Electrical system

Chapter overview

• Technical data
  1
• 1 Safety information
  1
• 1.1 Safety measures when working on vehicles with start/stop system
  1
• 1.2 Safety precautions when using test and measuring equipment during a road test
  1
• 1.3 Operation and safety notes for gas discharge lamps
  2
• 2 Repair notes
  4
• 2.1 Contact corrosion
  4
• 2.2 Routing and attachment of lines
  4
• 3 Battery
  5
• 3.1 Battery - general notes
  5
• 3.2 Types of battery
  5
• Starter, current supply, CCS
  6
• 1 Battery
  6
• 1.1 Warning notices and safety regulations
  6
• 1.2 Assembly overview - battery
  6
• 1.3 Assembly overview - battery tray
  12
• 1.4 Battery load test
  16
• 1.5 Disconnecting and connecting battery
  16
• 1.6 Removing and installing battery
  21
• 1.7 Removing and installing battery tray
  25
• 1.8 Checking battery
  27
• 1.9 Charging battery
  27
• 1.10 Removing and installing earth wire with battery monitor control unit J367
  27
• 1.11 Removing and installing battery cut-off/battery isolator
  28
• 1.12 Adapting battery monitor control unit J367
  32
• 1.13 Removing and installing suppression filter C24
  32
• 2 Starter, vehicles with manual gearbox
  33
• 2.1 Checking starter
  33
• 2.2 Starter, vehicles with manual gearbox MQ200
  33
• 2.3 Starter, vehicles with manual gearbox MQ250
  37
• 2.4 Starter, vehicles with manual gearbox MQ350
  40
• 3 Starter, vehicles with dual clutch gearbox (DSG)
  47
• 3.1 Checking starter B
  47
• 3.2 Starter, vehicles with 1.6 l TDI engine, 7-speed dual clutch gearbox 0AM
  47
• 3.3 Starter, vehicles with 1.4 l 132 KW TSI engine, 7-speed dual clutch gearbox 0AM
  49
• 3.4 Starter, vehicles with 1.4 l 103 KW TSI engine, 7-speed dual clutch gearbox 0AM
  52
• 3.5 Starter, vehicles with 1.2 l 77 kW TSI engine, 7-speed dual clutch gearbox 0AM
  55
• 4 Starter, vehicles with automatic gearbox
  59
• 4.1 Starter, vehicles with automatic gearbox 09G
  59
• 5 Alternator
  63
• 5.1 Checking poly V-belt
  63
• 5.2 Checking alternator C
  63
• 5.3 Securing B+ (battery positive) wire to alternator
  63
• 5.4 Alternator, 1.2 l injection engine, 51 kW
  64
• 5.5 Alternator, 1.4 l, 63 kW injection engine
  69
• 5.6 Alternator, 1.2 l, 66 kW/77 kW TSI engine
  72
• 5.7 Alternator, 1.4 l, 103 KW TSI engine
  77
• 5.8 Alternator, 1.4 l, 132 KW TSI engine
  81
• 5.9 Alternator, 2.0 l, 162 KW TSI engine
  87
• 5.10 Alternator 1.2 l TDI
  92
• 5.11 Alternator, 1.6 l TDI engine
  97
• 5.12 Removing and installing poly V-belt pulley on alternator
  102
• 5.13 Voltage regulator for alternator
  109
• 6 Cruise control system (CCS)
  113
• 7 Start/stop system
  114
• 7.1 General description
  114
• 7.2 Start/stop operation switch E693
  115
• 7.3 Voltage stabiliser J532
  115
• Gauges, instruments
  117
• 1 Dash panel insert
  117
• 1.1 Renewing dash panel insert
  117
• 1.2 Removing and installing dash panel insert
  118
• 1.3 Description of back of dash panel insert
  119
• 1.4 Warning lamp symbols in dash panel insert, petrol engine
  119
• 1.5 Warning lamp symbols in dash panel insert, diesel engine
  120
• 2 Service interval display
  122
• 2.1 Resetting service interval display
  122
• Windscreen wash/wipe system
  123
• 1 Windscreen wiper system
  123
• 1.1 Assembly overview - windscreen wiper system
  123
• 1.2 Removing and installing wiper arms
  124
• 1.3 Removing wiper frame with linkage and wiper motor
  126
• 1.4 Removing wiper motor from wiper frame and installing
  128
• 1.5 Adjusting wiper blade park position
  130
• 1.6 Removing and installing joint-free wipers
  132
• 1.7 Removing and installing wiper blade of joint-free wiper
  133
