2020 AUDI A4 hood open

8W1012721BB
Checking and Filling

— Only refill with new coolant.
— Radiator sealant must not be mixed with
the coolant.
— Due to the risk of engine damage, the cool-
ing system should only be refilled by an au-
thorized Audi dealer or authorized Audi
Service Facility. An authorized Audi dealer or
authorized Audi Service Facility can also pro-
vide you with important information about
the recommended coolant additive.


RAZ-0540


MIN

Fig. 164 Engine compartment - coolant expansion tank: @
cover; (2) markings
Follow the safety precautions > page 214, Gener-
al information.
Checking the coolant level
> Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood > page 215.
The coolant expansion tank for some engines is
located in the water drip tray under a cover. If
necessary, remove the cover that is located under
the windshield wiper on the front passenger's
side.
> Check the coolant level in the coolant expan-
sion tank > page 216, fig. 162 using the outer
markings (2) > fig. 164. The coolant level must
be between the markings (2) when the engine is
cold. When the engine is warm it can be slight-
ly above the upper marking.
>» Applies to: vehicles with 6-cylinder engine:
There is a float located in the coolant expansion
tank. Read the coolant level using the coolant
level float. When the engine is cold, the float
must be located between the MIN marking and
the edge of the filler opening on the coolant ex-
pansion tank.
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion tank >(@).
If you must add coolant, use a mixture of water
and coolant additive. Mixing the coolant additive
with distilled water is recommended.
> Allow the engine to cool.
>» Place a large, thick towel on the coolant expan-
sion tank cap.
> Push the release button @) © fig. 164 on the
cap and carefully turn it to the left until you
feel resistance > /\.
> Push the release button again and remove the
cap completely.
> Add coolant in the correct mixture ratio
=> page 220 up to the MAX marking. Or, in
vehicles with a 6-cylinder gasoline engine, the
float must be located between the MIN mark-
ing and the edge of the filler opening on the
coolant expansion tank.
> Make sure that the fluid level remains stable.
Add more coolant if necessary.
> Vehicles with 6-cylinder engine: if necessary,
press the float into the coolant expansion tank
using the cover.
> Turn the cap to the right to tighten it until you
feel resistance a second time.
Coolant loss usually indicates that there is a leak.
Immediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, coolant loss can re-
sult from the coolant boiling due overheating
and then being forced out of the cooling system.

Z\ WARNING
— 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 214, General informa-
tion.
— Never open the hood if you can see or hear
steam or coolant escaping from the engine >

221

8W1012721BB
Checking and Filling

a ing the battery

Fig. 166 Engine compartment: connectors for a charger or
jump start cables
Note the safety precautions > page 214, General
information, > A\ in Battery general informa-
tion on page 223 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 215.
> Press the release lever on the positive terminal
and fold the cover upward > fig. 166.
> 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 215.

ZX WARNING
— Never connect the charging cable directly to
your vehicle battery. Only use the connec-
tions in the engine compartment
=> page 225.

— 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. 167 Engine compartment: washer fluid reservoir cap
Follow the safety precautions > page 214, Gener-
al information.
The windshield washer fluid reservoir © contains
the cleaning solution for the windshield and the
headlight washer system > fig. 167, > page 216.
The reservoir capacity can be found in
=> page 278.
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.
225
>

Index


Driving:down HWS: sccies 2 vives ev eee = 2 eevee 104
Driving programms « «sisi. & 2 owes a 0 wasn 2 2 ime 133
Driving through water...............005 105
DIIVIGSCUTISss « = eee x & eee « nanewE s eRe a se LS
Driving tips
Driving through water................- 105
Efficient driving
Offroad driving....
Uphilland downhill. « & ssceiie ee cvawise wo sway 104
Driving up hills:; ; « s0«s : 2 sees se eee = 2 es 104
Dust filter
refer to Pollutant filter..............0.. 87
DYNAMISStEETING « wes ¢ v mews 2 exes 6 were 107
E
E-mail
Message:Optiomstan. + + ssc a 6 seca w 6 ossen 167
Settings........ 0.0... cece eee eee 167
EDL
refer to Electronic Differential Lock...... 109
EDR
Event Data Recorder iis ss ccs scana es 269
Efficiency BSSisties « a cawy xv wows vv maw a es 124
Electrical SySte@il's s s sees ¢ 2 exes i rama i re 222
Electromechanical parking brake......... 102
Electronic Differential Lock.............. 109
Electronic immobilizer.............00000. 34
Electronic Stabilization Control........... 109
Embedded SIM ear « essicscs os soci v a ssteine wo 0 170
Emergency assistance wcscs os caw s eeea a eo 253
Emergency braking function............. 103
Emergency Callies s & css s ¢ weiss s nae 165,174
Emergency flashers...............000005 50
Emergency mode......... 02. eee eee 97
Emergency operation
DOOIS « snay ¢ © agay ae eee aH eee 2 He gE 32
Fuelsilleridoorin: « suiccs ov saws x aracne <0 ans 213
Luggage compartment lid............... 40
Panoramic glass roof................--. 44
Sliding/tilting SUNTOOF wos... vee se eon ss 43
Emissions control system..............- 213
Energy CONSUMEIS:: « s svse so ee ee Hewes ewe 15
Energy management.................085 99
282

