Electrical system up to 05.2011

Chapter overview

• Starter, current supply, CCS
  1
• 1 Battery
  1
• 1.1 Types of battery
  1
• 1.2 Warning notices and safety regulations
  1
• 1.3 Battery terminal connection
  1
• 2 Checking battery
  2
• 3 Charging battery
  3
• 4 Disconnecting and reconnecting battery
  4
• 4.1 Assembly overview
  4
• 4.2 Disconnecting battery
  4
• 4.3 Reconnecting battery
  5
• 5 Removing and installing battery
  7
• 5.1 Assembly overview
  7
• 5.2 Removing and installing battery
  8
• 6 Starter, vehicles with manual gearbox
  13
• 6.1 Checking starter B
  13
• 6.2 Starter, vehicles with 1.4 l TSI engine and manual gearbox MQ500
  13
• 6.3 Starter, vehicles with 2.0 l TDI engine and manual gearbox MQ500
  16
• 6.4 Starter, vehicles with 2.0 l TSI engine and manual gearbox MQ500
  21
• 7 Starter, vehicles with automatic gearbox
  26
• 7.1 Starter, vehicles with 2.0 l TDI engine and automatic gearbox AQ450
  26
• 7.2 Starter, vehicles with 2.0 l TSI engine and automatic gearbox AQ450
  30
• 8 Starter, vehicles with dual clutch gearbox (DSG)
  36
• 8.1 Starter, vehicles with 2.0 l TDI engine and dual clutch gearbox DQ500-7F
  36
• 9 Alternator
  40
• 9.1 Securing B+ (battery positive) wire to alternator
  40
• 9.2 Checking poly V-belt
  40
• 9.3 Checking alternator C
  41
• 9.4 Alternator, 1.4 l TSI engine
  41
• 9.5 Alternator, 2.0 l TSI engine
  46
• 9.6 Alternator, 2.0 l TDI engine
  50
• 9.7 Removing and installing poly V-belt pulley on alternator
  54
• 9.8 Voltage regulator for alternator
  59
• 10 Cruise control system (CCS)
  62
• 11 Start/stop system
  63
• 11.1 General description
  63
• 11.2 Start/stop operation switch E693
  64
• 11.3 Voltage stabiliser J532
  64
• Gauges, instruments
  66
• 1 Dash panel insert
  66
• 1.1 General description
  66
• 1.2 Renewing dash panel insert
  66
• 1.3 Coding dash panel insert
  67
• 1.4 Removing and installing dash panel insert
  67
• 1.5 Description of back of dash panel insert
  68
• 1.6 Pin assignment of connections on dash panel insert
  68
• 1.7 Warning lamp symbols in dash panel insert
  68
• 2 Service interval display
  70
• 2.1 Resetting service interval display
  70
• Windscreen wash/wipe system
  71
• 1 Windscreen wiper system
  71
• 1.1 General description
  71
• 1.2 Assembly overview - windscreen wiper system
  71
• 1.3 Deactivating APP function of wiper motor
  72
• 1.4 Removing and installing windscreen wiper system
  73
• 1.5 Removing and installing wiper arms
  77
• 1.6 Adjusting wiper blade park position
  78
• 1.7 Removing and installing joint-free wipers
  79
• 1.8 Rain and light sensor G397
  80
• 2 Windscreen washer system
  84
• 2.1 General description
  84
• 2.2 Assembly overview - windscreen washer system
  84
• 2.3 Removing and installing washer fluid reservoir
  86
• 2.4 Removing and installing windscreen and rear window washer pump V59
  88
• 2.5 Removing and installing windscreen washer fluid level sender G33
  88
• 2.6 Removing and installing windscreen washer system spray jets
  89
• 2.7 Adjusting windscreen washer system spray jets
  89
• 3 Rear window wiper system
  90
• 3.1 General description
  90
• 3.2 Assembly overview - rear window wiper system
  90
• 3.3 Removing and installing rear window wiper system
  91
• 3.4 Adjusting rear window wiper park position
  93
• 3.5 Removing and installing joint-free wiper
  93
• 4 Rear window washer system
  95
• 4.1 General description
  95
• 4.2 Assembly overview - rear window washer system
  95
• 4.3 Renewing spray jet
  96
• 4.4 Adjusting spray jet for rear window washer system
  96
• 5 Headlight washer system
  97
• 5.1 General description
  97
• 5.2 Assembly overview - headlight washer system
  97
• 5.3 Removing and installing headlight washer system pump V11
  98
• 5.4 Removing and installing spray jet assembly
  99
• 5.5 Removing and installing spray jet pop-up cylinders
  100
• 5.6 Adjusting headlight washer system spray jets
  101
• 5.7 Bleeding headlight washer system
  101
• 6 Washer fluid line hose couplings
  102
• 7 Hose repair
  103
• Lights, bulbs, switches - exterior
  104
• 1 Electrical components
  104
• 2 Headlight with halogen bulbs
  105
• 2.1 General description
  105
• 2.2 Assembly overview - headlights with halogen bulbs
  105
• 2.3 Removing and installing headlights with halogen bulbs
  107
• 2.4 Adjusting headlight installation position
  109
• 2.5 Renewing headlight bulbs
  110
• 2.6 Removing and installing headlight range control motor
  115
• 2.7 Repairing headlight retaining tabs (halogen headlight)
