Electrical system

Chapter overview

• Technical data
  1
• Starter, current supply, CCS
  2
• 1 Battery
  2
• 1.1 Types of battery
  2
• 1.2 Warning notices and safety regulations
  2
• 1.3 Battery terminal connection
  2
• 2 Checking battery
  3
• 3 Charging battery
  4
• 4 Disconnecting and connecting battery
  5
• 4.1 Disconnecting and connecting battery; battery in engine compartment
  5
• 4.2 Disconnecting and connecting battery, battery in luggage compartment
  7
• 5 Removing and installing battery
  11
• 5.1 Removing and installing battery; battery in engine compartment
  11
• 5.2 Removing and installing battery, battery in luggage compartment
  14
• 6 Specified torques: battery
  16
• 7 Battery isolation igniter N253
  17
• 7.1 Pin assignment and fitting locations
  17
• 7.2 Safety precautions when working on battery isolation igniter N253
  18
• 7.3 Disposal of battery isolation igniter N253
  18
• 7.4 Removing and installing battery isolation igniter N253
  18
• 8 Jump start point with suppression filter C24
  21
• 8.1 Overview of fitting locations
  21
• 8.2 Removing and installing jump start point with suppression filter C24
  21
• 9 Specified torques: jump start point
  23
• 10 Starter motor
  24
• 10.1 Checking starter B
  24
• 10.2 Removing and installing starter, automatic gearbox
  24
• 10.3 Removing and installing starter, dual clutch gearbox (DSG)
  37
• 10.4 Removing and installing starter, manual gearbox
  55
• 11 Specified torques: starter
  89
• 12 Alternator
  90
• 12.1 Securing B+ (battery positive) wire to alternator
  90
• 12.2 Checking poly V-belt
  90
• 12.3 Checking alternator C
  91
• 12.4 Alternator, 1.4 l injection engine
  91
• 12.5 Alternator, 1.4 l FSI engine
  96
• 12.6 Alternator 1.4 l TSI
  100
• 12.7 Alternator, 1.6 l injection engine
  105
• 12.8 Alternator, 1.6 l FSI engine
  112
• 12.9 Alternator, 2.0 l FSI engine
  116
• 12.10 Alternator, 2.0 l FSI turbocharged engine
  125
• 12.11 Alternator, 2.5 l injection engine
  134
• 12.12 Alternator, 3.2 l injection engine
  140
• 12.13 Alternator, 2.0 l SDI engine
  146
• 12.14 Alternator, 1.9 l TDI engine
  151
• 12.15 Alternator, 1.9 l TDI engine with diesel particulate filter
  158
• 12.16 Alternator, 2.0 l TDI engine
  165
• 12.17 Removing and installing poly V-belt pulley on alternator
  171
• 12.18 Voltage regulator for alternator
  175
• 13 Cruise control system (CCS)
  178
• Gauges, instruments
  179
• 1 Dash panel insert
  179
• 1.1 Renewing dash panel insert
  179
• 1.2 Removing and installing dash panel insert
  180
• 1.3 Description of back of dash panel insert
  180
• 1.4 Pin assignment of connectors on dash panel insert
  180
• 1.5 Warning lamp symbols in dash panel insert
  181
• 2 Service interval display
  183
• 2.1 Resetting service interval display
  183
• Windscreen wash/wipe system
  184
• 1 windscreen wiper system
  184
• 1.1 Deactivating APP function of wiper motor
  184
• 1.2 Removing and installing windscreen wiper system
  185
• 1.3 Removing and installing wiper arms
  188
• 1.4 Adjusting wiper blade park position
  189
• 1.5 Removing and installing joint-free wipers
  190
• 1.6 Removing and installing rain and light sensor G397
  192
• 2 Windscreen washer system
  196
• 2.1 Assembly overview - windscreen washer system
  196
• 2.2 Removing and installing washer fluid reservoir
  197
• 2.3 Removing and installing windscreen and rear window washer pump V59
  201
• 2.4 Removing and installing windscreen washer fluid level sender G33
  202
• 2.5 Removing and installing windscreen washer system spray jets
  203
• 2.6 Adjusting windscreen washer system spray jets
  203
• 3 Rear window wiper system
  204
• 3.1 Assembly overview - rear window wiper system
  204
• 3.2 Removing rear window wiper
  205
• 3.3 Adjusting rear window wiper park position
  206
• 3.4 Removing and installing joint-free wiper
  207
• 4 Rear window washer system
  208
• 4.1 Assembly overview - rear window washer system
  208
• 4.2 Renewing spray jet
  209
• 4.3 Adjusting spray jet
  209
• 5 Headlight washer system
  210
• 5.1 Assembly overview - headlight washer system
  210
• 5.2 Removing and installing headlight washer system pump V11
  212
• 5.3 Removing and installing spray jet pop-up cylinders
  212
• 5.4 Removing and installing spray jet retainer
  213
• 5.5 Adjusting headlight washer system spray jets
  214
• 5.6 Bleeding headlight washer system
  214
• 6 Washer fluid line hose couplings
