2021 VOLKSWAGEN ID.4 brake fluid

Brake fluid specification
V
olkswagen has developed a brake fluid that
has been optimised for the brake system in
the vehicle. To ensure the best possible oper-
ation of the brake system, Volkswagen ex-
pressly recommends the use of brake fluid
compliant with VW standard 501 14.
Before using a particular brake fluid, check
that the specifications printed on the con-
tainer correspond to the vehicle require-
ments.
Brake fluid that is compliant with VW stand-
ard 501 14 is available from Volkswagen
dealerships.
If this brake fluid is not available and it is
necessary to use another high-quality brake
fluid instead, brake fluid that is compliant
with DIN ISO 4925 or US standard
FMVSS 116 DOT 4 CLASS 6 can be used.
Not all brake fluids that are compliant with
DIN ISO 4925 or US standard FMVSS 116
DOT 4 CLASS 6 have the same chemical com-
position. Some of these brake fluids may con-
tain chemicals that can damage or destroy
brake system components over time.
Volkswagen therefore recommends the use
of brake fluid that is compliant with
VW standard 501 14 to ensure sustained op-
timal operation of the brake system.
Brake fluid that is compliant with VW stand-
ard 501 14 fulfils the requirements of
DIN ISO 4925 or US standard
FMVSS 116 DOT 4 CLASS 6.
Brake fluid level
The brake fluid level must always be between
the MIN and MAX markings on the brake fluid
reservoir

x
The refilled brake fluid must be new. NOTICE
Brake fluid that has leaked or been spilt can
damage the v ehicle paintwork, plastic parts
and tyres. Wipe off brake fluid that has
leaked or been spilled immediately from all
parts of the vehicle. Brake fluid can pollute the environ-
ment. Any spilt service fluids must be
cleaned up and disposed of properly. 12-volt vehicle battery
Introduction to the topic
The 12-
volt vehicle battery is a component of
the electrical system and in event of the
high-voltage system failing, supplies the
safety-relevant systems of the vehicle with
energy. In the scope of maintenance work,
the 12-volt vehicle battery is checked and
where required, replaced.
You should only carry out work on the electri-
cal system if you know exactly how to per-
form the required tasks, are aware of the
general safety procedures and have access to
the correct equipment, service fluids and
suitable tools. Failing to carry out work cor-
rectly can cause serious injuries

Battery charge limits
277
Belt retractor 44
Belt status display see Seat belts 37
Belt tension limiter 44
Belt tensioner 44
Disposal 45
Service and disposal 45
Bench seat 97
Bicycle carrier Fitting on the ball coupling 267
Black ice warning 23
Bluetooth 216
Profile 216
Bonnet Closing 312
Display 313
Opening 312
Warning lamp 313
Bonnet space Preparations 311
Safety notes 309
Boot see Luggage compartment 254
Boot lid 84
Closing 88
Closing automatically 88
Driving with an open boot lid 133
Electrically closing 86
Electrically opening 86
Opening 87
Opening automatically 87
Brake Assist system 190
Brake blending 191
Brake energy recuperation (energy recov-
ery) 134
ECO assistance 136
Brake fluid 318
Specification 319
Brake servo 189, 190
Brake support systems 189
ABS 189
BAS 189
EDL 189
ESC 189
TCS 189
XDS 189
Brake system Malfunction 134
Brakes 189
Brake fluid 318Brake fluid level
319
Brake pads 131, 134
Brake support systems 189
Changing the brake fluid 319
Electromechanical brake servo 190
Electronic parking brake 177
Emergency braking function 178
Parking brake 177
Running in brake pads 131
Braking intervention Automatic 182
Damage minimisation 182
Break recommendation Switching on and off 25
Breakdown Making your vehicle safe 66
Breakdown set 348
Check after driving for 10 mi- nutes 351
Contents 349
Inflating the tyre 350
Preparations 350
Sealing the tyre 350
When not to use 348
Buckle-up request see Seat belts 37
Bulb failure see Changing bulbs 295
Button cell Replacing in the vehicle key 74
C
Camera 159
Cameras Add-on parts 363
Damage 363
Repairs 363
Car wash Parking brake 177
Vehicle care 355
Car2X communication 198
Switching on and off 199
System limits 199
Troubleshooting 200
Care see Vehicle care 355
CCS see Cruise control system 145
Central airbag see Airbag system 56
Central locking
Index 39711A012720AB

