2021 AUDI Q2 engine coolant

Checking and topping up fluids
Coolant additive
The coolant additive contains anti-freeze and cor­
rosion protection agent. Only use one of the
fol­

lowing coolant additives. It is possible to mix
these additives.
Topping up coolant
Coolant additive
G13
G12++
Specification

TL774J

TL 774
G

The amount of coolant additive which needs to
be mixed with the water depends on the temper­
atures to be expected in the winter season. If the
anti-freeze concentration is too Low, the coolant
can freeze and cause engine damage.
Hot regions
Cold regions
Coolant
additive

min.
40%
max. 45 %

min.
50%
max. 55 %
Frost protec­
tion

min.-25°C

max. -40 °C

(T)
CAUTION
- Have your qualified workshop check the
cooling system before the winter season to
make sure that the anti-freeze concentra­
tion is adequate for the conditions to be ex­

pected.
This applies particularly if
you
drive
into a colder climate zone.
- To prevent damage to the engine, do not
use a different type of anti-freeze additive if
the approved type of additive is not availa­

ble.
In this case use only water and bring
the coolant concentration back up to the
correct level as soon as possible by putting
in the specified additive.
- Always top up with fresh, unused coolant.
- Radiator sealants must not be added to the
coolant.

Fig.
248 Engine compartment: Markings on coolant ex­
pansion tank
Please refer to the safety notes
^page
295,

Working on components in the engine compart­
ment.
Checking coolant level

•
Park the vehicle on a level surface.

•
Switch off the ignition.

•
Read off the coolant level on the coolant ex­
pansion tank
^>Fig.
248. When the engine is

cold,
the coolant level should be between the
marks. When the engine is warm, it may be
slightly above the top mark.
Topping up coolant
Important: The coolant expansion tank must not
be empty
•=>([).

•
Wait for the engine to cool down.

•
Cover the cap on the expansion tank with a

cloth,
and carefully unscrew the cap
anti-clock­

wise
<=>
/K.

*-
Add coolant in the correct concentration

tapage
299 up to the top mark.

•
You should make sure that the fluid level re­
mains stable. If necessary, add more coolant.

•
Screw the cap on again tightly.
Any loss of coolant normally indicates a Leak in
the cooling system. Drive to a qualified workshop
without delay and have the cooling system

checked.
If there are no leaks in the system, a
loss of coolant can only occur if the coolant boils
and is forced out of the system as a result of
overheating.
300

Checking and topping up fluids
A WARNING

CO

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- The cooling system is under pressure. Do
not unscrew the cap on the expansion tank
when the engine is hot: you could be
scal­

ded by escaping steam.
- The coolant and coolant additive can be a
health hazard. Store the coolant additive in
the original container in a safe place out of
reach of children - risk of poisoning.
- When working in the engine compartment
be aware that the radiator fan may start
running suddenly, even if the ignition is
switched off- risk of injury!
Brake fluid
© CAUTION
Do not add coolant if the expansion tank is
empty. Air could have got into the cooling
system - risk of engine damage! In this case,
do NOT drive on. Obtain professional assis­

tance.

- Have your qualified workshop check the
cooling system before the winter season to
make sure that the anti-freeze concentra­
tion is adequate for the conditions to be ex­

pected.
This applies particularly if
you
drive
into a colder climate zone.
-To prevent damage to the engine, do not
use a different type of anti-freeze additive if
the approved type of additive is not availa­

ble.
In this case use only water and bring
the coolant concentration back up to the
correct level as soon as possible by putting
in the specified additive.
- Always top up with fresh, unused coolant.
- Radiator sealants must not be added to the
coolant.

ëB

k
DOT
4
A

•9
o
o
:>
li-

Fig.
249 Engine compartment: Cap of brake fluid reservoir
Please refer to the safety notes
^page
295,
Working on components in the engine compart­
ment.
Checking brake fluid level
Read off the brake fluid level on the brake fluid
reservoir
^>page
297, Fig. 245. The brake fluid
level must be between the MIN and MAX marks

<=>A.

