Electrical system

Chapter overview

• Starter, current supply, CCS
  1
• 1 Battery
  1
• 1.1 General description - battery
  1
• 1.2 Disconnecting and connecting battery
  1
• 1.3 Removing and installing battery
  7
• 1.4 Removing and installing battery tray
  11
• 1.5 Removing and installing battery isolation relay for additional battery
  12
• 1.6 Removing and installing battery monitor control unit J367
  13
• 1.7 Checking battery
  13
• 1.8 Charging battery
  13
• 2 Starter motor
  14
• 2.1 Removing and installing starter
  14
• 3 Alternator
  21
• 3.1 Assembly overview - alternator
  21
• 3.2 Removing and installing alternator
  24
• 3.3 Checking alternator
  30
• 3.4 Repairing alternator
  31
• 3.5 Checking poly V-belt
  37
• 4 Cruise control system (CCS)
  39
• 5 Engine start/stop system, vehicles up to 05.2011
  40
• 5.1 General description - engine start/stop system, vehicles up to 05.2011
  40
• 5.2 Overview of fitting locations - engine start/stop system
  41
• 5.3 Removing and installing main switch for start/stop system
  42
• 5.4 Removing and installing clutch pedal switch
  44
• 6 Engine start/stop system, vehicles as of 06.2011
  45
• 6.1 General description - engine start/stop system, vehicles as of 06.2011
  45
• 6.2 Removing and installing Start/Stop operation button E693
  46
• 6.3 Removing and installing battery monitor control unit J367
  47
• 6.4 Removing and installing battery regulation control unit J840
  48
• 6.5 Removing and installing voltage stabiliser J532
  49
• Gauges, instruments
  51
• 1 Dash panel insert
  51
• 1.1 General description - dash panel insert
  51
• 1.2 Removing and installing dash panel insert
  51
• 1.3 Pin assignment - dash panel insert
  53
• 1.4 Warning lamp symbols in dash panel insert
  53
• 1.5 Coding dash panel insert
  60
• 1.6 Removing and installing ambient temperature sensor
  60
• 2 Horn
  62
• 2.1 Removing and installing horn or dual tone horn H1 , vehicles up to 2010
  62
• 2.2 Removing and installing horn or dual tone horn H1 , vehicles as of 2011
  63
• 3 Tachograph “DTCO 1381”
  66
• 3.1 General description - tachograph “DTCO 1381”
  66
• 3.2 Overview of fitting locations - tachograph “DTCO 1381”
  68
• 3.3 Removing and installing tachograph “DTCO 1381”
  68
• 3.4 Messages displayed on tachograph “DTCO 1381”
  70
• 3.5 Connector pin assignment - tachograph “DTCO 1381”
  72
• 3.6 Removing and installing tachograph sender
  72
• 3.7 Renewing tachograph sender
  74
• Windscreen wash/wipe system
  77
• 1 windscreen wiper system
  77
• 1.1 Removing and installing wiper arms
  77
• 1.2 Removing and installing wiper frame with linkage and wiper motor
  78
• 1.3 Removing and installing wiper blade
  80
• 1.4 Adjusting wiper blade park position
  81
• 1.5 Removing and installing rain sensor
  81
• 2 Windscreen washer system
  84
• 2.1 Assembly overview - windscreen washer system
  84
• 2.2 Removing and installing washer fluid reservoir
  85
• 2.3 Removing and installing washer pump for windscreen washer system
  86
• 2.4 Removing and installing windscreen washer system spray jets
  87
• 2.5 Adjusting windscreen washer system spray jets
  88
• 3 Rear window wiper system
  89
• 3.1 Removing and installing rear window wiper arm
  89
• 3.2 Removing and installing rear window wiper motor
  90
• 3.3 Adjusting rear window wiper blade park position
  92
• 3.4 Removing and installing rear window wiper blade
  92
• 4 Rear window washer system
  94
• 4.1 Removing and installing washer pump for rear window washer system
  94
• 4.2 Removing and installing rear window spray jet
  94
• 4.3 Adjusting spray jet for rear window washer system
  95
• 5 Headlight washer system
  96
• 5.1 Removing and installing headlight washer system pump
  96
• 5.2 Removing and installing spray jet pop-up cylinders
  96
• 5.3 Removing and installing spray jet retainer
  99
• 5.4 Adjusting headlight washer system spray jets
  100
• 6 Washer fluid line hose couplings
  101
• 7 Hose repair
  102
• Lights, bulbs, switches - exterior
  103
• 1 Headlights
  103
• 1.1 Assembly overview - headlight
  103
• 1.2 Removing and installing headlight
  104
• 1.3 Adjusting headlights
  107
• 1.4 Removing and installing front turn signal bulb
  107
• 1.5 Removing and installing side light bulb
  108
• 1.6 Removing and installing daytime running light bulb L174/L175 /side light bulb
  109
• 1.7 Removing and installing headlight dipped beam bulb
  111
• 1.8 Removing and installing headlight main beam bulb
  112
• 1.9 Converting headlights for driving on the left or right
  114
• 1.10 Removing and installing headlight range control motor
  118
• 1.11 Installing repair kit for headlight housing
  119
• 2 Fog lights
  122
• 2.1 Removing and installing fog light
  122
• 2.2 Removing and installing fog light bulb
  123
• 2.3 Adjusting fog lights
  123
• 3 Side turn signals
  124
• 3.1 Removing and installing turn signal repeater in exterior mirror
  124
• 3.2 Removing and installing turn signal repeater in wing
  125
• 3.3 Removing and installing bulb for turn signal repeater in wing
  128
• 3.4 Removing and installing roof-mounted turn signal repeater
  129
