Electrical system

Chapter overview

• Starter, current supply, CCS
  1
• 1 Battery
  1
• 1.1 Fundamentals for batteries
  1
• 1.2 Types of battery
  1
• 1.3 Warning notices and safety regulations
  1
• 1.4 Battery load test
  1
• 2 Checking battery
  2
• 3 Charging battery
  3
• 4 Disconnecting and connecting battery
  4
• 4.1 Models with battery installed in engine compartment
  4
• 5 Removing and installing battery
  8
• 5.1 Models with battery installed in engine compartment
  8
• 5.2 Adapting battery monitor control unit J367
  11
• 6 Starter, vehicles with manual gearbox
  12
• 6.1 Checking starter B
  12
• 6.2 Starter, vehicles with 1.2 l, 77 kW injection engine, manual gearbox MQ200-5F/MQ200-6F
  12
• 6.4 Starter, vehicles with 1.4 l, 90 KW TSI engine and manual gearbox MQ200-6F
  19
• 6.6 Starter, vehicles with 1.8 l, 118 KW TSI engine and manual gearbox MQ200-6F
  28
• 6.8 Starter, vehicles with 2.0 l, 155 KW TSI engine and manual gearbox MQ350-6F
  35
• 6.10 Starter, vehicles with 1.6 l, 77 KW TDI engine and manual gearbox MQ250-5F
  45
• 6.11 Starter, vehicles with 2.0 l 81 KW TDI engine and manual gearbox MQ250-5F
  50
• 6.12 Starter, vehicles with 2.0 l 103 KW TDI engine and manual gearbox MQ350-6F
  54
• 6.13 Starter, vehicles with 2.0 l 125 KW TDI engine and manual gearbox MQ350-6F
  59
• 7 Starter, vehicles with dual clutch gearbox (DSG)
  64
• 8 Starter, vehicles with automatic gearbox
  106
• 9 Alternator
  111
• 9.1 Securing B+ (battery positive) wire to alternator
  111
• 9.2 Checking poly V-belt
  112
• 9.3 Checking alternator C
  112
• 9.4 Alternator, 1.2 l, 77 KW TSI engine
  112
• 9.5 Alternator, 1.4 l, 59 KW injection engine
  116
• 9.6 Alternator, 1.4 l, 90 KW TSI engine
  121
• 9.7 Alternator, 1.4 l, 118 KW TSI engine
  127
• 9.8 Alternator, 1.6 l, 75 KW injection engine
  133
• 9.9 Alternator, 1.8 l, 118 KW TSI engine
  139
• 9.10 Alternator, 2.5 l, 125 kW injection engine
  142
• 9.11 Alternator, 1.6 l TDI engine
  149
• 9.12 Alternator, 2.0 l, 81 kW or 103 kW TDI engine
  155
• 9.13 Alternator, 2.0 l, 125 KW TDI engine
  160
• 9.14 Alternator, 2.0 l, 155 KW TSI engine
  165
• 9.15 Alternator, 2.0 l, 199/188/173/147 kW TSI engine
  172
• 9.16 Removing and installing poly V-belt pulley on alternator
  177
• 9.17 Voltage regulator for alternator
  183
• 10 Cruise control system (CCS)
  187
• 11 Start/stop system
  188
• 11.1 General description
  188
• 11.2 Start/stop operation switch E693
  189
• 11.3 Voltage stabiliser J532
  189
• Gauges, instruments
  192
• 1 Dash panel insert
  192
• 1.1 General description
  192
• 1.2 Renewing dash panel insert
  192
• 1.3 Removing and installing dash panel insert
  193
• 1.4 Description of back of dash panel insert
  194
• 1.5 Pin assignment of connectors on dash panel insert
  194
• 1.6 Warning lamp symbols in dash panel insert
  194
• 1.7 Warning lamp symbols on the dash panel, for USA and Canada only
  196
• 2 Service interval display
  199
• 2.1 Resetting service interval display
  199
• Windscreen wash/wipe system
  200
• 1 Windscreen wiper system
  200
• 1.1 General description
  200
• 1.2 Deactivating APP function of wiper motor
  201
• 1.3 Assembly overview - windscreen wiper system
  201
• 1.4 Removing and installing windscreen wiper system
  202
• 1.5 Removing and installing wiper arms
  207
• 1.6 Adjusting wiper blade park position
  207
• 1.7 Removing and installing joint-free wipers
  209
• 1.8 Rain and light sensor G397
  209
• 2 Windscreen washer system
  215
• 2.1 Assembly overview - windscreen washer system
  215
• 2.2 Removing and installing washer fluid reservoir
  217
• 2.3 Removing and installing windscreen and rear window washer pump V59
