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 terminal connection
  1
• 2 Checking battery
  2
• 3 Charging battery
  3
• 4 Disconnecting and connecting battery
  4
• 4.1 Assembly overview
  4
• 4.2 Disconnecting battery
  5
• 4.3 Connecting battery
  6
• 5 Removing and installing battery
  8
• 5.1 Assembly overview
  8
• 5.2 Removing and installing battery
  9
• 5.3 Battery parameterisation
  11
• 6 Starter, vehicles with manual gearbox
  12
• 6.1 Checking starter B
  12
• 6.4 Starter, vehicles with 1.4l, 118 KW TSI engine and manual gearbox MQ250-6F
  18
• 6.6 Starter, vehicles with 2.0 l 103 KW TDI engine and manual gearbox MQ350-6F
  25
• 7 Starter, vehicles with dual clutch gearbox (DSG)
  31
• 7.1 Starter, vehicles with 1.4l, 90 KW TSI engine and dual clutch gearbox (DSG) DQ200-7F
  31
• 7.2 Starter, vehicles with 1.4l, 118 kW TSI engine and dual clutch gearbox (DSG) DQ200-7F
  34
• 7.4 Starter, vehicles with 2.0 l, 103 KW TDI engine and dual clutch gearbox (DSG) DQ250-6F
  40
• 8 Alternator
  46
• 8.1 Securing B+ (battery positive) wire to alternator
  46
• 8.2 Checking poly V-belt
  47
• 8.3 Checking alternator C
  47
• 8.4 Alternator, 1.2 l, 77 KW TSI engine
  47
• 8.5 Alternator, 1.4 l, 90 KW TSI engine
  51
• 8.6 Alternator, 1.4 l, 118 KW TSI engine
  55
• 8.7 Alternator, vehicles with 2.0 l TSI 155 KW, 188 KW or 195 KW engines
  60
• 8.8 Alternator, 1.6 l, 77 KW TDI engine
  66
• 8.9 Alternator, 2.0 l, 103 KW TDI engine
  70
• 8.10 Removing and installing poly V-belt pulley on alternator
  75
• 8.11 Voltage regulator for alternator
  79
• 9 Cruise control system (CCS)
  82
• 10 Start/stop system
  83
• 10.1 General description
  83
• 10.2 Start/stop operation switch E693
  84
• 10.3 Voltage stabiliser J532
  84
• Gauges, instruments
  86
• 1 Dash panel insert
  86
• 1.1 General description
  86
• 1.2 Renewing dash panel insert
  86
• 1.3 Removing and installing dash panel insert
  87
• 1.4 Description of back of dash panel insert
  89
• 1.5 Warning lamp symbols in dash panel insert
  89
• 2 Service interval display
  93
• 2.1 Resetting service interval display
  93
• Windscreen wash/wipe system
  94
• 1 windscreen wiper system
  94
• 1.1 General description
  94
• 1.2 Deactivating APP function of wiper motor
  94
• 1.3 Assembly overview - windscreen wiper system
  96
• 1.4 Removing and installing wiper arms
  96
• 1.5 Removing and installing windscreen wiper system
  99
• 1.6 Removing wiper motor from wiper frame and installing
  100
• 1.7 Adjusting wiper blade park position
  102
• 1.8 Joint-free wipers
  104
• 1.9 Rain and light sensor G397
  106
• 2 Windscreen washer system
  110
• 2.1 Assembly overview - windscreen washer system
  110
• 2.2 Washer fluid reservoir
  111
• 2.3 Washer pump V5
  115
• 2.4 Windscreen washer fluid level sender G33
  116
• 2.5 Spray jets for windscreen washer system
  117
• 3 Headlight washer system
  119
• 3.1 General description
  119
• 3.2 Assembly overview - headlight washer system
  119
• 3.3 Headlight washer system pump V11
  121
• 3.4 Spray jet pop-up cylinder
  121
• 3.5 Bleeding headlight washer system
  124
• 4 Washer fluid line hose couplings
  125
• 5 Hose repair
  126
• Lights, bulbs, switches - exterior
  127
• 1 Operation and safety notes for gas discharge lamps
  127
• 2 Headlight with halogen bulbs
  128
• 2.1 General description
  128