  115
• 2.8 Converting headlights for use when driving on the left or right
  118
• 2.9 Adjusting headlights
  120
• 3 Headlights with gas discharge bulbs and cornering lights
  121
• 3.1 General description
  121
• 3.3 Removing and installing gas discharge headlight with cornering light
  123
• 3.4 Adjusting headlight installation position
  125
• 3.5 Renewing headlight bulbs
  125
• 3.6 Removing and installing headlight range control motor
  132
• 3.7 Gas discharge bulb control unit
  132
• 3.8 Power output module for headlight
  133
• 3.9 Cornering light and headlight range control unit J745
  134
• 3.10 Vehicle level sender
  135
• 3.11 Repairing headlight retaining tabs
  137
• 3.12 Converting headlights for use when driving on the left or right
  137
• 3.13 Adjusting headlights
  138
• 3.14 Operation and safety notes for gas discharge bulbs
  139
• 4 Fog lights
  142
• 4.1 General description
  142
• 4.2 Assembly overview - fog lights
  142
• 4.3 Removing and installing fog light
  143
• 4.4 Removing and installing fog light bulb
  144
• 4.5 Adjusting fog lights
  145
• 5 Turn signal repeater and entry light in exterior mirror
  146
• 5.1 General description
  146
• 5.2 Removing and installing turn signal repeater bulb
  146
• 5.3 Removing and installing entry light in exterior mirror
  147
• 6 Tail lights (tail light cluster)
  148
• 6.1 Tail lights (tail light cluster) in side panel
  148
• 6.2 Tail lights (tail light cluster) in rear lid
  153
• 7 Additional brake light
  159
• 7.1 Removing and installing additional brake light M25
  159
• 8 Number plate light
  162
• 8.1 Removing and installing number plate light X
  162
• 8.2 Replacing number plate light bulb
  163
• 9 Reversing light in bumper cover
  164
• 9.1 Removing and installing left reversing light X1 and right reversing light X2
  164
• 9.2 Renewing left reversing light bulb M16 or right reversing light bulb M17
  164
• 10 Side marker lights
  165
• 10.1 Front side marker light, vehicles for USA and Canada
  165
• 10.2 Rear side marker light, vehicles for USA and Canada
  167
• 11 Steering column switch, vehicles up to 05/2010
  168
• 11.1 General description
  168
• 11.2 Assembly overview - steering column switch
  169
• 11.3 Removing and installing steering column switch
  171
• 11.4 Steering column electronics control unit J527
  183
• 11.5 Steering angle sender G85
  183
• 12 Steering column switch, vehicles from 06/2010
  184
• 12.1 General description
  184
• 12.2 Assembly overview - steering column switch
  185
• 12.3 Removal and installation sequence of components of steering column switch
  187
• 12.4 Steering column electronics control unit J527
  188
• 12.5 Steering column combination switch E595
  194
• 12.6 Steering column switch base
  196
• 13.1 General description
  203
• 13.2 Assembly overview - steering column switch
  204
• 13.3 Removal and installation sequence of components of steering column switch
  206
• 13.4 Steering column electronics control unit J527
  207
• 13.5 Steering column combination switch E595
  213
• 13.6 Steering column switch base
  216
• 13.7 Electronic steering column lock control unit J764
  223
• 14 Ignition/starter switch and lock cylinder, vehicles up to 05/2010
  226
• 14.1 Removing and installing steering lock housing
  226
• 14.2 Removing and installing lock cylinder
  227
• 14.3 Removing and installing ignition/starter switch
  230
• 14.4 Ignition key withdrawal lock solenoid N376
  231
• 15 Ignition/starter switch and lock cylinder, vehicles up to 06/2010
  233
• 15.1 Removing and installing steering lock housing
  233
• 15.2 Removing and installing lock cylinder
  234
• 15.3 Removing and installing ignition/starter switch
  237
• 15.4 Removing and installing ignition/starter switch, vehicles with Keyless Access
  239
• 15.5 Removing and installing ignition key withdrawal lock solenoid N376
  239
• 16 Entry and start authorisation (KESSY)
  241
• 16.1 General description
  241
• 16.2 Assembly overview - entry and start authorisation
  241
• 16.3 Entry and start authorisation control unit J518
  243
• 16.4 Entry and start authorisation aerials and sensors
  246
• 16.5 Checking entry and start authorisation aerials and sensors
  248
• 16.6 Starter button E378
  251
• 17 Rear parking aid (PDC)
  253
• 17.1 General description
  253
• 17.2 Assembly overview - rear parking aid (PDC)
  253
• 17.3 Rear parking aid control unit
  254
• 17.4 Removing and installing rear parking aid sender
  255