Retrofitting a towing bracket 272
see Trailer towing
264
Socket 268
Swivelling out the ball coupling 266
Tail light clusters 266
Things to note 270
Towing 270
Trailer stabilisation 271
Trailer coupling see Towing bracket 266
Trailer stabilisation 271
Trailer towing Technical prerequisites 265
Transporting items 254
Bag hook 261
Driving tips 132
Driving with a trailer 270
Driving with an open boot lid 133
Fastening rings 259
Load-through hatch 261
Loading a trailer 269
Loading roof carriers 263
Luggage net 260
Roof carrier 262
Securing roof carriers 263
Stowing loads 254
Stowing luggage 254
Trailer towing 264
Travel Assist 168
Displays 169
Switching on and off 170
Troubleshooting 170
Travel mode 110
Things to note 105
Tread depth 334
Tread wear indicators 334
Trim parts Cleaning and care 359
Trim strips Cleaning and care 359
Trip recorder 29
Troubleshooting Activating functions 207
Adaptive chassis control (DCC) 144
Adaptive Cruise Control (ACC) 156
Air conditioning system 126
Airbag system 50
Airbag system deactivated 50
Airbag triggering 82
Alternator warning lamp 323
Automatic locking 82Boot lid
89
Brake energy recuperation fault 142
Brake fluid level too low 319
Brake servo 191
Brake support systems 191
Brake system 134
Car2X communication 200
Central locking 75
Coolant indicator lamp 318
Coolant temperature display 318
Coolant warning lamp 318
Cooling system: engine coolant level too low 318
Cooling system: engine coolant temper- ature too high 318
Cooling system: fault in the coolant cir- cuit 318
Cruise control system (CCS) 147
Deactivation of the drive is immi- nent 136
Driving instructions 134
Driving profile selection 144
Easy Open 89
eCall emergency call system fault 71
eCall Emergency System restric- ted 71
Electric drive 139
Electrical system overheated 142
Electronic engine sound 140
Electronic parking brake 178
Electronic parking brake does not switch itself off 178
Electronic parking brake does not switch itself off completely 178
Electronic parking brake fault 178
Emergency Assist 172
Emergency start function 140
Emergency switch-off 140
ESC fault 192
Exhaustive discharge (high-voltage bat- tery) 285
Fault in the high-voltage system 285
Front passenger front airbag deactiva- ted 50
Front passenger front airbag switched on 50
Heating and fresh air system 126
High-voltage battery is empty 285
Holding force of the electronic parking brake is insufficient 178
Ignition lock 139
Immobiliser 139, 140
Index 41111A012720AB