• 2.2 Assembly overview - headlights with halogen bulbs
  128
• 2.3 Removing and installing headlights with halogen bulbs
  130
• 2.4 Adjusting headlight installation position
  132
• 2.5 Replacing headlight bulbs with halogen bulbs
  134
• 2.6 Headlight range control motor
  139
• 2.7 Repairing headlight retaining tabs
  143
• 2.8 Converting headlights for use when driving on the left or right
  146
• 2.9 Adjusting headlights
  148
• 3 Headlight with gas discharge bulb and cornering light
  149
• 3.1 General description
  149
• 3.4 Adjusting headlight installation position
  153
• 3.5 Renewing gas discharge bulbs and cornering light bulbs in headlights
  153
• 3.6 Headlight starter for gas discharge bulb
  156
• 3.7 Power output module for headlight
  157
• 3.8 Headlight range control unit J431
  159
• 3.9 Headlight range control motor
  160
• 3.10 Swivel module position sensor
  160
• 3.11 Headlight screen adjustment solenoid
  161
• 3.12 Vehicle level sender
  161
• 3.13 LED module for daytime running light and side light
  161
• 3.14 Converting headlights for use when driving on the left or right
  162
• 3.15 Repairing headlight retaining tabs
  163
• 3.16 Adjusting headlights
  163
• 4 Fog lights
  164
• 4.1 Fog lights Golf Cabriolet
  164
• 4.2 Fog lights Golf Cabriolet GTI
  166
• 4.3 Adjusting fog lights
  168
• 5 Turn signal repeater bulb and entry light in exterior mirror
  169
• 5.1 General description
  169
• 5.2 Turn signal repeater bulb
  169
• 5.3 Entry light in exterior mirror
  170
• 6 Tail light cluster with LED
  172
• 6.1 General description
  172
• 6.2 Tail light cluster with LEDs in side panel
  173
• 6.3 Tail light cluster with LEDs in rear lid
  176
• 7 Number plate light
  181
• 7.1 Clipped number plate light X
  181
• 8 High-level brake light
  183
• 8.1 High-level brake light bulb M25
  183
• 9 Steering column switch
  185
• 9.1 General description
  185
• 9.2 Assembly overview - steering column switch
  185
• 9.3 Removal and installation sequence of components of steering column switch
  187
• 9.4 Steering column electronics control unit J527
  187
• 9.5 Steering column combination switch E595
  191
• 9.6 Steering column switch base
  192
• 10 Ignition/starter switch and lock cylinder
  197
• 10.1 Steering lock housing
  197
• 10.2 Lock cylinder
  197
• 10.3 Ignition/starter switch
  199
• 10.4 Ignition key withdrawal lock solenoid N376
  201
• 11 Parking aid (PDC)
  202
• 11.1 General description
  202
• 11.2 Assembly overview - parking aid
  203
• 11.3 Park assist steering control unit J791
  204
• 11.4 Parking aid senders
  205
• 11.5 Replacing holders of parking aid senders
  210
• 11.6 Parking aid warning buzzer
  210
• 11.7 Parking aid button E266
  212
• 12 Park assist steering (PAS)
  214
• 12.1 General description
  214
• 12.2 Assembly overview of park assist steering
  215
• 12.3 Park assist steering control unit J791
  217
• 12.4 Park assist steering senders
  219
• 12.5 Replacing holders of parking assist steering senders
  223
• 12.6 Parking aid warning buzzer
  223
• 12.7 Park assist steering button E581
  224
• 13 Reversing camera system
  226
• 13.1 General description
  226
• 13.2 Assembly overview - reversing camera system
  226
• 13.3 Removing and installing reversing camera housing
  227
• 14 Main beam assist (MBA)
  228
• 14.1 General description
