Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures (I01)
  • Fluids
  • Technical Bulletins
    • Campaigns
    • Safety Recalls
    • Tech Tips
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • Fuse & Relay Location (I3)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Anti-Theft Systems
    • Audio, Navigation And Anti-Theft - Repair - All I3 Models
    • Audio, Navigation And Anti-Theft - Special Tools - All I3 Models
    • Audio, Navigation And Information Systems - Tightening Torques - All I3 Models
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Collision/Avoidance
    • Distance Systems, Cruise Control - Repair - All I3 Models
  • Communication Devices
    • Communication Systems - Repair - All I3 Models
  • Cruise Control Systems
    • Distance Systems, Cruise Control - Repair - All I3 Models
  • Drivers Assistance Systems - ADAS
    • Distance Systems, Cruise Control - Repair - All I3 Models
  • Entertainment Systems
    • Audio, Navigation And Anti-Theft - Repair - All I3 Models
    • Audio, Navigation And Anti-Theft - Special Tools - All I3 Models
    • Audio, Navigation And Information Systems - Tightening Torques - All I3 Models
  • Exterior Lights
    • Lights - Repair - All I3 Models
    • Lights - Special Tools - All I3 Models
    • Lights - Technical Data - All I3 Models
    • Lights - Tightening Torques - All I3 Models
  • Gauges & Instrument Panels
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
    • Engine Electrical System - Repair - All I3 Models
    • Engine Electrical System - Special Tools - All I3 Models
    • Engine Electrical System - Tightening Torques - All I3 Models
    • Instruments - Repair - All I3 Models
    • Instruments - Special Tools - All I3 Models
    • Instruments - Tightening Torques - All I3 Models
  • Headlights
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
    • Lights - Repair - All I3 Models
    • Lights - Special Tools - All I3 Models
    • Lights - Technical Data - All I3 Models
    • Lights - Tightening Torques - All I3 Models
  • Horns
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Infotainment
    • Audio, Navigation And Anti-Theft - Repair - All I3 Models
    • Audio, Navigation And Anti-Theft - Special Tools - All I3 Models
    • Audio, Navigation And Information Systems - Tightening Torques - All I3 Models
  • Interior/Exterior Trim
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
  • Interior/Illumination Lights
    • Lights - Repair - All I3 Models
    • Lights - Special Tools - All I3 Models
    • Lights - Technical Data - All I3 Models
    • Lights - Tightening Torques - All I3 Models
  • Memory Modules
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Mirrors
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
  • Seats
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
    • Seats - Operating Fluids
    • Seats - Repair - All I3 Models
    • Seats - Special Tools - All I3 Models
    • Seats - Tightening Torques
  • Steering Column Switches
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Window Motors & Regulators
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Wiper/Washer Systems
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
• Body & Frame
  • Door Locks
    • Audio, Navigation And Anti-Theft - Repair - All I3 Models
    • Audio, Navigation And Anti-Theft - Special Tools - All I3 Models
    • Audio, Navigation And Information Systems - Tightening Torques - All I3 Models
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Exterior Body Panels
    • Body - Operating Fluids
    • Body - Special Tools - All I3 Models
    • Body - Tightening Torques - All I3 Models
    • Collision - Body Dimensions (I01)
    • Collision - Body Panel Repair (I01)
    • PAINTWORK - REPAIR - ALL i3 MODELS
    • Steering Gear Collision Warning
  • Exterior/Interior Trim
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
  • Frames, Subframes & Crossmembers
    • Steering Gear Collision Warning
  • Mirrors
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
  • Seats
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
    • Seats - Operating Fluids
    • Seats - Repair - All I3 Models
    • Seats - Special Tools - All I3 Models
    • Seats - Tightening Torques
  • Sun Roof/T-Top/Convertible Top
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
    • Slide/Tilt Roof - Repair - All I3 Models
    • Slide/Tilt Roof - Tightening Torques - All I3 Models
    • Sunroof And Convertible Top - Operating Fluids
  • Windows
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