Indicator lamp
82
Indicator lamp in the vehicle key 75
Keyless Access 76, 82, 140
Lane change system 174
Lane keeping system (Lane As- sist) 167
Lights 110
Low charge level 285
Noises of the electronic parking brake 178
One-touch opening and closing 91
Parking system cameras 183
Parking system sensors 183
Parking systems 183
Predictive cruise control 159
Proactive occupant protection sys- tem 47
Rain and light sensor 111, 115
Reduced power 137
Roll-back function 91
Sensors 77
Speed limiter 148
Speed limiter with predictive con- trol 150
Starter button 139, 140
Steering 143
Steering column 143
Towing bracket 273
Trailer turn signals 111
Travel Assist 170
Turn signals 77, 82, 89, 110
Tyre monitoring system 327
Tyre Pressure Loss Indicator 327
Unit of temperature 126
Vehicle battery (12-volt) is not charg- ed 323
Vehicle battery (12-volt) warning lamp 323
Vehicle battery (12-Volt): 12-volt battery diagnosis 324
Vehicle battery (12-Volt): battery diag- nosis 324
Vehicle battery (12-Volt): checking the 12- volt battery 324
Vehicle battery (12-volt): low charge lev- el 324
Vehicle battery (12-Volt): replacing the 12-
volt battery 324
Vehicle battery (12-volt): vehicle will not restart 323
Vehicle key not recognised 140
Vehicle lighting 111Vehicle operation not possible 136
Vision
114
Voice control 230
Washer fluid level 114
Water under the vehicle 127
Window condensation 126
Wipers 114
Type plate 389
Tyre damage 334
Tyre load 338
Tyre Mobility System see Breakdown set 348
Tyre monitoring system 325
Indicator lamp 327
Malfunction 327
Tyre Pressure Loss Indicator 325
Tyre pressure 332
Checking 333
Comfort tyre pressure 333
Tyre Pressure Loss Indicator 325
Replacing tyres 330
Tyre repair set see Breakdown set 348
Tyre wear 334
Tyres see Wheels and tyres 328
Tyres with directional tread pattern 338
U
Unlocking From the inside 79
Updating the software 196
USB port 215
User administration 205
Using the telephone 251
V
V2X communication Traffic hazard alert 199
Vanity mirrors 118
Vehicle Lending or selling 202
Locking and unlocking from the in- side 79
Making safe in the event of break- down 66
Parking on a downhill gradient 176
Parking on an uphill gradient 176
Recycling 373
Returning 373
412 Index

Brake system
191
Electronic parking brake 178
Overview 15
Warning lamps Position selection 142
Seat belts 37
Steering column lock 143
Warning messages when leaving the vehi-
cle 138
Warning signs High-voltage battery 274
Warning triangle 68
Warranty General 366
High-voltage battery 366
Paint and body 366
Washer fluid Checking 314
Refilling 314
Washing the vehicle Sensors 184
We Connect Start 200
Interference 203
Legal requirements 202
We Upgrade 206
Weight 387, 391, 392
What to do after an accident Checklist 67
What to do in the event of a fire Checklist 68
Wheel bolts 343, 344
Caps 342
Tightening torque 345
Wheel change Changing a wheel 347
Wheel lock see Anti-theft wheel bolts 344
Wheel rims 331
Bolted rim rings 331
Bolted trim elements 331
Identification 331
Wheels and tyres 328
All-year tyres 339
Asymmetrical tyres 338
Avoiding damage 329
Changing a wheel 343
Embedded foreign bodies 334
Handling wheels and tyres 329
Identification 336
Low-profile tyres 338
New tyres 330Old tyres
329
Replacing tyres 330
Rotating wheels 329
Running in 330
Snow chains 340
Speed index 338
Storing tyres 330
Technical data 336
Tread depth 334
Tread wear indicators 334
Tyre damage 334
Tyre lettering 336
Tyre load 338
Tyre pressure 332
Tyre type 336
Tyre wear 334
Tyres with directional tread pat- tern 338
Wheel rims 331
Winter tyres 339
Wi-Fi 208
Client 210
Hotspot 208
NFC 209
QR-Code 209
Quick connection 209
Settings 210
Wi-Fi hotspot 207
Windows 89
Buttons 89
Childproof lock 81
Cleaning and care 359
Closing 89
Convenience closing 90
Convenience opening 90
Defrosting (air conditioning sys- tem) 121
Malfunction 89
Opening 89
Roll-back function 91
Windscreen Repairing (note) 363
Repairing stone chips (note) 363
Replacing (note) 363
Windscreen heating 125
Windscreen heating see Air conditioning system 121
Windshield see Windscreen 125, 363
Winter conditions Snow chains 340
414 Index