Electrical system

Kapitelübersicht

• Technical data
  1
• 1 Safety information
  1
• 1.1 Safety measures when working on vehicles with start/stop system
  1
• 1.3 Application notes and safety information for LED headlights
  1
• 2 Repair instructions
  2
• 2.1 Rules for cleanliness
  2
• 2.2 Contact corrosion
  2
• 2.3 ESD workplace
  2
• 2.4 Routing and attachment of lines
  3
• Starter, current supply, CCS
  4
• 1 Battery
  4
• 1.1 Assembly overview – battery
  4
• 1.2 Checking battery
  5
• 1.3 Charging battery
  6
• 1.4 Disconnecting and connecting battery
  6
• 1.5 Removing and installing battery
  9
• 1.6 Removing and installing battery tray
  11
• 1.7 Adapting battery monitor control unit J367
  12
• 1.8 Removing and installing earth wire with battery monitor control unit J367
  12
• 2 Alternator
  13
• 2.1 Assembly overview - alternator
  13
• 2.2 Checking alternator
  13
• 2.3 Removing and installing alternator
  13
• 2.4 Checking poly V-belt
  15
• 2.5 Removing and installing poly V-belt pulley
  15
• 2.6 Removing and installing voltage regulator
  21
• 3 Starter motor
  23
• 3.1 Assembly overview – starter
  23
• 3.2 Checking starter
  24
• 3.3 Removing and installing starter
  24
• 4 Cruise control system (CCS)
  30
• 5 Start/stop system
  31
• 5.1 General description - start/stop system
  31
• Gauges, instruments
  32
• 1 Dash panel insert
  32
• 1.1 Removing and installing dash panel insert KX2
  32
• 2 Horn
  34
• 2.1 Removing and installing left horn H33
  34
• Windscreen wash/wipe system
  36
• 1 Windscreen wiper system
  36
• 1.1 Assembly overview - windscreen wiper system
  36
• 1.2 Moving wipers to service position
  37
• 1.3 Removing and installing wiper blade
  38
• 1.4 Removing and installing wiper arms
  38
• 1.5 Adjusting wiper arms
  40
• 1.6 Removing and installing wiper motor V
  42
• 1.7 Deactivating APP function of wiper motor
  43
• 1.8 Removing and installing air humidity, rain and light sensor G823
  43
• 2 Windscreen washer system
  47
• 2.1 Assembly overview - windscreen washer system
  47
• 2.2 Removing and installing filler pipe for washer fluid reservoir
  49
• 2.3 Removing and installing washer fluid reservoir
  49
• 2.4 Removing and installing windscreen washer pump
  50
• 2.5 Removing and installing spray jets
  51
• 2.6 Adjusting spray jets
  52
• 3 Rear window wiper system
  53
• 3.1 Assembly overview - rear window wiper system
  53
• 3.2 Removing and installing wiper blade
  55
• 3.3 Removing and installing wiper arm
  56
• 3.4 Adjusting wiper arm
  57
• 3.5 Removing and installing rear window wiper motor V12
  59
• 4 Rear window washer system
  61
• 4.1 Assembly overview - rear window washer system
  61
• 4.2 Removing and installing washer fluid reservoir
  61
• 4.3 Removing and installing rear window washer pump
  62
• 4.4 Removing and installing spray jet
  62
• 4.5 Adjusting spray jet
  62
• 5 Washer fluid lines
  63
• 5.1 Washer fluid line hose couplings
  63
• 5.2 Repairing washer fluid lines
  63
• Lights, bulbs, switches - exterior
  64
• 1 Headlights
  64
• 1.1 Assembly overview – headlight
  64
• 1.2 Removing and installing headlight
  67
• 1.3 Adjusting headlights
  69
• 1.4 Adjusting headlight installation position
  69
• 1.5 Installing repair kit for headlight housing
  70
• 1.6 Removing and installing front turn signal bulb M5/M7
  72
• 1.7 Removing and installing headlight range control motor V48/V49
  73
• 1.8 Removing and installing headlight dipped beam bulb M29/M31
  74
• 1.9 Removing and installing headlight main beam bulb M30/M32
  75
• 1.10 Removing and installing bulbs for cornering light L148/L149
  76
• 1.11 Removing and installing output module 1 for LED headlights A31/A27
  76
• 1.13 Removing and installing headlight dipped beam bulb M29/M31, LED headlights
  79
• 1.14 Removing and installing headlight fan V407/V408, LED headlights
  81
• 1.15 Converting headlights from driving on right to driving on left
  82
• 2 Fog lights
  83
• 2.1 Removing and installing fog light
  83
• 2.2 Removing and installing fog light bulb L22/L23
  84
• 2.3 Removing and installing static cornering light bulb
  85
• 2.4 Adjusting fog lights
  85
• 3 Turn signal repeater
  86
• 3.1 Removing and installing turn signal repeater
  86
• 4 Tail lights
  87
• 4.1 Assembly overview - tail light cluster in body
  87
• 4.2 Removing and installing bulb carrier
  89
• 4.3 Removing and installing tail light cluster
  90
• 4.4 Removing and installing turn signal bulb M6/M8
  92
• 4.5 Removing and installing brake and tail light bulb M21/M22
  92
• 4.6 Removing and installing rear left fog light bulb L46