    • Electrical Drives - Repair - All I3 Models
    • Electrical Drives - Special Tools - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
• Brakes
  • Mechanical - Hydraulic
    • Brakes - Repair - All I3 Models
    • Brakes - Special Tools - All I3 Models
    • Brakes - Technical Data - All I3 Models
    • Brakes - Tightening Torques - All I3 Models
    • Pedals - Operating Fluids
    • Pedals - Repair - All I3 Models
    • Pedals - Tightening Torques - All I3 Models
• Collision
  • Body Panels
    • Collision - Body Panel Repair (I01)
  • Collision - Body Dimensions (I01)
  • Paint & Coatings
    • PAINTWORK - REPAIR - ALL i3 MODELS
• Drivelines & Axles
  • Axle Shafts
    • Front Axle - Repair - All I3 Models
    • Front Axle - Special Tools - All I3 Models
    • Front Axle - Technical Data - All I3 Models
    • Front Axle - Tightening Torques - All I3 Models
    • Rear Axle - Operating Fluids
    • Rear Axle - Repair - All I3 Models
    • Rear Axle - Special Tools - All I3 Models
    • Rear Axle - Technical Data - All I3 Models
    • Rear Axle - Tightening Torques - All I3 Models
  • Differentials & Drive Axles
    • Front Axle - Repair - All I3 Models
    • Front Axle - Special Tools - All I3 Models
    • Front Axle - Technical Data - All I3 Models
    • Front Axle - Tightening Torques - All I3 Models
    • Rear Axle - Operating Fluids
    • Rear Axle - Repair - All I3 Models
    • Rear Axle - Special Tools - All I3 Models
    • Rear Axle - Technical Data - All I3 Models
    • Rear Axle - Tightening Torques - All I3 Models
  • Driveshaft & Universal Joints
    • Propeller Shaft - Operating Fluids
• Electrical
  • Body Electrical
    • Electrical System - Operating Fluids
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Charging Systems
    • Engine Electrical System - Repair - All I3 Models
    • Engine Electrical System - Special Tools - All I3 Models
    • Engine Electrical System - Tightening Torques - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Fuses & Circuit Breakers
    • Fuse & Relay Location (I3)
  • Gauges
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - All I3 Models
    • Body Equipment - Special Tools - All I3 Models
    • Body Equipment - Tightening Torques - All I3 Models
    • Engine Electrical System - Repair - All I3 Models
    • Engine Electrical System - Special Tools - All I3 Models
    • Engine Electrical System - Tightening Torques - All I3 Models
    • Instruments - Repair - All I3 Models
    • Instruments - Special Tools - All I3 Models
    • Instruments - Tightening Torques - All I3 Models
  • Horns
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Motors, Switches, Relays
    • Electrical System - Operating Fluids
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
  • Starter
    • Engine Electrical System - Repair - All I3 Models
    • Engine Electrical System - Special Tools - All I3 Models
    • Engine Electrical System - Tightening Torques - All I3 Models
  • Wiring Diagrams
    • Fuse & Relay Location (I3)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Cooling System (Mechanical)
    • Cooling System - Repair - All I3 Models
    • Cooling System - Special Tools - All I3 Models
    • Cooling System - Technical Data - All I3 Models
    • Cooling System - Tightening Torques - All I3 Models
    • Engine - Repair - Only I3 Models With Range Extender
    • Engine - Special Tools - Only I3 Models With Range Extender
    • Engine - Technical Data - Only I3 Models With Range Extender
    • Engine - Tightening Torques - Only I3 Models With Range Extender
    • Radiator - Operating Fluids
  • Exhaust
    • Exhaust System - Operating Fluids
    • Exhaust System - Repair - Only I3 Models With Range Extender
    • Exhaust System - Tightening Torques - Only I3 Models With Range Extender
  • Fuel System
    • Fuel Supply System - Operating Fluids
    • Fuel Supply System - Repair - Only I3 Models With Range Extender
    • Fuel Supply System - Special Tools - Only I3 Models With Range Extender
    • Fuel Supply System - Tightening Torques - Only I3 Models With Range Extender
    • Fuel System - Operating Fluids
    • Fuel System - Repair - Only I3 Models With Range Extender
    • Fuel System - Special Tools - Only I3 Models With Range Extender
    • Fuel System - Tightening Torques - Only I3 Models With Range Extender
  • Mechanical
    • Engine - Repair - Only I3 Models With Range Extender
    • Engine - Special Tools - Only I3 Models With Range Extender
    • Engine - Technical Data - Only I3 Models With Range Extender