  224
• 2.4 Removing and installing windscreen washer fluid level sender G33
  226
• 2.5 Removing and installing windscreen washer system spray jets
  227
• 2.6 Adjusting spray jets for windscreen washer system
  227
• 3 Rear window wiper system
  228
• 3.1 Assembly overview - rear window wiper system
  228
• 3.2 Removing and installing wiper arm
  229
• 3.3 Removing and installing rear window wiper motor V12
  230
• 3.4 Adjusting rear window wiper park position
  231
• 3.5 Removing and installing joint-free wiper
  232
• 4 Rear window washer system
  233
• 4.1 Assembly overview - rear window washer system
  233
• 4.2 Renewing and setting spray jet
  234
• 5 Headlight washer system
  236
• 5.1 General description
  236
• 5.2 Assembly overview - headlight washer system
  236
• 5.3 Removing and installing headlight washer system pump V11
  238
• 5.4 Removing and installing spray jet pop-up cylinders
  239
• 5.5 Removing and installing spray jet pop-up cylinders »Golf R«
  240
• 5.6 Removing and installing spray jet retainer
  242
• 5.7 Adjusting headlight washer system spray jets
  243
• 5.8 Bleeding headlight washer system
  243
• 6 Washer fluid line hose couplings
  244
• 7 Hose repair
  245
• Lights, bulbs, switches - exterior
  246
• 1 Operation and safety notes for gas discharge lamps
  246
• 2 Headlight with halogen bulbs
  249
• 2.1 General description
  249
• 2.2 Assembly overview - headlights with halogen bulbs
  249
• 2.3 Removing and installing headlights with halogen bulbs
  251
• 2.4 Adjusting headlight installation position
  253
• 2.5 Renewing headlight bulbs
  255
• 2.6 Removing and installing headlight range control motor
  262
• 2.7 Repairing headlight retaining tabs
  267
• 2.8 Converting headlights for use when driving on the left or right
  271
• 2.9 Adjusting headlights
  274
• 3 Headlight with gas discharge bulb and cornering light
  275
• 3.1 General description
  275
• 3.2 Assembly overview
  276
• 3.3 Assembly overview »Golf R«
  278
• 3.4 Removing and installing headlight
  280
• 3.5 Adjusting headlight installation position
  282
• 3.6 Renewing gas discharge bulbs and cornering light bulbs in headlights
  282
• 3.7 Headlight starter for gas discharge bulb
  287
• 3.8 Power output module for headlight
  288
• 3.9 Cornering light and headlight range control unit J745
  289
• 3.10 Headlight range control motor
  292
• 3.11 Swivel module position sensor
  292
• 3.12 Headlight screen adjustment solenoid
  292
• 3.13 Vehicle level sender
  292
• 3.14 LED module for daytime running light and side light
  293
• 3.15 Converting headlights for use when driving on the left or right
  293
• 3.16 Repairing headlight retaining tabs
  295
• 3.17 Adjusting headlights
  295
• 4 LED module for daytime running light and side light »Golf R«
  296
• 4.1 Removing and installing LED module for daytime running light and side light L176
  296
• 5 Fog lights
  299
• 5.1 Fog lights Golf
  299
• 5.2 Fog lights Golf GTI
  301
• 5.3 Adjusting fog lights
  305
• 6 Turn signal repeater bulb and entry light in exterior mirror
  306
• 6.1 General description
  306
• 6.2 Turn signal repeater bulb
  306
• 6.3 Entry light in exterior mirror
  307
• 7 Side marker lights
  310
• 7.1 Front side marker light, USA and Canada only
  310
• 7.2 Rear side marker light, USA and Canada only
  312
• 8 Tail light cluster
  313
• 8.1 Assembly overview - tail light cluster in side panel
  313
• 8.2 Removing and installing tail light cluster in side panel
  313
• 8.3 Removing and installing tail light bulb cluster carrier in side panel
  315
• 8.5 Assembly overview - tail light cluster in rear lid
  316