  93
• 4.7 Removing and installing reversing light bulb M16/M17
  93
• 5 High-level brake light
  94
• 5.1 Removing and installing high-level brake light
  94
• 5.2 Removing and installing bulb for high-level brake light M25
  97
• 6 Number plate light
  98
• 6.1 Removing and installing number plate light X4/X5
  98
• 7 Entry and start authorisation system
  100
• 7.1 Overview of fitting locations - entry and start authorisation system
  100
• 7.2 Removing and installing interface for entry and start system J965
  101
• 7.3 Removing and installing interior aerial 1 for entry and start authorisation R138
  102
• 7.4 Removing and installing entry and start authorisation aerial R200/R201
  103
• 8 Steering column switch module
  107
• 8.1 Assembly overview - steering column switch module
  107
• 8.2 Removing and installing steering column switch module
  109
• 8.3 Removing and installing turn signal switch E2
  112
• 8.4 Removing and installing cruise control system switch E45
  113
• 8.5 Removing and installing intermittent wiper switch E22
  113
• 8.6 Removing and installing ignition/starter switch
  113
• 8.7 Removing and installing lock cylinder
  114
• 8.8 Removing and installing steering lock housing
  115
• 9 Towing bracket
  117
• 9.1 Removing and installing trailer detector control unit J345
  117
• 9.2 Removing and installing trailer socket U10
  118
• Lights, bulbs, switches - interior
  120
• 1 Lights
  120
• 1.1 Removing and installing glove compartment light W6
  120
• 1.2 Removing and installing luggage compartment light W3
  120
• 1.3 Removing and installing Central locking SAFELOCK function warning lamp K133
  121
• 1.4 Removing and installing surround lighting W61/W62 in rear lid
  122
• 2 Controls
  124
• 2.1 Overview of fitting locations - controls in dash panel
  124
• 2.2 Overview of fitting locations - controls in front doors
  125
• 2.3 Overview of fitting locations - controls in centre console
  126
• 2.4 Removing and installing mirror adjustment switch E43/E168
  127
• 2.5 Removing and installing operating unit for window regulator in driver door E512
  128
• 2.7 Removing and installing door contact switch F2/F3
  130
• 2.8 Removing and installing rear door contact switches F10/F11
  130
• 2.9 Removing and installing contact strip in sliding door F353/F352
  131
• 2.10 Removing and installing glove compartment light switch E26
  132
• 2.11 Removing and installing front interior light WX1
  133
• 2.12 Removing and installing rear reading light W11/W12
  134
• 2.13 Removing and installing centre switch module in dash panel EX22
  134
• 2.14 Removing and installing operating unit for lighting EX59
  135
• 2.15 Removing and installing starter button E378
  136
• 2.17 Removing and installing rear interior light/reading light
  137
• 2.18 Removing and installing hazard warning light switch EX3
  138
• 2.19 Removing and installing front roof module
  138
• 2.20 Removing and installing emergency assistance call button E276
  139
• 3 Anti-theft alarm
  140
• 3.1 Overview of fitting locations – interior monitoring
  140
• 3.2 Removing and installing alarm horn H12
  140
• 3.3 Removing and installing anti-theft alarm sensor G578
  142
• 4 Immobiliser
  143
• 4.1 Removing and installing immobiliser control unit J362
  143
• 4.2 Removing and installing immobiliser reader coil D2
  143
• 5 Cigarette lighter, socket
  144
• 5.1 Removing and installing cigarette lighter U1
  144
• 5.2 Removing and installing socket illumination bulb L42
  144
• 5.3 Removing and installing rear cigarette lighter illumination bulb L32
  144
• 5.4 Removing and installing interior socket, 230 V, 110 V U11
  144
• Wiring
  146
• 1 Relay carriers, fuse holders, electronics boxes
  146
• 1.1 Overview of fitting locations - relay carriers, fuse holders, E-boxes
  146
• 1.2 Removing and installing electronics box (E-box)
  147
• 2 Select Control units
  150
• 2.1 Overview of fitting locations - control units
  150
• 2.2 Removing and installing onboard supply control unit J519
  151
• 2.3 Removing and installing data bus diagnostic interface J533
  153
• 2.4 Removing and installing rear lid control unit J605
  155
• 2.5 Removing and installing special vehicle control unit J608
  156
• 2.6 Coding special vehicle control unit
  157
• 3 Connectors
  158
• 3.1 Repairing electrical wiring harnesses and plug-in connections
  158
• 4 Releasing and dismantling connector housings
  159
• 5 Cleaning contact surfaces
  160
• 6 Repairing aerial wires
  161
• 7 Fibre optic cables
  162
• 8 Vehicle diagnosis, testing and information systems
  163