    • Engine - Tightening Torques - Only I3 Models With Range Extender
    • Engine And Gearbox Mounting - Repair - All I3 Models
    • Engine And Gearbox Mounting - Special Tools - All I3 Models
    • Maintenance And General Information - Tightening Torques - All I3 Models
  • Starter
    • Engine Electrical System - Repair - All I3 Models
    • Engine Electrical System - Special Tools - All I3 Models
    • Engine Electrical System - Tightening Torques - All I3 Models
• Engine Performance
  • Emissions
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Engine - Repair - Only I3 Models With Range Extender
    • Engine - Special Tools - Only I3 Models With Range Extender
    • Engine - Technical Data - Only I3 Models With Range Extender
    • Engine - Tightening Torques - Only I3 Models With Range Extender
  • Fuel Delivery
    • Fuel Supply System - Operating Fluids
    • Fuel Supply System - Repair - Only I3 Models With Range Extender
    • Fuel Supply System - Special Tools - Only I3 Models With Range Extender
    • Fuel Supply System - Tightening Torques - Only I3 Models With Range Extender
    • Fuel System - Operating Fluids
    • Fuel System - Repair - Only I3 Models With Range Extender
    • Fuel System - Special Tools - Only I3 Models With Range Extender
    • Fuel System - Tightening Torques - Only I3 Models With Range Extender
  • Ignition System
    • Engine Electrical System - Repair - All I3 Models
    • Engine Electrical System - Special Tools - All I3 Models
    • Engine Electrical System - Tightening Torques - All I3 Models
  • Remove, Overhaul & Install
    • Engine Electrical System - Repair - All I3 Models
    • Engine Electrical System - Special Tools - All I3 Models
    • Engine Electrical System - Tightening Torques - All I3 Models
  • Tune-Up
    • Engine Electrical System - Repair - All I3 Models
    • Engine Electrical System - Special Tools - All I3 Models
    • Engine Electrical System - Tightening Torques - All I3 Models
• General Information
  • Abbreviations
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
  • Basic Trouble Shooting
    • Basic Trouble Shooting - General Information
    • Commonly Used Abbreviations - General Information
    • Emission Control Abbreviations
    • Engine Performance - Trouble Shooting - General Information
  • Brakes
    • Anti-Lock Brake Safety Precautions - General Information
    • Map - Brake Systems
    • Map - Routine Inspection Reference Guide
  • Check Lists
    • Symptom Check List Worksheet - General Information
  • Driveline/Axles
    • Drive Axle Noise Diagnosis - General Information
    • Gear Tooth Contact Patterns - General Information
    • Map - Drive Train & Transmission
    • Trouble Shooting - Clutches - General Information
  • Electrical
    • Map - Electrical Systems
    • Using lemon2025'S System Wiring Diagrams
  • Engine
    • Engine Overhaul Procedures - General Information
    • General Cooling System Service - General Information
  • Engine Performance
    • Electrostatic Discharge Warning - General Information
    • Engine Performance Diagnostic Routine Outline - General Information
    • Engine Performance Safety Precautions
    • Map - Engine Performance & Maintenance
    • Parasitic Load Explanation & Test Procedures - General Information
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
    • Waveforms - Injector Pattern Tutorial - General Information
  • Map - Exhaust Systems
  • Heating, Ventilation & A/C (HVAC)
    • Map - Heating, Ventilation, & Air Conditioning
  • Identification
    • CANADIAN Model Cross-Reference
  • Metric Conversions
    • Engine Displacement Conversion Table - ECAT
    • Metric Conversions
  • OEM General Information
    • Automatic Stop/Start Disable
    • Car Care Products - Operating Fluids
    • Functional Description -- I3_I01
    • Maintenance And General Information - Repair - All I3 Models
    • Maintenance And General Information - Special Tools - All I3 Models
    • Maintenance And General Information - Tightening Torques - All I3 Models
  • Reset Procedures
    • ATEQ TPMS Reset Procedure
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems
  • Specifications Index
    • Common Specs & Procedures (I01)
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • HVAC Control Systems
    • Heating And Air Conditioning - Repair - All I3 Models
    • Heating And Air Conditioning - Special Tools - All I3 Models
    • Heating And Air Conditioning - Technical Data - All I3 Models
    • Heating And Air Conditioning - Tightening Torques - All I3 Models
• Hybrid/Electric Powertrain