  215
• 7 Hose repair
  216
• 8 Specified torques: windscreen wash/wipe system
  217
• Lights, bulbs, switches - exterior
  218
• 1 Headlights
  218
• 1.1 Assembly overview - headlight
  218
• 1.2 Removing and installing headlight
  220
• 1.3 Adjusting headlight installation position
  222
• 1.4 Renewing headlight bulbs
  223
• 1.5 Removing and installing headlight range control motor
  228
• 1.6 Repairing headlight retaining tabs
  234
• 1.7 Converting headlights for use when driving on the left or right
  236
• 1.8 Adjusting headlights
  238
• 2 Headlights with gas discharge bulbs
  239
• 2.1 Assembly overview - gas discharge headlights
  239
• 2.2 Removing and installing gas discharge headlights
  241
• 2.3 Adjusting headlight installation position
  241
• 2.4 Renewing headlight bulbs
  242
• 2.5 Removing and installing headlight range control motor
  247
• 2.6 Removing and installing gas discharge bulb control unit
  250
• 2.7 Headlight range control unit J431
  251
• 2.8 Vehicle level sender
  254
• 2.9 Repairing headlight retaining tabs
  256
• 2.10 Converting headlights for use when driving on the left or right
  256
• 2.11 Adjusting headlights
  257
• 3 Headlights - Golf GT, GTI, R32
  258
• 3.1 Assembly overviews
  258
• 3.2 Removing and installing headlight GT, GTI and R32
  258
• 3.3 Adjusting headlight installation position
  262
• 3.4 Renewing headlight bulbs
  264
• 3.5 Removing and installing headlight range control motor
  264
• 3.6 Removing and installing gas discharge bulb control unit
  264
• 3.7 Headlight range control unit J431
  264
• 3.8 Vehicle level sender
  264
• 3.9 Repairing headlight retaining tabs
  264
• 3.10 Converting headlights for use when driving on the left or right
  264
• 3.11 Adjusting headlights
  264
• 4 Fog lights
  265
• 4.1 Assembly overview - fog lights
  265
• 4.2 Removing and installing fog light
  265
• 4.3 Removing and installing fog light bulb
  266
• 4.4 Adjusting fog lights
  267
• 5 Bulb for mirror turn signal and entry light in exterior mirror
  268
• 5.1 Removing and installing turn signal repeater bulb
  268
• 5.2 Removing and installing entry light in exterior mirror
  269
• 6 Side marker lights
  271
• 6.1 Bulb for front side marker light M11 , USA and Canada only
  271
• 6.2 Rear side marker light, USA and Canada only
  273
• 7 Tail lights
  274
• 7.1 Assembly overview - tail light cluster in side panel, vehicles ► 11.05
  274
• 7.2 Assembly overview - tail light cluster in side panel, vehicles 11.05 ►
  275
• 7.3 Removing and installing tail light cluster in side panel
  275
• 7.4 Renewing tail light cluster, vehicles ► 11.05
  276
• 7.5 Renewing tail light cluster, vehicles 11.05 ►
  277
• 7.6 Adjusting tail light cluster
  278
• 7.7 Removing and installing tail light cluster adjuster element
  279
• 7.8 Removing and installing tail light cluster bulb carrier in side panel
  280
• 7.9 Assembly overview - tail light cluster in rear lid
  280
• 7.10 Removing and installing tail light cluster in rear lid
  281
• 7.11 Removing and installing tail light cluster bulb carrier in rear lid
  282
• 8 Number plate light
  284
• 8.1 Removing and installing number plate light X
  284
• 9 High-level brake light
  286
• 9.1 Removing and installing bulb for high-level brake light M25
  286
• 9.2 Removing and installing high-level brake light bulb M25 , Golf GTI
  288
• 10 Steering column switch
  290
• 10.1 Assembly overview - steering column switch
  290
• 10.2 Removing and installing steering column switch
  292
• 10.3 Steering column electronics control unit J527
  298
• 10.4 Steering angle sender G85
  298
• 11 Ignition/starter switch and lock cylinder
  299
• 11.1 Removing and installing steering lock housing
  299
• 11.2 Removing and installing lock cylinder
  299
• 11.3 Removing and installing ignition/starter switch
  301
• 11.4 Removing and installing ignition key withdrawal lock solenoid N376
  302
• 12 Parking aid
  304
• 12.1 Assembly overview - parking aid
  304
• 12.2 Removing and installing parking aid control unit J446
  306
• 12.3 Removing and installing rear parking aid senders
  306
• 12.4 Removing and installing parking aid warning buzzer H15
  308
• 12.5 Final control diagnosis
  309
• 13 Specified torques: lights, bulbs, switches - exterior
  310
• 13.1 Specified torques: headlights
  310
• 13.2 Specified torques: fog lights
  310
• 13.3 Specified torques: tail light cluster in side panel
  310