The brake fluid
level
is also automatically moni­

tored.

In right-hand drive vehicles the brake fluid reser­
voir is on the other side of the engine compart­
ment.
Changing brake fluid
Have the brake fluid changed regularly by a quali­
fied workshop.
WARNING
-If the brake fluid Level is under the MIN
mark, the effectiveness of the brakes and
therefore the safety of the vehicle may be
impaired - risk of accident! Do not drive on.
Obtain professional assistance.
- Heavy use of the brakes may cause a vapour
lock if old brake fluid is left in the system.
This would seriously impair the effective­
ness of the brakes and the safety of the car
- risk of accident!
© CAUTION
- If the brake fluid level is above the MAX
mark, brake fluid may escape via the cap on •
301

Fuses and bulbs
Fuses in engine compartment

Fig.
278 Engine compartment: Fuse layout

No.

Fl

F2
F3
F4

F5

F6
F7

F8

F9
F10

Fll

F12
F13
F15
F16
Electrical equipment
Electronic stabilisation control (ESC)
Electronic stabilisation control (ESC)
Engine control unit
Engine components, engine cooling, sup­
plementary heater relay coils (1+4+7),
secondary air pump relay
Engine components, tank system (diesel)
Brake Light sensor
Engine components, coolant pumps, tank
system (petrol)
Lambda probe
Engine components, exhaust flap, control
unit for automatic glow period (relay 6)
Fuel control unit, fuel pump
Supplementary heater heating rod 2
Supplementary heater heating rod 3
Automatic gearbox
Horn
Ignition coil (relay
8)

Electronic stabilisation control (ESC), en­
gine control unit (relay 5)

No.

F18
F19
F20
F22
F23
F24
F31
F33
Electrical equipment
Battery monitoring, gateway
Windscreen wipers
Anti-theft alarm system
Terminal 50, diagnostics, engine control
unit
Starter
Supplementary heater heating rod 1
Vacuum pump
Automatic gearbox, gearbox oil pump
Bulbs
General notes
Changing bulbs requires a certain degree of
practical
skill.

LED*
lights are maintenance-free and cannot be

changed.
For repairs, please contact a qualified
workshop.
If
you
decide to change bulbs in the engine com­
partment yourself, be aware of the safety risks
involved
*
A in Working on components in the
engine compartment on page 295.
WARNING
- Take particular care when working on com­
ponents in the engine compartment if the
engine is warm - risk of burns!
- Bulbs are sensitive to pressure. The glass
can break when you touch the bulb, causing
injury.
- When changing bulbs, please take care not
to injure yourself on sharp edges, in particu­
lar on the headlight housing.
© CAUTION
-Always switch off the ignition before carry­
ing out any work on the electrical system -
danger of short circuiting!
- Switch off the Lights or parking lights before
you change a bulb.
- Take good care to avoid damaging any com­
ponents.
334

Index

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Emergency braking function 82
New brake pads 147
Browser
see Media centre 244
Bulb failure
Changing bulbs 334

Bulbs,
changing 334
Buttons
Assigning functions (multi-function steering
wheel) 17
Multi-function steering wheel 15, 18
Operating unit (MMI) 152
C
Cables (USB adapter/AUX adapter) 240
Calling up media 243

Call
list 179

CalL
options 187
Capacities
AdBlue 292

Fuel
tank 343
Washer fluid reservoir 343
Caps for wheel bolts, removing 321
Car care
Washing/cleaning 312
Care
see Cleaning 312
Car phone
172,188