• 17.5 Rear parking aid warning buzzer H15
  257
• 18 Front parking aid (PDC)
  258
• 18.1 General description
  258
• 18.2 Assembly overview - front parking aid (PDC)
  258
• 18.3 Control unit for front parking aid
  258
• 18.4 Front parking aid senders
  258
• 18.5 Front parking aid button E266
  258
• 18.6 Front parking aid warning buzzer H22
  259
• 19 Park assist steering (PAS)
  260
• 19.1 General description
  260
• 19.2 Assembly overview of park assist steering
  261
• 19.3 Park assist steering control unit J791
  263
• 19.4 Front parking aid sender and park assist steering sender
  264
• 19.6 Park assist steering button E581
  266
• 19.7 Front parking aid warning buzzer H22
  267
• 19.8 Rear parking aid warning buzzer H15 (vehicles with park assist steering)
  267
• 20 Reversing camera system
  269
• 20.1 General description
  269
• 20.2 Assembly overview - reversing camera system
  269
• 20.3 Removing and installing reversing camera
  270
• 20.4 Reversing camera system control unit J772
  270
• 20.5 Calibrating reversing camera system
  271
• Lights, bulbs, switches - interior
  277
• 1 Interior lights and switches
  277
• 1.1 Removing and installing interior monitoring deactivation switch E267
  277
• 2 Lights and switches in engine compartment
  279
• 2.1 Removing and installing bonnet contact switch F266
  279
• 3 Lights and switches in dash panel
  280
• 3.1 Removing and installing light switch E1
  280
• 3.3 Removing and installing glove compartment light W6
  282
• 3.4 Removing and installing glove compartment light switch E26
  283
• 3.5 Removing and installing warning lamp for airbag deactivated on front passenger side K145
  284
• 3.6 Removing and installing hazard warning light switch E3
  285
• 3.7 Removing and installing left footwell light W9 and right footwell light W10
  286
• 3.8 Removing and installing key-operated switch to deactivate front passenger side airbag E224
  287
• 4 Lights and switches in front doors
  289
• 4.1 Removing and installing driver side switch element
  289
• 4.2 Removing and installing driver side interior locking button for central locking system E308
  290
• 4.4 Components - front door locks
  292
• 5 Lights and switches in rear doors
  294
• 5.2 Components - rear door locks
  294
• 6 Lights and switches in luggage compartment
  295
• 6.1 Removing and installing luggage compartment light W3
  295
• 6.2 Renewing luggage compartment light bulb
  296
• 6.3 Removing and installing rear lid handle release button E234
  296
• 7 Lights and switches in roof trim
  297
• 7.1 Front interior and reading lights
  297
• 7.2 Removing and installing sun blind and sunroof button E437
  303
• 7.3 Rear interior and reading lights
  303
• 7.5 Right interior light W17
  307
• 8 Lights and switches in centre console
  309
• 8.1 Removing and installing buttons in centre console storage compartment
  309
• 8.2 Electromechanical parking brake button and auto-hold button
  309
• 8.3 Removing and installing AC/DC converter with socket, 12 V - 230 V U13
  311
• 9 Horn
  314
• 9.1 Removing and installing treble horn H2 and bass horn H7
  314
• 9.2 Checking treble horn H2 and bass horn H7
  315
• 9.3 Horn plate H
  315
• 10 Immobiliser
  316
• 10.1 General description
  316
• 10.2 Immobiliser control unit J362
  316
• 10.3 Ignition key
  317
• 10.4 New identity on renewing all components
  317
• 11 Anti-theft alarm (ATA)
  318
• 11.1 General description
  318
• 11.2 Activating and deactivating anti-theft alarm
  318
• 11.4 Removing and installing interior monitoring sensor and vehicle inclination sender
  319
• 11.5 Central locking and anti-theft alarm system aerial R47
  320
• 11.6 Alarm horn H12
  321
• 11.7 Reading and adapting anti-theft alarm (ATA)
  322
• Wiring
  323
• 1 Vehicle diagnosis, testing and information systems
  323
• 2 Fuse holder
  324
• 2.1 Removing and installing fuse holder
  324
• 3 Relay carriers
  325
• 3.1 Removing and installing dash panel relay carrier
  325
• 3.2 Removing and installing relay carrier on onboard supply control unit
  325
• 4 Electronics boxes
  328
• 4.1 Electronics box on left side of engine compartment
  328
• 5 Control units
  332
• 5.1 Onboard supply control unit J519 , vehicles to 05/09
  332
• 5.2 Onboard supply control unit J519 , vehicles from 06/09
  334
• 5.3 Convenience system central control unit J393 , vehicles up to 05/2009
  337
• 5.4 Data bus diagnostic interface J533 (gateway)
  340
• 5.5 Trailer detector control unit J345
  343
• 6 Wiring harness and connector repairs
  345