• 13.4 Specified torques: tail light cluster in rear lid
  310
• 13.5 Specified torques: vehicle level sender
  310
• Lights, bulbs, switches - interior
  311
• 1 Interior lights and switches
  311
• 2 Lights and switches in engine compartment
  313
• 2.1 Removing and installing bonnet contact switch F266
  313
• 3 Lights and switches in dash panel
  314
• 3.1 Removing and installing light switch E1
  314
• 3.2 Removing and installing glove compartment light W6
  315
• 3.3 Removing and installing glove compartment light switch E26
  316
• 3.6 Removing and installing hazard warning light switch E3
  318
• 3.7 Removing and installing left footwell light W9 and right footwell light W10
  318
• 3.8 Removing and installing key-operated switch to deactivate front passenger side airbag E224
  320
• 4 Lights and switches in front doors
  322
• 4.1 Removing and installing window regulator switch in front passenger door E107
  322
• 4.2 Removing and installing mirror adjustment switch element, driver side
  322
• 4.3 Removing and installing driver side interior locking button for central locking system E308
  323
• 4.4 Components - front door locks
  324
• 4.5 Removing and installing driver side window regulator switch element
  324
• 4.6 Removing and installing fuel tank flap release button E319
  326
• 5 Lights and switches in rear doors
  328
• 5.1 Components - rear door locks
  328
• 6 Lights and switches in luggage compartment
  330
• 6.1 Removing and installing luggage compartment light W3
  330
• 6.2 Removing and installing rear lid locking unit F256
  331
• 7 Lights and switches in roof trim
  332
• 7.1 Front interior light and reading light (vehicles with no sliding sunroof)
  332
• 7.2 Front interior light and reading light (vehicles with sliding sunroof)
  335
• 7.3 Rear interior light and reading light (vehicles with no anti-theft alarm)
  339
• 7.4 Rear interior light and reading light (vehicles with anti-theft alarm system (ATA))
  341
• 7.6 Garage door opener
  345
• 8 Lights and switches in centre console
  346
• 8.1 Removing and installing TCS and ESP button E256
  346
• 9 Horn
  348
• 9.1 Removing and installing treble horn H2 and bass horn H7
  348
• 9.2 Checking treble horn H2 and bass horn H7
  348
• 10 Immobiliser, vehicles up to 05/2007
  349
• 10.1 Immobiliser control unit J362
  349
• 10.2 Immobiliser reader coil D2
  349
• 10.3 Ignition key
  349
• 11 Immobiliser, vehicles as of 06/2007
  351
• 11.1 Immobiliser control unit J362
  352
• 11.2 Ignition key
  352
• 11.3 New identity on renewing all components
  352
• 11.4 Fazit system test
  352
• 12 Anti-theft alarm (ATA) to 05/2006
  354
• 12.1 General description
  354
• 12.2 Activating and deactivating anti-theft alarm
  354
• 12.4 Removing and installing interior monitoring sensor
  355
• 12.5 Removing and installing vehicle inclination sender G384
  355
• 12.6 Central locking and anti-theft alarm system aerial R47
  356
• 12.7 Alarm horn H12
  356
• 13 Anti-theft alarm (ATA) from 06/2006
  359
• 13.1 General description
  359
• 13.2 Activating and deactivating anti-theft alarm
  359
• 13.4 Removing and installing interior monitoring sensor and vehicle inclination sender
  360
• 13.5 Central locking and anti-theft alarm system aerial R47
  360
• 13.6 Alarm horn H12
  361
• Wiring
  362
• 1 Vehicle diagnosis, testing and information systems
  362
• 2 Main fuse holder, Golf R32 only
  363
• 2.1 Main fuse holder- assembly overview
  363
• 2.2 Removing and installing main fuse holder
  364
• 3 Specified torques: main fuse box
  366
• 4 Removing and installing fuse holder
  367
• 4.1 Removing and installing fuse holder on left of dash panel
  367
• 5 Removing and installing relay carrier
  369
• 5.2 Removing relay carrier from onboard supply control unit on left in dash panel and installing
  370
• 6 Electronics boxes
  372
• 6.1 Removing and installing electronics box on left side of engine compartment
  372
• 7 Select Control units
  377
• 7.1 On-board supply control unit J519
  377
• 7.2 Data bus diagnostic interface J533
  378
• 7.3 Convenience system central control unit J393
  380
• 7.4 Trailer detector control unit J345
  383
• 7.5 Garage door operation control unit J530
  385
• 8 Specified torques: wiring
  386
• 8.1 Specified torques: electronics box on left side of engine compartment
  386
• 8.2 Specified torques: trailer detector control unit J345
  386
• 9 Wiring harness and connector repairs
  387