Manual sections

Wiring diagrams

• Abbreviations
• Accessory Drive Belts
• Adjustments
• Airbag
• Application
• Audio, Navigation, Anti-Theft and Restraints (Repair)
• Automatic HVAC System
• Automatic Trans
• Axle Shafts
• Basic Trouble Shooting
• Body Electrical
• Body Equipment - Repair
• Brakes
• Brakes - Repair
• Breakout Boxes & Connectors - Overview
• Cabin Air Filter
• Charging System
• Check Lists
• Clutch - Repair
• Clutches Manual & Hydraulic
• Coding and Programming - Overview
• Coding and Programming - Overview - All Models
• Communication Devices
• Computer Relearn
• Convertible Top & Hardtop - Repair
• Cooling Fan
• Cooling System (Mechanical)
• Diagnostic Connector Locations
• Diagnostic Equipment - Overview - All
• Door Locks & Anti-Theft Systems
• Drive Cycles
• Driveline/axles
• Driveshaft & Universal Joints
• DTC Index
• Electrical Component Locations
• Electronic Suspension
• Electronic Transmission Control - Overview
• Emission Applications
• Engine
• Engine - Repair (m54)
• Engine Controls - System & Component Testing
• Engine Electrical System - Repair
• Engine Management - Overview
• Engine Performance
• Entertainment Systems
• Exhaust
• Exterior Body Panels
• Exterior Lights
• Exterior/interior Trim
• Fuel System
• Fuses & Circuit Breakers
• Gauges & Instrument Panels
• General Electrical System - Repair
• Heating and Air Conditioning - Repair
• Horns
• Identification
• Lights - Repair
• Manual & Power Steering
• Manual Trans
• MAP Guidelines
• Mechanical
• Mechanical - Hydraulic
• Metric Conversions
• Mode 6
• Oem General Information
• On Board Monitor and Navigation Systems - Overview - e38, ee39, e46, e52, e65 & e85
• On-Vehicle Servicing - (a5s 360r/390r)
• Pin Voltage Charts
• Reset Procedures
• Restraints
• Seats
• Seats - Repair
• Specifications
• Starter
• Steering
• Steering Column
• Steering Gear
• Steering Linkage
• Sun Roof/t-Top/convertible Top
• Suspension - Front
• Suspension - Rear
• Suspension Front
• Testing & Diagnostics
• Traction Control Disable
• Transmission
• Wheel & Tire System
• Wheel Alignment

Repair manual

Engine Electrical System - Repair BMW Z4 E85/E86

Step-by-step instructions on "Engine Electrical System - Repair" for BMW Z4 E85/E86 (2002–2005). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

27subsections

27articles

68illustrations

12 00 Contents of Engine Electrical System General

1 article

• 12 00 Contents of Engine Electrical System General

12 00... Instructions for disconnecting and connecting battery

1 article

• 12 00... Instructions for disconnecting and connecting battery

12 13 Notes on checking ignition system

1 article

• 12 13 Notes on checking ignition system

12 12 011 Replacing all spark plugs

1 article

• 12 12 011 Replacing all spark plugs 1

12 13... Checking secondary signal for stationary ignition distribution

1 article

• 12 13... Checking secondary signal for stationary ignition distribution 8

12 13 009 Checking rod-type ignition coils (M54)

1 article

• 12 13 009 Checking rod-type ignition coils (M54) 7

12 13 511 Replacing ignition coils (M54)

1 article

• 12 13 511 Replacing ignition coils (M54) 2

12 14 521 Replacing pulse generator on crankshaft (M54/M56)

1 article

• 12 14 521 Replacing pulse generator on crankshaft (M54/M56) 1

12 14 523 Replacing pulse generator on inlet camshaft (M52TU / M54 / M56)

1 article

• 12 14 523 Replacing pulse generator on inlet camshaft (M52TU / M54 / M56) 3

12 14 524 Replacing pulse generator on exhaust camshaft (M52TU, M54, M56)

1 article

• 12 14 524 Replacing pulse generator on exhaust camshaft (M52TU, M54, M56) 2

12 14 600 Replacing knock sensor (M52TU, M54,M56)

1 article

• 12 14 600 Replacing knock sensor (M52TU, M54,M56) 4

12 14 700 Coding control module (DME)

1 article

• 12 14 700 Coding control module (DME)

12 14 705 Programming control unit (DME)

1 article

• 12 14 705 Programming control unit (DME)

12 31... Replacing alternator belt pulley

1 article

• 12 31... Replacing alternator belt pulley 1

12 31 009 Checking alternator (BSD)

1 article

• 12 31 009 Checking alternator (BSD) 7

12 31 009 Checking alternator and regulator switch

1 article

• 12 31 009 Checking alternator and regulator switch 8

12 31 020 Removing and installing or replacing alternator (M54)

1 article

• 12 31 020 Removing and installing or replacing alternator (M54) 3

12 41 020 Removing and installing/replacing starter motor (M54)

1 article

• 12 41 020 Removing and installing/replacing starter motor (M54) 2

12 41 041 Replacing solenoid switch

1 article

• 12 41 041 Replacing solenoid switch 3

12 42 540 Replacing safety battery terminal (SBK)

1 article

• 12 42 540 Replacing safety battery terminal (SBK) 5

12 51 001 Replacing wiring harness section for engine (M54)

1 article

• 12 51 001 Replacing wiring harness section for engine (M54)

12 51 100 Replacing wiring harness section for ignition coils (M54)

1 article

• 12 51 100 Replacing wiring harness section for ignition coils (M54) 3

12 61 250 Removing and installing/replacing oil temperature sensor (M54)

1 article

• 12 61 250 Removing and installing/replacing oil temperature sensor (M54) 1

12 61 280 Removing and installing/replacing oil pressure sensor (M54)

1 article

• 12 61 280 Removing and installing/replacing oil pressure sensor (M54) 1

12 61 285 Replacing level switch for engine oil

1 article

• 12 61 285 Replacing level switch for engine oil 1

12 61 285 Replacing oil level sensor

1 article

• 12 61 285 Replacing oil level sensor 1

12 90 100 Replacing fan for electronics box

1 article

• 12 90 100 Replacing fan for electronics box 4