• 8.6 Removing and installing tail light cluster in rear lid
  317
• 8.7 Removing and installing tail light cluster bulb carrier in rear lid
  319
• 8.8 Renewing brake and tail light bulbs in rear lid
  320
• 9 Tail light cluster with LED
  322
• 9.1 General description
  322
• 9.2 Tail light cluster with LEDs in side panel
  322
• 9.3 Tail light cluster with LEDs in rear lid
  326
• 10 Number plate light
  331
• 10.1 Bolted number plate light X
  331
• 10.2 Clipped number plate light X
  333
• 11 High-level brake lights
  336
• 11.1 High-level brake light bulb M25
  336
• 12 Steering column switch, vehicles up to 05/2010
  342
• 12.1 General description
  342
• 12.2 Assembly overview - steering column switch
  342
• 12.3 Removal and installation sequence of components of steering column switch
  344
• 12.4 Steering column electronics control unit J527
  345
• 12.5 Airbag coil connector and return ring with slip ring F138
  347
• 12.6 Steering column combination switch E595
  349
• 13 Steering column switch, vehicles from 06/2010
  354
• 13.1 General description
  354
• 13.2 Assembly overview - steering column switch
  354
• 13.3 Removal and installation sequence of components of steering column switch
  356
• 13.4 Steering column electronics control unit J527
  356
• 13.5 Steering column combination switch E595
  360
• 13.6 Steering column switch base
  362
• 14 Steering column switch, vehicles from 06/2010 with KESSY
  368
• 14.1 General description
  368
• 14.2 Assembly overview - steering column switch
  368
• 14.3 Removal and installation sequence of components of steering column switch
  370
• 14.4 Steering column electronics control unit J527
  370
• 14.5 Steering column combination switch E595
  374
• 14.6 Steering column switch base
  376
• 14.7 Control unit for electronic steering column lock J764
  382
• 15 Ignition/starter switch and lock cylinder, vehicles up to 05/2010
  384
• 15.1 Removing and installing steering lock housing
  384
• 15.2 Removing and installing lock cylinder
  384
• 15.3 Removing and installing ignition/starter switch
  387
• 15.4 Removing and installing ignition key withdrawal lock solenoid N376
  389
• 16 Ignition/starter switch and lock cylinder, vehicles from 06/2010
  391
• 16.1 Removing and installing steering lock housing
  391
• 16.2 Removing and installing lock cylinder
  391
• 16.3 Removing and installing ignition/starter switch
  394
• 16.4 Removing and installing ignition/starter switch, vehicles with KESSY
  396
• 16.5 Removing and installing ignition key withdrawal lock solenoid N376
  396
• 17 Entry and start authorisation (KESSY)
  398
• 17.1 General description
  398
• 17.2 Assembly overview - entry and start authorisation
  399
• 17.3 Entry and start authorisation control unit J518
  401
• 17.4 Entry and start authorisation aerials and sensors
  403
• 17.5 Checking entry and start system aerials and sensors
  407
• 17.6 Starter button E378
  408
• 18 Parking aid (PDC)
  410
• 18.1 General description
  410
• 18.2 Assembly overview - parking aid
  411
• 18.3 Assembly overview - parking aid »Golf R«
  413
• 18.4 Parking aid control unit J446
  415
• 18.5 Front parking aid senders
  415
• 18.6 Front sender for parking aid »Golf R«
  419
• 18.7 Rear parking aid senders
  422
• 18.8 Renewing parking aid senders
  425
• 18.9 Parking aid warning buzzer
  426
• 18.10 Parking aid button E266
  427
• 19 Park assist steering (PAS)
  429
• 19.1 General description
  429
• 19.2 Assembly overview of park assist steering
  430
• 19.3 Park assist steering control unit J791
  432
• 19.4 Park assist steering sender
  434
• 19.5 Renewing park assist steering senders
  437