• 1.8 Removing and installing rain and light sensor G397
  134
• 2 Windscreen washer system
  139
• 2.1 Assembly overview - windscreen washer system
  139
• 2.2 Removing and installing windscreen washer system spray jets
  141
• 2.3 Adjusting spray jets for windscreen washer system
  142
• 2.4 Assembly overview - washer fluid reservoir
  142
• 2.5 Removing and installing windscreen and rear window washer pump V59
  145
• 3 Rear window wiper system
  147
• 3.1 Assembly overview - rear window wiper system
  147
• 3.2 Removing and installing wiper arm
  148
• 3.3 Removing and installing rear window wiper motor V12
  149
• 3.4 Adjusting rear window wiper park position
  150
• 3.5 Removing and installing joint-free wiper
  151
• 4 Rear window washer system
  152
• 4.1 Assembly overview - rear window washer system
  152
• 4.2 Renewing spray jet
  152
• 4.3 Adjusting spray jet
  153
• 5 Headlight washer system
  154
• 5.1 Assembly overview - headlight washer system
  154
• 5.2 Removing and installing headlight washer system pump V11
  155
• 5.3 Removing and installing spray jet pop-up cylinders
  156
• 5.4 Removing and installing spray jet retainer
  157
• 5.5 Adjusting headlight washer system spray jets
  158
• 5.6 Bleeding headlight washer system
  158
• 6 Washer fluid line hose couplings
  160
• 7 Hose repair
  161
• Lights, bulbs, switches - exterior
  162
• 1 Operation and safety notes for gas discharge lamps
  162
• 2 H4 headlights
  165
• 2.1 Assembly overview - headlights with halogen bulb H4
  165
• 2.2 Removing and installing headlight
  166
• 2.3 Adjusting headlight installation position
  168
• 2.4 Renewing headlight bulbs
  170
• 2.5 Removing and installing headlight range control motor
  174
• 2.6 Converting headlights for use when driving on the left or right (halogen headlight)
  177
• 2.7 Adjusting headlights
  180
• 3 H7 headlights
  181
• 3.1 Assembly overview - headlights with halogen bulb H7
  181
• 3.2 Removing and installing headlight
  183
• 3.3 Adjusting headlight installation position
  184
• 3.4 Renewing headlight bulbs
  185
• 3.5 Removing and installing headlight range control motor
  190
• 3.7 Adjusting headlights
  196
• 4 Headlights with gas discharge bulb
  197
• 4.1 General description
  197
• 4.2 Assembly overview
  197
• 4.3 Removing and installing headlight
  199
• 4.4 Adjusting headlight installation position
  201
• 4.5 Renewing gas discharge headlight bulb
  201
• 4.6 Headlight starter for gas discharge bulb
  206
• 4.7 Headlight range control unit J431
  208
• 4.8 Headlight range control motor
  209
• 4.9 Headlight screen adjustment solenoid
  210
• 4.10 LED module for daytime running light and side light
  211
• 4.11 Converting headlights for use when driving on the left or right
  211
• 4.12 Repairing headlight retaining tabs
  211
• 4.13 Adjusting headlights
  211
• 5 Fog lights
  212
• 5.1 Assembly overview - fog lights
  212
• 5.2 Removing and installing fog light
  212
• 5.3 Removing and installing fog light bulb
  214
• 5.4 Adjusting fog lights
  215
• 6 Fog light Polo Cross (Polo Dune)
  216
• 6.1 Assembly overview - fog lights
  216
• 6.2 Removing and installing fog light
  216
• 6.3 Removing and installing fog light bulb
  217
• 6.4 Adjusting fog lights
  218
• 7 Daytime running light
  219
• 7.1 Removing and installing daytime running light bulb in fog light
  219
• 8 Tail light
  221
• 8.1 Assembly overview - tail light
  221
• 8.2 Removing and installing tail light cluster
  222
• 8.3 Removing and installing tail light cluster bulb carrier
  223
• 9 Number plate light
  225
• 9.1 Bolted number plate light X
  225
• 9.2 Clipped number plate light X
  227
• 10 High-level brake light