• 3.5 Removing and installing bulb for roof-mounted turn signal repeater
  130
• 4 Tail lights
  132
• 4.1 Assembly overview - tail lights
  132
• 4.2 Removing and installing tail light cluster
  134
• 4.3 Removing and installing tail light bulbs
  136
• 5 High-level brake light
  138
• 5.1 Removing and installing high-level brake light
  138
• 5.2 Removing and installing bulb for high-level brake light M25
  139
• 6 Number plate light
  140
• 6.1 Removing and installing number plate light, panel van or Kombi vehicles
  140
• 7 Side marker light
  142
• 7.1 Removing and installing side marker light
  142
• 7.2 Removing and installing bulb for side marker light
  142
• 8 Steering column switch module (SCSM)
  144
• 8.1 Removing and installing steering column switch module (SCSM)
  144
• 9 Parking aid
  146
• 9.1 General description - parking aid system
  146
• 9.2 Assembly overview – parking aid
  146
• 9.3 Removing and installing parking aid control unit
  148
• 9.4 Removing and installing front parking aid display and warning buzzer
  149
• 9.5 Removing and installing rear parking aid warning buzzer
  150
• 9.6 Removing and installing front parking aid senders
  151
• 9.7 Removing and installing rear parking aid senders
  152
• 9.8 Removing and installing display unit in exterior mirror
  154
• 10 Tyre pressure monitoring (TPM)
  155
• 10.1 General description - tyre pressure monitoring (TPM)
  155
• 10.2 Removing and installing tyre pressure monitor control unit
  156
• 10.3 Calibrating tyre pressure monitor control unit
  157
• 10.4 Removing and installing tyre pressure sensor
  157
• 11 Towing bracket
  158
• 11.1 Removing and installing trailer detector control unit
  158
• 12 Reversing warning sender
  159
• 12.1 Removing and installing reverse warning sender
  159
• Lights, bulbs, switches - interior
  160
• 1 Lights and controls in the dash panel
  160
• 1.1 Removing and installing light switch
  160
• 1.2 Removing and installing headlight range control regulator
  162
• 1.3 Removing and installing controls in centre of dash panel
  162
• 1.4 Removing and installing switch units on left and right next to steering wheel
  164
• 1.5 Removing and installing glove compartment light
  167
• 1.6 Removing and installing bulb for glove compartment light
  168
• 2 Lights and controls in front doors
  170
• 2.1 Removing and installing window regulator switch in front doors
  170
• 3 Lights and controls in sliding doors
  172
• 3.1 Removing and installing electric sliding door control unit
  172
• 3.2 Removing and installing electric sliding door button in dash panel
  172
• 3.3 Removing and installing electric sliding door button in B-pillar
  173
• 3.4 Removing and installing electric sliding door warning buzzer
  173
• 4 Lights and controls in the centre console
  174
• 4.1 Removing and installing ashtray illumination bulb
  174
• 5 Lights and controls in the roof trim
  175
• 5.1 Removing and installing front interior light
  175
• 5.2 Removing and installing bulb for front interior light
  178
• 5.3 Removing and installing rear interior light
  178
• 5.4 Removing and installing bulb for rear interior light
  180
• 6 Lights and controls in engine compartment
  182
• 6.1 Removing and installing bonnet contact switch
  182
• 7 Other interior lights and controls
  184
• 7.1 Removing and installing entry light
  184
• 7.2 Removing and installing bulb for entry light
  185
• 8 Horn plate
  186
• 8.1 Removing and installing horn plate in steering wheel
  186
• 9 Cigarette lighter, socket
  188
• 10 Anti-theft alarm
  189
• 10.1 General description - anti-theft alarm system
  189
• 10.2 Overview of fitting locations - anti-theft alarm system
  190
• 10.3 Removing and installing the roof electronics control unit
  192
• 10.4 Renew roof electronics control unit
  193
• 11 Immobiliser
  194
• 11.1 General description of immobiliser
  194
• 11.2 Online system test - immobiliser
  194
• 11.3 Adapting immobiliser after renewal of various components
  195
• 12 Front camera for assist systems
  198
• 12.1 Removing and installing front camera for driver assist systems R242
  198
• 12.2 Calibrating front camera for driver assist systems R242
  199
• 13 Ignition/starter switch and lock cylinder
  200
• 13.1 Removing and installing electronic ignition lock D9
  200
• Wiring
  203
• 1 Relay carriers, fuse holders, electronics boxes
  203
• 1.1 Overview of fitting locations - fuse holder and relay carrier
  203
• 1.3 Removing and installing fuse holder D SD
  204
• 1.4 Removing and installing fuse holder A SA
  205
• 1.5 Relay carrier in seat console of front left seat
  206
• 2 Control units
  208
• 2.1 Removing and installing onboard supply control unit
  208
• 2.2 Removing and installing control unit for special functions
  209
• 2.3 Removing and installing door control unit
  212
• 2.4 Removing and installing fuel pump control unit
  212
• 2.5 Removing and installing air compressor protection control unit
  213
• 3 Connectors
  214
• 3.1 Repairing electrical wiring harnesses and plug-in connections
  214
• 4 Renewing Lambda probe
  215
• 5 Vehicle diagnosis, testing and information systems
  216