  228
• 14.2 Main beam assist control unit J844
  229
• 14.3 Light sensor G399
  230
• 15 Blind Spot Monitor
  231
• 15.1 Assembly overview - blind spot monitor
  231
• 15.2 Removing and installing warning lamp for Blind Spot Monitor K303/K304
  231
• 15.3 Removing and installing Blind Spot Monitor control unit J1086/J1087
  232
• 15.4 Calibrating Blind Spot Monitor
  232
• Lights, bulbs, switches - interior
  240
• 1 Interior lights and switches
  240
• 1.2 Footwell lights
  242
• 2 Lights and switches in engine compartment
  245
• 2.1 Bonnet contact switch F266
  245
• 3 Lights and switches in dash panel
  247
• 3.1 Light switch E1
  247
• 3.3 Glove compartment light W6
  248
• 3.4 Front passenger side airbag deactivated warning lamp K145
  250
• 3.5 Hazard warning light switch E3
  251
• 3.6 Key operated switch to deactivate front passenger side airbag E224
  253
• 3.7 Tyre pressure monitor display button E492
  254
• 4 Lights and switches in doors
  256
• 4.1 Window regulator switch in front passenger door E107
  256
• 4.2 Mirror adjustment switch on passenger side
  256
• 4.3 Driver side interior locking button for central locking system E308
  257
• 4.4 Components - front door locks
  258
• 4.5 Driver side window regulator switch module
  258
• 4.6 Central locking SAFELOCK function warning lamp K133
  260
• 5 Lights and switches in luggage compartment
  261
• 5.1 Luggage compartment light W3
  261
• 5.2 Rear lid lock unit F256
  263
• 6 Lights and switches in roof trim
  264
• 6.1 Interior light
  264
• 6.2 Light for illuminated vanity mirror
  266
• 7 Lights and switches in centre console
  269
• 7.1 Buttons in centre console storage compartment
  269
• 7.2 Convertible roof actuation button E137
  270
• 7.3 Cigarette lighter U1
  271
• 7.4 12 V socket
  272
• 8 Horn
  273
• 8.1 Treble horn H2 and bass horn H7
  273
• 9 Immobiliser
  274
• 9.1 General description
  274
• 9.2 Immobiliser control unit J362
  275
• 9.3 Ignition key
  275
• 9.4 New identity on renewing all components
  276
• 9.5 Fazit system test
  276
• 10 Anti-theft alarm (ATA)
  278
• 10.1 General description
  278
• 10.2 Assembly overview - anti-theft alarm (ATA)
  278
• 10.3 Activating and deactivating anti-theft alarm
  280
• 10.5 Anti-theft alarm sensor G578
  281
• 10.6 Vehicle inclination sender G384
  282
• 10.7 Interior monitoring sensor G273
  282
• 10.8 Central locking and anti-theft alarm system aerial R47
  283
• 10.9 Alarm horn H12
  283
• 10.10 Adaptations of anti-theft alarm
  285
• Wiring
  287
• 1 Vehicle diagnosis, testing and information systems
  287
• 2 Fuse holder
  288
• 2.1 Fuse holder in dash panel
  288
• 2.2 Fuse holder in electronics box
  289
• 3 Relay carriers
  290
• 3.1 Relay carrier on left of dash panel
  290
• 3.2 Relay carrier on onboard supply control unit J519
  292
• 4 Electronics boxes
  294
• 4.1 Electronics box on left side of engine compartment (engine compartment electronics box)
  294
• 5 Control units
  298
• 5.1 On-board supply control unit J519
  298
• 5.2 Data bus diagnostic interface J533 (gateway)
  306
• 5.3 Driver door control unit J386
  310
• 5.4 Front passenger door control unit J387
  311
• 5.5 Rear left door control unit J388
  312
• 5.6 Rear right door control unit J389
  313
• 5.7 Trailer detector control unit J345
  313
• 6 Repairs to wiring harnesses and connectors
  317