2020 AUDI A5 check engine

Checking and Filling

Charging the battery

Fig. 171 Engine compartment: connectors for a charger or
jump start cables
Note the safety precautions > page 221, General
information, > /\ in Battery general informa-
tion on page 230 and > /\.
Requirement: only use chargers with a maximum
charging current of 14.8 volts. The battery ca-
bles remain connected.
The battery is located in the engine compart-
ment. The ground point ©) is always located on
the vehicle body.
> Switch off the ignition and all electrical equip-
ment.
> Open the hood > page 222.
> Press the release lever on the positive terminal
and fold the cover upward > fig. 171.
> Clamp the charger terminal clamps to the jump
start pins according to the instructions. (Pin un-
der the cover = “positive”).
> Insert the power cable for the charging device
into the socket and switch the device on.
> At the end of the charging process, switch the
charger off and pull the power cable out of the
socket.
> Remove the charging device terminal clamps.
> Close the cover on the positive terminal.
> Close the hood > page 222.

Z\ WARNING
— Never connect the charging cable directly to
your vehicle battery. Only use the connec-
tions in the engine compartment
=> page 232.

232

— A highly explosive mixture of gases can form
when charging batteries. Only charge the
battery in well-ventilated areas.
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). Do not charge or
use a frozen or thawed battery. If ice forms,
the battery housing can crack and battery
electrolyte can leak out, which increases the
risk of an explosion and chemical burns.
Contact an authorized Audi dealer or author-
ized Audi Service Facility for more informa-
tion.
— Do not connect or disconnect the charging
cable while charging because this increases
the risk of an explosion.

G) Tips
Read all of the manufacturer's instructions
for the charger before charging the battery.
Windshield washer
system

B8W-0125



Fig. 172 Engine compartment: washer fluid reservoir cap
Follow the safety precautions > page 221, Gener-
al information.
The windshield washer fluid reservoir © contains
the cleaning solution for the windshield and the
headlight washer system > fig. 172, > page 223.
The reservoir capacity can be found in
=> page 284.
To reduce the risk of lime scale deposits on the
spray nozzles, use clean water with low amounts
of calcium. Always add window cleaner to the wa-
ter. When the outside temperatures are cold, an
anti-freezing agent should be added to the water
so that it does not freeze.

8W7012721BA
Checking and Filling

Messages
g Please add washer fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched off.
@ Note
— The concentration of anti-freezing agent
must be adjusted to the vehicle operating
conditions and the climate. A concentration
that is too high can lead to vehicle damage.
— Never add radiator anti-freeze or other addi-
tives to the washer fluid.
— Do not use a glass cleaner that contains
paint solvents, because this could damage
the paint.
Service interval display
The service interval display detects when your ve-
hicle is due for service.
The service interval display works in two stages:
— Inspection or oil change reminder: after driv-
ing a certain distance, a message appears in the
instrument cluster display each time the igni-
tion is switched on or off. The remaining dis-
tance or time is displayed briefly.
— Inspection or oil change due: if your vehicle
has reached an inspection or oil change interval
or both intervals at the same time, the mes-
sage Inspection due! or Oil change due! or Oil
change and inspection due! will appear briefly
after switching the ignition on or off.
Checking service intervals
You can check the remaining distance or time un-
til the next oil change or next inspection in the
Infotainment system.
Select on the home screen: VEHICLE > Settings
& Service > Service intervals.
Resetting the indicator
An authorized Audi dealer or authorized Audi
Service Facility will reset the service interval dis-
play after performing service.
If you have changed the oil yourself, you must re-
set the oil change interval.
Select on the home screen: VEHICLE > Settings
& Service > Service intervals > Reset oil change
interval.
@) Note
— Only reset the oil change indicator if the oil
was changed.
— Following the service intervals is critical to
maintaining the service life and value of
your vehicle, especially the engine. Even if
the mileage on the vehicle is low, do not ex-
ceed the time for the next service.
233

Emergency assistance


— Normal summer or winter tires must not be

mounted on the compact spare wheel rim.

@) Note
Secure the space-saving spare tire in the spare
tire well using the handwheel in order to re-
duce the risk of damage to other components.
Jump starting
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.
If the engine does not start because the vehicle
battery is drained, you can jump start your vehi-
cle using another vehicle. Jump start cables are
needed to do this.
Both vehicle batteries must have 12 V nominal
voltage. The voltage capacity (Ah) of the vehicle
battery that is giving power must not be less
than the capacity of the drained vehicle battery.
Jump start cable
Only use a jump start cable with a large enough
diameter. Note the manufacturer's specifica-
tions.
Only use a jump start cable with insulated termi-
nal clamps.
Positive cable - usually red.
Negative cable - usually black.

Z\ WARNING
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). If the vehicle bat-
tery is frozen, it must be thawed before con-
necting the jump start cables. If it is not,
the risk of an explosion and chemical burns
increases. After jump starting the vehicle,
drive to an authorized Audi dealer or author-
ized Audi Service Facility immediately to
have the vehicle battery checked.
— Read the warnings when working in the en-
gine compartment > page 221.

266
— Handling the jump start cables incorrectly
may cause the vehicle battery to explode
and lead to serious injuries.
C) Note
Jump start cables can cause considerable
damage to the vehicle electrical system if
they are connected incorrectly.
G) Tips
— There must be no contact between the
vehicles, or else voltage could flow when
connecting the positive terminal and drain
the vehicle battery of the vehicle providing
the jump start.
— The drained vehicle battery must be con-
nected correctly to the electrical system.