• 19.6 Front parking aid warning buzzer H22
  438
• 19.7 Rear parking aid warning buzzer H15
  439
• 19.8 Park assist steering button E581
  440
• 20 Reversing camera
  441
• 20.1 General description
  441
• 20.2 Assembly overview - reversing camera system
  441
• 20.3 Removing and installing reversing camera
  442
• 21 Main beam assist (MBA)
  443
• 21.1 General description
  443
• 21.2 Main beam assist control unit J844
  444
• 21.3 Light sensor G399
  444
• Lights, bulbs, switches - interior
  445
• 1 Interior lights and switches
  445
• 2 Lights and switches in engine compartment
  447
• 2.1 Removing and installing bonnet contact switch F266
  447
• 3 Lights and switches in dash panel
  449
• 3.1 Light switch E1
  449
• 3.2 Glove compartment light W6
  450
• 3.3 Glove compartment light switch E26
  452
• 3.5 Front passenger side airbag deactivated warning lamp K145
  453
• 3.6 Hazard warning light switch E3
  454
• 3.7 Right footwell light W10
  455
• 3.8 Left footwell light W9
  458
• 3.9 Key operated switch to deactivate front passenger side airbag E224
  460
• 3.10 Tyre pressure monitor display button E492
  461
• 4 Lights and switches in front doors
  463
• 4.1 Window regulator switch in front passenger door E107
  463
• 4.2 Mirror adjustment switch element, passenger side
  463
• 4.3 Driver side interior locking button for central locking system E308
  464
• 4.4 Components - front door locks
  465
• 4.5 Driver side window regulator switch element
  465
• 4.6 Central locking SAFELOCK function warning lamp K133
  467
• 5 Lights and switches in rear doors
  469
• 5.1 Components - rear door locks
  469
• 5.2 Rear left window regulator switch E52 and rear right window regulator switch E54
  469
• 6 Lights and switches in luggage compartment
  471
• 6.1 Luggage compartment light W3
  471
• 6.2 Rear lid lock unit F256
  473
• 7 Lights and switches in roof trim
  474
• 7.1 Front interior light W1 (vehicles without anti-theft alarm)
  474
• 7.2 Front interior light W1 (vehicles with anti-theft alarm)
  476
• 7.3 Rear interior and reading lights
  480
• 8 Lights and switches in centre console
  485
• 8.1 Buttons in centre console storage compartment
  485
• 9 Horn
  487
• 9.1 Treble horn H2 and bass horn H7
  487
• 10 Immobiliser
  489
• 10.1 General description
  489
• 10.2 Immobiliser control unit J362
  490
• 10.3 Ignition key
  490
• 10.4 New identity on renewing all components
  490
• 10.5 Fazit system test
  490
• 11 Anti-theft alarm system
  492
• 11.1 General description
  492
• 11.2 Assembly overview - anti-theft alarm (ATA)
  492
• 11.3 Activating and deactivating anti-theft alarm
  494
• 11.5 Anti-theft alarm sensor G578
  495
• 11.6 Vehicle inclination sender G384
  496
• 11.7 Interior monitoring sensor G273
  497
• 11.8 Central locking and anti-theft alarm system aerial R47
  497
• 11.9 Alarm horn H12
  497
• 11.10 Adaptations of anti-theft alarm
  499
• Wiring
  500
• 1 Vehicle diagnosis, testing and information systems
  500
• 2 Fuse holder
  501
• 2.1 Fuse holder in dash panel
  501
• 2.2 Fuse holder in electronics box
  502
• 3 Relay carriers
  503
• 3.1 Relay carrier on left of dash panel
  503
• 3.2 Relay carrier on onboard supply control unit J519
  505
• 4 Electronics boxes
  507
• 5 Select Control units
  513
• 5.1 On-board supply control unit J519
  513
• 5.2 Data bus diagnostic interface J533 (gateway)
  518
• 5.3 Driver door control unit J386
  521
• 5.4 Front passenger door control unit J387
  522
• 5.5 Rear left door control unit J388
  522
• 5.6 Rear right door control unit J389
  523
• 5.7 Trailer detector control unit J345
  524
• 6 Wiring harness and connector repairs
  527