  • Battery Management Systems
    • General Electrical System - Repair
    • General Electrical System - Tightening Torques - All I3 Models
  • Electric Converters and Controllers
    • General Electrical System - Tightening Torques - All I3 Models
• Maintenance
  • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • Audio, Navigation And Anti-Theft - Repair - All I3 Models
    • Audio, Navigation And Anti-Theft - Special Tools - All I3 Models
    • Audio, Navigation And Information Systems - Tightening Torques - All I3 Models
    • General Electrical System - Repair
    • General Electrical System - Special Tools - All I3 Models
    • General Electrical System - Tightening Torques - All I3 Models
    • Restraints - Repair - All I3 Models
    • Restraints - Tightening Torques - All I3 Models
    • Steering And Wheel Alignment - Repair - All I3 Models
  • Restraints Control Systems
    • Restraints - Repair - All I3 Models
    • Restraints - Tightening Torques - All I3 Models
  • Seat Belts
    • Restraints - Repair - All I3 Models
    • Restraints - Tightening Torques - All I3 Models
• Steering
  • Electronic Steering
    • Steering And Wheel Alignment - Repair - All I3 Models
    • Steering Gear Collision Warning
  • Manual Steering
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Special Tools - All I3 Models
    • Steering And Wheel Alignment - Technical Data - All I3 Models
    • Steering And Wheel Alignment - Tightening Torques - All I3 Models
    • Steering Gear Collision Warning
  • Power Steering
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Special Tools - All I3 Models
    • Steering And Wheel Alignment - Technical Data - All I3 Models
    • Steering And Wheel Alignment - Tightening Torques - All I3 Models
    • Steering Gear Collision Warning
  • Steering Column
    • Steering And Wheel Alignment - Repair - All I3 Models
    • Steering Gear Collision Warning
  • Steering Control Systems
    • Steering Gear Collision Warning
  • Steering Gear
    • Steering And Wheel Alignment - Repair - All I3 Models
    • Steering Gear Collision Warning
  • Steering Linkage
    • Steering And Wheel Alignment - Repair - All I3 Models
    • Steering Gear Collision Warning
• Suspension
  • Electronic Suspension
    • Integrated Suspension Systems - Operating Fluids
    • Integrated Suspension Systems - Repair - All I3 Models
    • Integrated Suspension Systems - Tightening Torques - All I3 Models
  • Front Suspension
    • Front Axle - Repair - All I3 Models
    • Front Axle - Special Tools - All I3 Models
    • Front Axle - Technical Data - All I3 Models
    • Front Axle - Tightening Torques - All I3 Models
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Special Tools - All I3 Models
    • Steering And Wheel Alignment - Technical Data - All I3 Models
    • Steering And Wheel Alignment - Tightening Torques - All I3 Models
  • Rear Suspension
    • Rear Axle - Operating Fluids
    • Rear Axle - Repair - All I3 Models
    • Rear Axle - Special Tools - All I3 Models
    • Rear Axle - Technical Data - All I3 Models
    • Rear Axle - Tightening Torques - All I3 Models
  • Wheel Alignment
    • BMW Wheel Alignment Specifications - I3
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Repair - All I3 Models
    • Steering And Wheel Alignment - Special Tools - All I3 Models
    • Steering And Wheel Alignment - Technical Data - All I3 Models
    • Steering And Wheel Alignment - Tightening Torques - All I3 Models
  • Wheels & Tire System
    • Wheel And Tires - Repair - All I3 Models
    • Wheel And Tires - Tightening Torques - All I3 Models
    • Wheels And Tires - Operating Fluids
    • Wheels And Tires - Special Tools - All I3 Models
• Transmission
  • Automatic Trans
    • Automatic Transmission - Special Tools - All I3 Models
    • Automatic Transmission - Technical Data - All I3 Models
    • Checking & Adding Transmission Oil - Repair - All I3 Models
    • Engine And Gearbox Mounting - Repair - All I3 Models
    • Engine And Gearbox Mounting - Special Tools - All I3 Models
    • Gear Shift Mechanism - Operating Fluids
    • Transmission And Mounting - Tightening Torques
  • Clutch
    • Clutch - Operating Fluids
    • Pedals - Operating Fluids
    • Pedals - Repair - All I3 Models
    • Pedals - Tightening Torques - All I3 Models
  • Manual Trans
    • Gear Shift Mechanism - Operating Fluids
  • Transfer Case
    • Electric Vehicle Driveline - Repair - All I3 Models
    • Electric Vehicle Driveline - Special Tools - All I3 Models
    • Transmission And Mounting - Tightening Torques
• External Pages