect and to relieve the brakes.

ZA 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 park-
ing brake is set. You can release the parking brake
manually or automatically when you start to
drive.
Setting and releasing the parking brake
> Setting: pull the © switch.

Driving

driving. See an authorized Audi dealer or author-
ized Audi Service Facility for assistance.
we 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 / 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.
& / {Q) Parking brake: applied
The parking brake is set. Press and hold the brake
pedal to release the parking brake.
Take over!
The vehicle cannot be held in place automatically.
Press the brake pedal to secure the vehicle from
rolling away unintentionally.
Special driving situations
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 103. This especially applies when tow-
112
ing a trailer. This reduces the load on the
brakes.
— Brake in intervals and do not press the brake
pedal continuously.

Z\ 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.
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.

Z\ WARNING
After driving through water, press the brake
pedal carefully to dry the brakes so that the
full braking effect will be restored.
C) Note
Vehicle components such as the engine, drive
system, suspension, or electrical system can
be severely damaged by driving through wa-
kets

8W7012721BA
Driving dynamic

Ground clearance
The vehicle height and clearance can be influ-
enced by the following factors:
— Change in temperature
— Change in load

Z\ WARNING
To reduce the risk of injury, make sure no one
gets pinched when the vehicle level is chang-
ing, for example when cleaning the under-
body or the wheel housings.
@) Note
Always make sure there is enough clearance
above and below the vehicle. This is especially
important for entrances with height restric-
tions, for example, before driving into under-
ground garages. You could also scrape the
ground when driving over the edges of curbs
or on steep ramps, which could damage your
vehicle.
| o | Suspension: malfunction! You can continue
driving

There is a malfunction. See an authorized Audi
dealer or authorized Audi Service Facility for as-
sistance.
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 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.
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.
—If the a or A 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
115

8W7012721BA
Trailer towing

Trailer towing
Driving with a trailer
General information
Your vehicle is primarily intended for transport-
ing people and luggage. However, if you drive
with a trailer, follow the technical requirements,
the operation and driving tips, and the legal reg-
ulations.
Driving with a trailer affects the vehicle's energy
usage, performance, and wear. It also requires
higher concentration from the driver.

Z\ WARNING
Do not transport any people in a trailer due to
the risk of fatal injury.
Technical requirements
Trailer hitch

Only use a trailer hitch with a removable ball
hitch mount and ball hitch. The trailer hitch must
be permitted for the vehicle, the trailer and the
permitted total weight of the trailer being
pulled. Above all, it must be securely and safely
attached to the vehicle trailer.
Never mount a trailer hitch on the bumper. The
trailer hitch must be mounted in a way that does
not impair the function of the bumper. Do not
make any changes to the exhaust system and the
brake system.
Check regularly if the trailer hitch is securely
mounted. Always follow the instructions given by
the trailer hitch manufacturer.
Trailer brakes
If the trailer has its own brake system, then fol-
low the manufacturer specifications. However,
the brake system on the trailer must never be
connected to the vehicle brake system.
Engine cooling system
Driving with a trailer means a higher load on the
engine and the cooling system. The cooling sys-
tem must be designed for additional load and
contain enough coolant > @.
CG) Note
Longer inclines cannot be driven without a
suitable cooling system, especially if the out-
side temperatures are high. Otherwise, this
increases the risk of engine damage.
Operating instructions
Towing capacity
Your vehicle can only be operated with class 1 or
class 2 trailers.
Load distribution
Poor cargo load and distribution can negatively
impact vehicle handling. Load the trailer based
on the following criteria as much as possible:
— Store objects in the vehicle luggage compart-
ment, if possible. The vehicle should always
carry the heaviest possible load and the trailer
should have the lightest possible load.
— Distribute the load in the trailer so that the
heavy objects are as close to the axle as possi-
ble.
— Secure objects so that they do not slide.
— Utilize the maximum permitted tongue weight
if possible.
Tires
Set the tire pressure on your vehicle for a “full
load”; see the tire pressure sticker > page 244. If
necessary, also adjust the tire pressure on the
trailer according to the manufacturer's specifica-
tions.
The trailer and the vehicle should be equipped
with winter tires when driving in winter tempera-
tures.
Outside mirrors
If you cannot see the traffic behind the trailer
with the standard exterior mirrors, then you
must attach additional exterior mirrors. Adjust
them so you have a sufficient visibility behind
you.
Exterior lighting
Follow the legal regulations for lighting on your
trailer that are applicable in the country where
119
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