Catalytic converter 295
CD drive 236
Central locking system 37
Cetane number (diesel) 289
Changing settings for additional dispLay .... 19
Charging
see Power sources 60
Charging battery 242
Charging battery (mobile devices) 241
Chassis number 342
Child lock 46
DVD 246
Child seats 267
Fitting 270
Cigarette Lighter 60
Classic view 17
Cleaning 312
Cleaning/de-icing windows 314
Cleaning/treating leather 315
Cleaning Alcantara 315
Cleaning carbon parts 314, 315
Cleaning controls and displays 314
Cleaning fabrics 315
Cleaning leatherette 315
Cleaning plastic parts 314
Closing
Panorama sun roof 48
Windows 46
see also Unlocking/locking 39, 40
Closing/opening
see Unlocking/locking 39, 40
Coasting mode 91
Coat hooks 61
Colour code 342
Coming home/leaving home
see Entry/exit lights 51
Commands (speech dialogue system) 164
Compact temporary spare wheel 324
Compartments 61
Conference calls 180
Connection manager 257
Connections
see Media 234, 243
Consumption (fuel) 19, 20, 342
Contacts 185
From another directory 258
Importing/exporting 187
Memory capacity 189
Storing as a destination
216

Control buttons (MMI operation) 154
Controls and displays (overview) 10
Control units 150
Convenience key
Manual operation 79
Starting/stopping the engine 76
Unlocking/locking 39
Convenience open/close 47
Cooling mode
Automatic air conditioner 69
Manual air conditioner 67
Cooling system
Anti-freeze 299
Checking coolant level 300
347

Index

Codant temperature
gauge 13
Topping up coolant 300
Cornering light 49
Crosshairs 209, 210
Cruise control system 104
Cup holders 61
Current fuel consumption 19,20
D
Data connection 203
Data protection 205
Date 255
Daytime running lights 49
Deactivating front passenger's airbag 288
DEF
see AdBlue 292
Defrosting (windows)
Automatic air conditioner 70
Heating/ventilation system and manual air
conditioner 67
DEF (instrument cluster) 14
Deluxe automatic air conditioner
see Air conditioner (automatic) 66, 69
Demo mode
see Presentation mode 217
Destination from map

Via
MMI touch 210
Via rotary pushbutton 209
Diagnostic connection 150
Dictating

E-mail
183
Text messages 182
Diesel
Diesel particulate filter 295
Fuel 289
Preheating (glow plugs) 74, 76
Diesel engine
Engine oil 297
Diesel Exhaust Fluid (DEF)
see AdBlue 292
Digital rights management 234
Dimensions
Vehicle dimensions 343
Dipped headlights 49
Directional tread (tyres) 324
Directory
see Contacts 185
Display 15
Cleaning 314
Infotainment display 153, 256
Instrument cluster 18
Multi-function steering wheel 15
Variants (MMI) 153
Distance covered 19, 20
Doors
Child lock 46
Courtesy lighting 52
Locking doors manually 41
see also Unlocking/locking 39, 40
Downhill speed control 89
Driver information system 19
Economy tips (analogue instrument cluster) 21
Economy tips (Audi virtual cockpit) 20
Efficiency program 21
Energy consumers (Audi virtual cockpit) .. 20
Gear-change indicator 14
On-board computer (analogue instrument
cluster) 20
On-board computer (Audi virtual cockpit) . 19
Outside temperature display 15
Service interval display 304
Switching between displays 15
View 17
Drives
see Media 234, 243
Drive select
see Audi drive select 131
Driving on right/left 52
Driving through water 72, 85
Driving time 19, 20
Dust filter
see Pollution filter 66
DVD drive (media drives) 235
Dynamic volume control
see System volume 261
E

E-mail
183
E10
see Ethanol (fuel) 289
eco mode (automatic air conditioner) 69
348