— Switch off electrical equipment that is not
needed.
Both jump start cables must be connected in the
correct order.

Fig. 187 Engine compartment: connectors for jump start
cables or a charger



Fig. 188 Engine compartment: connectors for jump start
cables or a charger

8W7012721BA
Fuses and bulbs

@) Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as possible by an authorized
Audi dealer or authorized Audi Service Facili-
it y.
G@) Tips
— The following table does not list fuse loca-
tions that are not used.
— Some of the equipment listed in the follow-
ing tables applies only to certain model ver-
sions or certain optional equipment.

Fig. 192 Driver's footwell (left-hand drive vehicle): fuse
panel with plastic clip
3
=f
= & a

x
Ss $ 2 8

Fig. 193 Front passenger's footwell (right-hand drive vehi-
cle): fuse panel with plastic clip


) (brown)
No. | Equipment

2 |Engine components

Exhaust doors, fuel injectors, radiator in-
let, crankcase housing heating

Vacuum pump, hot water pump, NOx sen-
4 |sor, particulate sensor, biodiesel sensor,
exhaust doors

Brake light sensor

6 | Engine valves, camshaft adjustment

Heated oxygen sensors, mass airflow sen-
sor, water pump

Water pump, high pressure pump, high
8 |pressure regulator valve, temperature
valve, engine mount

9 |Hot water pump, engine relay

10 | Oil pressure sensor, oil temperature sensor

Clutch pedal position sensor, engine start,
water pump
i

12 | Engine valves, engine mount

13 | Radiator fan


14 | Fuel injectors, engine control module

271

Index

Driving programs « = sscses x « soins wo soasmes © w vee 140
Driving through water...............005 112
DIVING CINe’s s « ees 5 e com s ean « pee a so 15
Driving tips
Driving through water................. 112
Efficient driving.............00- eee ee 107
Uphilland downhill................... 112
DFiVING Up Hills: < » cams zs saws to eee eo eee 112
Dust filter
refer to Pollutant filter................. 95
DyNamMie Steering « zeny + v sews s wrens + pees 115
E
E-mail
MessageOptionSten so sis 6 2 ames so eeu o 174
SettingS 0.6... cece eee eee eee 174
EDL
refer to Electronic Differential Lock...... 116
EDR
Event Data Recorder...............0.. 275
Efficiency assist.........2....02-000 ee 131
Electrical system. .........-. cee eee eee 229
Electromechanical parking brake......... 110
Electronic Differential Lock.............. Liz
ElectronicimmMobiliZetivcn. s & scsi av areas 6 ease 34
Electronic Stabilization Control........... 116
Embedded. SIM ard « csies ss sss sc cae sve 177
Emergency assistance...............-0. 260
Emergency braking function............. 111
Emergency call..............2200. 172,181
Emergency flashers.............2.-.000- 57
Emergency mode..............--00000- 105
Emergency operation
DOOrs 0... eee ee 32
Fueltillerdoor'ss + say « s nome o < ome a ¢ ae 220
Luggage compartment lid............... 40
Panoramic glass roof.............000005 43
Emissions control system...........005- 220
ERErQy CONSUMES! . «servis oo scesnce © enateny # ae 15
Energy Management’. « scisie + «ssw © ieee a» 107
Engine
Breakingin........... cee ee eee eee eee 106
GOOlANt sxe: 5 = gems x eee 2 s eeeE Ee EE 227
EmergencyStop's « « swsis «0 case oe rene & oe 100
Jump starting....................00. 266
288
Start/Stop system © cw... ese ve cee ee 107
Starting/stopping..............ee eee 100
Engine compartment
Opening and closing the hood.......... 222
OVEIVIEW's sees oo sees oo ees on eo @ 2 oe 223
Safety precautions............ 0. eee eee 221
Engine oil
Adding ......... 0. cece eee eee eee 223
CHANGING as = « cows « « cows a a news a x caw 2 226
Checking oil-level).... «cscs as west ao esoowse a 223
Consumption ...........0.0-.0 eee eee 223
Indicator light’: » wces «eos ss sews ee rows 224
Replacement interval................. 233
Temperature display................005 14
Engine sound
Audi drive select..................0.. 114
Engine Start/Stop mode
refer to Start/Stop system............. 107
Efigine Startisystem «in : seem es news & exe 101
Engine stop
refer to Start/Stop system............. 107
Entry/exit lightinGjas « « seus « « sayes « s meas a 2 Sf
Etitity ASSIStAnICE’s s 2 ews 5 2 eee § x epee a eRe 69
also refer to Exit assistance............. 69
also refer to Seats...... 0.0.0. cee eee 69
Environment
Unleaded gasoline............ eee eee 217
ESC Sport... 0.0... cece eee eee eee 118
eSIM
refer to Embedded SIM card............ 177
Event Data Recorder (EDR).............. 275
Exit assistance... 2.2... 60.0.0. cece eee ee 69
Exit WaPOiAGp esse + « sowie 9 0 conse +» eneieue © 8 arene IS2
EXteriOnantenina « was: x + wesw » x nse os canes 167
Exterior lig hitingiecs + + smwas % « somes w 2 amvane «0 see 54
Exteri@r MIPfOPS scsi = see = o ise 2 wom 2 2 60
Folding settings................00 ee eee 31
External voice operation..............-4. 25
F
Factory default settings
Multi Media Interface................. 214
Fast forwarding and rewinding (media files) . 204
Fast forwarding (media files)............ 204
FaStTOutels «cna « o anc © 6 ews +o airs © we 184