Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSBMW2006330I AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTMEMORY MODULESGENERAL ELECTRICAL SYSTEM - REPAIR - E90/91
2006 BMW 330i Automatic
General Electrical System - Repair - E90/91
2006 BMW 330i AutomaticSECTION General Electrical System - Repair - E90/91
- 00 Troubleshooting
- 12 00 ... Instructions on starting aid
- 12 00 ... Instructions for disconnecting and connecting battery
- 61 00 ... Battery
- 61 00 ... Diagnosis for Condition Based Service
- 61 00 ... Notes on handling optical fibers
- 61 00 ... Repairing airbag cables
- 61 00 ... Safety instructions for handling vehicle battery
- 32 00 ... Teaching in centre position for power steering (active front steering) (from 03/2007)
- 61 20 908 Performing battery "power reset" (for programming/coding control unit(s))
- 12 Auxiliary cable
- 61 12 ... General information on intelligent battery sensor (IBS)
- 61 12 002 Replacing battery positive lead (from battery to luggage compartment connector)
- 61 12 004 Replacing battery positive lead (from luggage compartment connector to engine bulkhead connector)
- 61 12 013 Replacing battery negative lead
- 61 12 200 Replacing wiring harness in left or right front door
- 61 12 210 Replacing wiring harness in left or right rear door
- 13 Plug connection, terminals, fuse box
- 61 13 Butt connector for repairing a plug connection
- 61 13 Crimping stop parts
- 61 13 Cutting to length and stripping insulation from cables
- 61 13 ... DME master relay connector
- 61 13 Installing fan connector for retrofitting/repairs
- 61 13 Opening plug housings and removing contacts of different plug systems
- 61 13 Special tools for wiring harness repairs
- 61 13 .. Unlocking and disconnecting different plug connections
- 61 13 ... Base of tab connector housings
- 61 13 ... Crimping Micro Power Quadlock contacts (MPQ)
- 61 13 ... Crimping Micro Quadlock System contacts (MQS)
- 61 13 ... Crimping annular contacts
- 61 13 ... Crimping optical fibres
- 61 13 ... Cutting off, stripping insulation and cutting optical fibres to length
- 61 13 ... In-line plugs, 30-pin, Hybrid System MQS/MPQ
- 61 13 ... Plug housing, LCC contact (load current contact)
- 61 13 ... Relay carrier
- 61 13 ... Repairing ribbon cables
- 61 13 ... Replacing interior fuse box for cars before 09/2005 with one with a new build date
- 61 13 ... Removing and installing/replacing OBD-II socket
- 61 13 ... Retaining bracket
- 61 13 ... Socket housing (radio plug), Hybrid System MQS/MPQ
- 61 13 ... Treating cables and fibre-optic cables
- 61 13 050 Removing and installing/replacing interior fuse box
- 61 31 134 Removing and installing/replacing USB/audio interface connecting socket
- 14 Distribution box, power
- 20 Battery
- 61 20 ... Threshold values for battery inspection of all battery (telephone except for telephone battery)
- 61 20 ... AGM battery
- 61 20 ... Battery charging
- 61 20 ... Battery open-circuit current test
- 61 20 900 Disconnecting and connecting battery negative lead
- 61 20 908 Performing battery "power reset" (for programming/coding control unit(s))
- 21 Battery-Vapour separate
- 31 Switch
- 61 31 ... Overview of switches
- 61 31 006 Removing and installing (replacing) fixture for steering column stalk
- 61 31 011 Removing and installing/replacing volute spring cassette
- 61 31 023 Removing and installing/replacing Start/Stop switch
- 61 31 037 Removing and installing/replacing light control unit
- 61 31 043 Removing and installing or replacing roof switch centre
- 61 31 052 Removing and installing/replacing centre console switch cluster (without CCC/ASK)
- 61 31 054 Removing and installing/replacing centre console switch cluster (with CCC/ASK)
- 61 31 066 Removing and installing/replacing hotel setting switch
- 61 31 068 Removing and installing/replacing switch for passenger airbag deactivation
- 61 31 079 Removing and installing/replacing switch for hazard warning flashers/central locking
- 61 31 083 Removing and installing/replacing switch for unlocking rear lid
- 61 31 101 Removing and installing/replacing switch for backrest width adjustment
- 61 31 113 Removing and installing/replacing both shift paddles for automatic transmission
- 61 31 115 Replacing rocker switch for side window operation (switch cluster, front)
- 61 31 116 Replacing rocker switch for side window operation (rear)
- 61 31 122 Removing and installing / replacing tow hitch switch
- 61 31 133 Removing and installing/replacing AV connection socket
- 61 31 192 Replacing knob for controller
- 61 31 195 Removing and installing (replacing) front controller
- 61 31 204 Replacing switch combination for seat adjustment
- 61 31 208 Removing and installing/replacing switch for lumbar support
- 61 31 221 Removing and installing/replacing both multifunction steering wheel switches
- 61 31 229 Removing and installing/replacing both switches on sport steering wheel
- 61 31 241 Removing and installing/replacing engine hood contact switch
- 61 31 255 Replacing switch for door mirror
- 61 31 270 Removing and installing/replacing switch for reversing light (DME)
- 61 31 299 Removing and installing/replacing clutch switch module
- 61 31 310 Replacing brake light switch
- 61 31 382 Replacing level switch for coolant
- 61 31 492 Replacing level switch for windscreen washer system
- 61 31 996 Carry out steering angle sensor adjustment
- 33 Horn
- 35 ECUs, Modules
- 32 43 010 Removing and installing/replacing control unit for active front steering
- 61 35 ... Overview of control units
- 61 35 ... Notes on ESD protection (Electro Static Discharge)
- 61 35 001 Removing and installing (replacing) trailer module
- 61 35 015 Removing and installing (replacing) control unit for Car Access System
- 61 35 080 Removing and installing (replacing) control unit for left or right seat adjustment (front seat)
- 61 35 095 Removing and installing / replacing control unit for seat heating
- 61 35 107 Removing and installing/replacing Junction Box electronics
- 61 35 115 Removing and installing/replacing footwell module
- 61 35 177 Removing and installing (replacing) rain/light sensor
- 61 35 679 Initializing rain/light sensor
- 61 35 950 Removing and installing (replacing) control unit for comfort access system
- 61 35 953 Removing and installing/replacing interior antenna for comfort access system
- 61 35 954 Removing and installing/replacing interior antenna for comfort access system (rear)
- 61 35 970 Removing and installing/replacing rear luggage compartment antenna for comfort access system
- 61 35 975 Removing and installing/replacing bumper antenna for comfort access system
- 64 11 970 Replacing fogging sensor
- Vehicle programming and coding
- 36 Relays
- 61 Windscreen wipers
- 61 61 ... Overview of windscreen wiper and washer system
- 61 61 01. Adjusting left or right windscreen wiper
- 61 61 010 Checking/adjusting contact angle of windscreen wiper arms on windscreen
- 61 61 041 Replacing both windscreen wiper blades
- 61 61 100 Removing and installing/replacing both windscreen wiper arms
- 61 61 270 Removing and installing/replacing bracket for windscreen wiper system complete with motor
- 67 Headlight washer system
- 71 Window washer system
RENDER: 1.0x
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.