Index

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Economical driving 72
Economical route 216
EDL
see Electronic differential lock (EDL) .... 145
Efficiency program 21
ELectrical socket
see Power sources 60
Electric windows 46
Child lock 46
Malfunction 47
Electro-mechanical parking brake 82
Electro-mechanical power steering 148
Electronic differential lock (EDL) 145
Electronic immobiliser 38
Electronic stabilisation control (ESC) 145
Embedded SIM card 191
Emergency assist 126
Emergency braking function 82
Emergency
call,
making 181
Emission controL systems
Catalytic converter 295
Diesel particulate filter 295
Emissions 342
Energy consumers 20
Engine
Coolant 299
Driver messages 77
Jump-starting 326
Power output 344
Preheating (with the button) 76
Preheating (with the key) 74
Start/stop system 79
Starting/stopping (with the button) 76
Starting/stopping (with the key) 74
Engine compartment
Layout 297
Opening/closing bonnet 296
Safety notes 295
Engine oil 297
Checking oil level 298
Consumption 298
Dipstick 297, 298
Oil change intervals 304
Oil change service 297
Service intervals 297
Topping up 298
Entering information
Using MMI touch
155

Using the speller 159
Entertainment drawer 157
Entry
Using MMI touch 155
Entry/exit lights 51
Environmental tips
Leaks 296
Minimising pollution 72
Roof carrier 65
ESC
see Electronic stabilisation control (ESC) . 145
Ethanol (fuel) 289
Event data recorder 150
Extended view 17
Exterior lighting 49
Exterior mirrors 53
Folding in 53
Setting for automatic retraction 41
External speech dialogue system 170
F
Factory settings
Multi Media Interface 256
Fader (sound) 260
Fastening rings 62, 273
Fast forward/rewind (audio/video file) .... 243
Fast route 216
Favourites
Media 246
Navigation 210
Telephone 181
File formats (media drives) 249
Filling the tank 290
Fuel gauge 14
Opening fuel tank flap 290
Releasing tank flap manually 291
Tank capacity 343
Finding entries
see Search function 160, 245
Fire extinguisher 318
First-aid kit 318
Floor mats 272
Floor panel, lowering 62
Fog light(s) 49
349

Index
Technical data 342
Telephone 172
Audi phone box 177
Connecting 173
Dialling a number 179
Options during a call 180
Playing music 237
Settings 187
SIM card 176
Telephone mode 188
Temperature display
Coolant 12
Outside temperature 15
Temperature selection
Automatic air conditioner 69
Heating/ventilation system and manual air
conditioner 67
Tethering 195
Text messages 182
Tightening torque (wheel bolts) 324
Time 255
tiptronic (automatic gearbox) 85,90
TMC/TMCpro
see Traffic information 225
Tools 319
Top tether and ISOFIX (securing child seats) 271
Torque
Engine 344
Wheel bolts 324
Touch pad
see MMI touch 155
Tourist guide
see Travel guide 200
Tow-starting 328
Towing 96
Parking aids 144
Trailer weights 96, 343
Towing away 328
Tow-away protection 42
Towline anchorage 330, 331
TPMS
see Tyres 309
Traction control system (ASR) 145
Traffic announcements
see Traffic programme (TP) 229
Traffic avoidance 217
Traffic information 225, 226
Traffic jam assist 117
Traffic programme (TP) 229
Traffic sign recognition 108
Trailer mode (navigation) 217
Trailer stabilisation 97
Travel guide 200
Treble (sound) 260
Trip recorder, resetting 14
Turning light 49
Turn signals 50
Type plate 342
Tyre Mobility System (tyre repair kit) 319
Tyres 305
Changing 321
Directional tread 324
Inflation pressure 307
Low-profile tyres 309
quattro (four-wheel drive) 148
Repair kit 319
Service life 306
Tyre pressure loss indicator 309
Tyre pressure (towing a trailer) 96
Wear indicator 306
U
Unlocking/locking
By remote control 39
Using the central locking switch 40
With key 41
With the convenience key 39
Updating station List (radio) 231
USB charging socket 60, 242
USB stick
see Audi music interface 240, 241
V
Vehicle
Raising 322
Taking out of service 317
Vehicle data
Identification data 342
Version information 259
VIEW button 15
356