Engine
Breakingin....... eee eee eee eee eee ee 98
GOOlaNE 2 snow 4 « meay ¢ e meme 2 x eee d RoE 220
Emiengeney tpt 3 seas vx wns o siemens a ¥ a 92
Jump starting. ......... 0. cee eee eee 260
Start/Stop system............--000 eee 99
Starting/Stopping wc « «esse se enews wees 92
Engine compartment
Opening and closing the hood.......... 215
Overview... .... 2. eee eee eee 216
Safety precautions..............0e00es 214
Engine oil
AGING o cweses oo eeeirece a emeners aw onemeiee vw eeSoes
Changing
Checking oil level... sca ss yeen ee reuse: 216
CONSUMPTION bss ¢ & saves & o ceawers © 8 ere 6 0 ws 216
Indicator light..............00.000 00 217
Replacement interval................. 226
Temperature display................... 14
Engine sound
Audi drive select.............002-.00. 106
Engine Start/Stop mode
refer to Start/Stop system............55 99
Engine start system.............000 000s 93
Engine stop
refer to Start/Stop system.............. 99
Entry/exit lighting..............0.-.. eee 50
Entry assistance ....... cece eee eee eee ee 62
also refer to Exit assistance............. 62
Environment
Unleaded gasoline................200. 210
ESC Offfad sec so seus 5 vere so eae ov os 110
ESC Sport.............0 0.00.0 .000000. 110
eSIM
refer to Embedded SIM card............ 170
Event Data Recorder (EDR).............. 269
Exit assistance... 2... eee eee eee eee
Exit warning..............0..0.0000005
Exterior antenna...............0..000.
Exterior lighting.................022-00
EXCe@niO MIPKONS secs ws wasos © w cess vem a OY
Folding settings

External voice operation................. 25

MUEM Gece os secvns © v cotuess i v sumawns wa axenees +o osee 26
MYAUGL 5 & scien 2 6 seesen 2 8 view © seamen w @ ine 27,170
myAudi navigation................. 176,179
MYAUGI USERS « seus 5 & eee 5 e Hees eee eae 27
N
Natural leather care and cleaning......... 250
Navigation..................0....000. 176
Better roOut@ cis «nies se sew ¢ wae s 2 wees 185
Calling. ..... 2. ee eee eee eee ee 179
Changing the scale................-0. 179
also referto Map . seca ss eeen se eee sees 180
Navigation database
Version information.................4 208
Navigation (instrument cluster) .......... 182
NG « suse 2 ¢ cues 2 5 RRR Fo OE go eee & Roe 78
NHTSA « seuss 2 = eae ¢ sete ¢ v omee © ere 2 274
Notification center...........0.ecee eae 20
Oo
Octane rating (gasoline)................ 210
Odometer... ... eee eee eee eee 14
RESCUE Grae: 9 ¢ ewes 9 2 omew 5 BeeH 8 e weRE eS 14
Office address
refer to Business address.............. 183
Offroad
refer to Offroad driving « «cess 6 cca x 6 ee 104
Offroad ArIVING six @ w seesee os sues ws inareen 2 0 ave 104
OFFABUTEON) » esc & & cosa oo oem @ @ ete © o 250 88
Oil
refer to. Engine ils « «sien» wou 2 wen a 216
On-boardicomputer's « « sss: sv cues 6 v waown ov 15
On Board Diagnostic System (OBD)... 213, 269
Online map
refer to Satellite map............0.00 183
Onlimetradio « sssis s+ sssvv ww anmenee w 4 amore oo 8 191
also refer to Online radio.......... 191, 192
Online roadside assistance.............. 175
Online services
refer toconnect.......-.e eee eee eee 169
Online system update.................. 207
Online traffic information............... 185
OPONiN G's = sess eo cusses 2 x cesves oo eHaTED @ & sae 30
Automatic luggage compartment lid...... 38
Convenience opening...............0... 42
286
Fueltiller doors: 2 ssuin a x sess « v omance w 2 a 211
HOOd... eee eee eee 215
Luggage compartment lid............... 37
Luggage compartment lid with foot motion . 39
Panoramic glass roof.............000005 44
Sliding/tilting sunroof...............0-. 43
Sunshade (POOP) i so wei oe wwe oo ews owe 44
Windows ..... 2.0.0... c cece eee eee eee 42
Opening and closing
refer to Unlocking and locking........ 30, 35
Operating
Head-up-displayies « = wows s 2 worse ewes gee 23
Instrumenticlusten « esesore 2 scone oo smascwe a vo 12
Multifunction steering wheel............ 12
Multi Media Interface............... 16,19
TEXEINP Utes 3s snie @ vem @ & oraam a © recom wv 21
Touch display...........-..0 eee eee eee 16
Voice recognition system............... 24
Optional equipment number............. 277
Options
Medidian + y eee ae yews 2 em sd REE Ez WOR 201
RAGIO ssasoes a cron: w x omavine x x ceowawe v5 sma Ho 193
Overview (COCK pit) wi oo swcsc 2 5 vse sa weeen 2 we 6
P
Paint COde@iwe « » sayee » x neue x x cause 4 8 ce 277
Paintidamag@ws ¢ 2 maw x 2 ames + 8 Gomme RE 249
PANIC BGUttolitas ¢ « savas ¢ x sews ¢ o eeu do eee x 34
Panic function... .. 2... cee eee eee eee ee 34
Panoramic glass roof................200. 44
Convenience opening and closing......... 42
Emergency closing ws + «ewe es esre es omen 44
Quick
Opening........ cee eee eee eee ee 44
Park assist... 0.2... eee eee eee eee 155
ee 147
Adjusting the volume................. 148
Automatic activation.................. 147
Cleaning sensors/camera.............- 248
Park assist... 2... eee eee eee 155
Parking aid PlUS: « < sees 2 seems ey eee 2 os 147
Parking space search.............-..4.. 153
Peripheral cameras...........--.000-5 149
Rearview cameta sss ¢ s geen sv eee s ves 149
Parking and maneuvering..............- 147
Parking brake
refer to Electromechanical parking brake. 102
Parking
liQhts «