Electrical system

Chapter overview

• Technical data
  1
• 1 Safety indications
  1
• 1.1 Safety measures for test drives with testing and measuring equipment
  1
• 2 Repair instructions
  2
• 2.1 Contact corrosion
  2
• 2.2 Connection installation and fastening
  2
• Starter, current supply, CCS
  3
• 1 Battery
  3
• 1.1 Battery A - assembly overview
  3
• 1.2 Battery - remove and install
  4
• 1.3 Battery - disconnect and connect
  6
• 1.4 Battery Console A - remove and install
  9
• 1.5 Battery A - check
  11
• 1.6 Battery A - charging
  11
• 2 Alternator
  12
• 2.1 Generator - assembly overview
  12
• 2.2 Generator (Alternator) C - remove and install
  13
• 2.3 Generator (Alternator) C - check
  15
• 2.4 Poly-V belt pulley - remove and install
  16
• 2.5 Voltage Regulator C1 - Disassembly and Assembly
  21
• 3 Starter
  25
• 3.1 StarterB - assembly overview
  25
• 3.2 Starter B - remove and install
  26
• 3.3 Starter B - check
  27
• 4 Speed regulator (GRA)
  28
• Gauges, instruments
  29
• 1 Instrument cluster
  29
• 1.1 Instrument cluster K - assembly overview
  29
• 1.2 Instrument cluster K - remove and install
  31
• 1.3 Combined instrument K - replace
  33
• 1.4 Instrument cluster K - pin assignment
  34
• 2 Horns
  35
• 2.1 Treble tone horn H2 - assembly overview
  35
• 2.2 Treble tone horn H2 - remove and install
  36
• 2.3 Horn plate H
  37
• Windscreen wash/wipe system
  38
• 1 Windscreen wiper system
  38
• 1.1 Wiper system - assembly overview
  39
• 1.2 Windscreen wiper blade resting position - adjust
  40
• 1.3 Windscreen wiper blade - remove and install
  42
• 1.4 Windscreen wiper arms - remove and install
  43
• 1.5 Windscreen wiper rubber - replace
  45
• 1.6 Windscreen wiper mechanism - remove and install
  47
• 1.7 Windscreen wiper motor V - disassemble and assemble
  49
• 1.8 Rain and light sensor G397 - remove and install
  51
• 1.9 Rain and light sensor - repair
  54
• 2 Windscreen washer system
  57
• 2.1 Windscreen washer system - assembly overview
  57
• 2.2 Reservoir for the windscreen and rear window washer system - remove and install
  58
• 2.4 Windscreen washer system spray nozzles - replace
  61
• 2.5 Windscreen washer system spray nozzles - adjust
  62
• 3 Rear window wiper system
  63
• 3.1 Rear window wiper system - assembly overview
  63
• 3.2 Rear window wiper blade - remove and install
  64
• 3.3 Rear window wiper arm - remove and install
  65
• 3.4 Rear window wiper arm - adjust
  66
• 3.5 Rear window wiper motor - remove and install
  67
• 4 Rear window washer system
  69
• 4.1 Rear window washer system - assembly overview
  69
• 4.2 Rear window washer system spray nozzle - replace
  70
• Lights, bulbs, switches - exterior
  72
• 1 Main headlights
  72
• 1.1 Main headlights - assembly overview
  72
• 1.2 Main Headlights - remove and install
  73
• 1.3 Main headlights - Position adjustment
  75
• 1.4 Front turn signal bulb M5 and/orM7 - replace
  77
• 1.5 Headlights - Install housing repair kit
  79
• 1.6 Main bean/dipped beam lamp (version 1) - replace
  82
• 1.7 Main bean/dipped beam lamp (version 2) - replace
  83
• 1.8 Front side light M1 and/orM3 - replace
  84
• 2 Fog lights
  87
• 2.1 Fog lights - Assembly overview
  87
• 2.2 Fog lights - Assembly overview
  88
• 2.3 Fog lights - remove and install
  89
• 2.4 Fog lights - remove and install
  90
• 2.5 Fog light lamp - replace
  91
• 3 Headlights - check adjustment
  93
• 3.2 Headlights - adjust
  96
• 4 Turn signal repeater
  99
• 4.1 Side indicator lights incorporated to external rear-view mirrors
  99
• 5 Tail lights
  100
• 5.1 Tail lights - Assembly overview
  100
• 5.2 Tail light - remove and install
  101
• 5.3 Bulb support - disassemble and assemble
  103
• 5.4 Tail light bulb - replace
  104
• 5.5 Fog light lamp - replace
  104
• 5.6 Tail light and brake light bulb - replace
  105
• 5.7 Reverse gear light bulb - replace
  105
• 5.8 Turn signal bulb - replace
  106
• 6 Auxiliary brake light
  107
• 6.1 Brakelight bulb M25 - remove and install
  107
• 7 License plate light
  110
• 7.1 Number plate light - remove and install
  110
• 7.2 License plate light X - replace the light bulb
  111
• 8 Steering column switch module (SMLS)
  112
• 8.3 Steering lock set - remove and install
  116
• 8.4 Ignition switch (version 1) - remove and install
  118
• 8.5 Ignition switch (version 2) - remove and install
  119
• 8.6 Test the ignition and starter switches
  120
• 8.7 Key cylinder - remove and install
  121
• 9 Auxiliary parking system
  124
• 9.1 Locating defects and indicating faults
  125
• 9.2 Parking aid - assembly overview
  125
• 9.3 Warning buzzer for rear parking aid H15 - remove and install
  126
• 9.4 Adjust the volume and frequency of the rear parking aid warning buzzer
  126
• 9.5 Rear parking aid sensor - remove and install
  126
• 9.6 Control unit for parking aid - remove and install
  129
• 9.7 Adjust the parking aid control unit
  130
• Lights, bulbs, switches - interior
  131
• 1 Control elements and lights on the dash board
  131
• 1.1 Light switch - remove and install
  131
• 1.2 Centre dash board switch module - remove and install
  132
• 2 Control elements and lights on front doors
  134
• 2.1 Switch elements in door lining
  134
• 2.2 Front left window control switch E40 and/or E41 - remove and install
  136
• 2.4 Switch for int. locking, driver side E150 - remove and install
  138
• 3 Roof lining control elements and lights
  139
• 3.1 Front interior light W1- remove and install
  139
• 3.2 Front interior light W1 with reading light
  141
• 4 Anti-theft alarm system
  145
• 4.1 Anti-theft alarm system horn H8 - remove and install
  145
• 5 Vehicle immobilizer
  146
• 5.1 Immobilizer control unit J362 - remove and install
  146
• 5.2 Reader coil - remove and install
  147
• 6 12 Volt socket
  148
• 6.1 12 volt socket U5 - assembly overview
  148
• 6.2 12 volt socket U5 - remove and install
  148
• 6.3 12 Volt socket U5 - replace
  151
• Wiring
  154
• 1 Relay support, fuse supports, fuse boxes
  154
• 1.1 Fuse box - remove and install
  154
• 1.2 Fuse holder and relay support in the fuse box - remove and install
  156
• 2 Control units
  166
• 2.1 Onboard supply control unit - remove and install
  166
• 2.2 Data bus diagnostics interface - remove and install
  170
• 3 Connectors
  171
• 3.1 Connectors and electric cables harnesses - repair
  171
• 4 Unlocking and disassembling the terminals
  172
• 5 Aerial cable repairs
  173
• 6 Vehicle diagnostic, testing and information system
  174
• 6.1 Online system test
  174