  230
• 10.1 High-level brake light bulb M25
  230
• 11 Steering column switch
  235
• 11.1 Removing and installing steering column switch
  236
• 11.2 Removing and installing airbag coil connector and return ring with slip ring F138
  239
• 11.3 Basic setting of steering angle sensor G85
  241
• 12 Ignition/starter switch and lock cylinder
  242
• 12.1 Removing and installing lock cylinder
  242
• 12.2 Ignition/starter switch D
  244
• 12.3 Removing and installing ignition key withdrawal lock solenoid N376
  248
• 13 Steering lock housing
  249
• 13.1 Removing and installing steering lock housing
  249
• 14 Parking aid
  252
• 14.1 Assembly overview
  252
• 14.2 Parking aid control unit J446
  253
• 14.3 Parking aid warning buzzer H15
  255
• 14.4 Rear parking aid sender up to 07/2009
  256
• 14.5 Rear parking aid sender from 08/2009 onwards
  259
• 14.6 Renewing parking aid senders
  262
• Lights, bulbs, switches - interior
  264
• 1 Interior lights and switches
  264
• 1.1 Removing and installing interior monitoring switch E183
  264
• 2 Lights and switches in engine compartment
  266
• 2.1 Removing and installing bonnet contact switch F266
  266
• 3 Lights and switches in dash panel
  267
• 3.1 Removing and installing light switch E1
  267
• 3.3 Buttons, switches and warning lamps in centre of dash panel
  269
• 3.4 Removing and installing petrol or gas fuel selection switch E395
  270
• 3.5 Removing and installing tyre pressure monitor display button E492
  271
• 3.7 Removing and installing left footwell light W9 and right footwell light W10
  273
• 4 Lights and switches in doors
  275
• 4.1 Removing and installing window regulator switch in front passenger door E107
  275
• 4.2 Removing and installing switch module for driver side window regulator
  276
• 4.3 Removing and installing switch module for mirror adjustment on driver side
  277
• 4.5 Components - front door locks
  279
• 5 Lights and switches in luggage compartment and rear lid
  281
• 5.1 Removing and installing luggage compartment light W3
  281
• 5.2 Removing and installing luggage compartment light switch F5
  282
• 6 Lights and switches in roof trim
  283
• 6.1 Removing and installing sliding sunroof adjustment regulator
  283
• 6.3 Interior light with switch-off delay feature W15 and panorama venting/sliding glass sunroof
  288
• 6.4 Rear interior light W43
  289
• 6.5 Removing and installing light for vanity mirror
  292
• 7 12 V socket
  294
• 8 Cigarette lighter U1
  295
• 9 Horn
  296
• 9.1 Removing and installing horn in vehicles with fog lights or daytime running lights
  296
• 10 Immobiliser
  298
• 10.1 Immobiliser control unit J362
  298
• 10.2 Ignition key
  299
• 10.3 New identity on renewing all components
  299
• 10.4 Fazit system test
  299
• 11 Anti-theft alarm system (ATAS)
  300
• 11.1 Activating and deactivating anti-theft alarm
  300
• 11.2 Removing and installing interior monitoring switch E183
  300
• 11.3 Removing and installing anti-theft alarm sensor G578
  301
• 11.4 Alarm horn H12
  301
• Wiring
  304
• 1 Vehicle diagnosis, testing and information systems
  304
• 2 Fuse holder
  305
• 2.1 Removing and installing fuse holder B SB on left in dash panel
  305
• 2.2 Removing and installing fuse holder A SA on left in engine compartment
  306
• 2.3 Removing and installing bracket for fuse holder A SA
  310
• 3 Relay carrier
  313
• 3.1 Removing and installing relay carrier on left of dash panel
  313
• 4 Control units
  315
• 4.1 Onboard supply control unit J519
  315
• 4.2 Data bus diagnostic interface J533
  316
• 4.3 Trailer detector control unit J345
  316
• 5 Wiring harness and connector repairs
  320