Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures (F31 & F34)
  • Fluids
  • Technical Bulletins
    • Campaigns
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • Connector End Views (F34)
    • Fuse And Relay Location -- (3' Series And 4' Series: F30, F30H, F31, F32, F33, F34, F36, F80; F82, F83)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Anti-Theft Systems
    • Audio, Navigation, Anti-Theft, Airbag Control - Repair (F31 & F34)
    • Audio, Navigation, Anti-Theft, Airbag Control - Tightening Torques (F31 & F34)
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
  • Collision/Avoidance
    • Distance Systems, Cruise Control - Repair (F31 & F34)
  • Communication Devices
    • Communication Systems - Repair (F31 & F34)
    • Communication Systems - Tightening Torques (F31 & F34)
  • Cruise Control Systems
    • Distance Systems, Cruise Control - Repair (F31 & F34)
  • Drivers Assistance Systems - ADAS
    • Distance Systems, Cruise Control - Repair (F31 & F34)
  • Entertainment Systems
    • Audio, Navigation, Anti-Theft, Airbag Control - Repair (F31 & F34)
    • Audio, Navigation, Anti-Theft, Airbag Control - Tightening Torques (F31 & F34)
  • Exterior Lights
    • Lights - Repair (F31 & F34)
    • Lights - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Gauges & Instrument Panels
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
    • Engine Electrical System - Repair (F31 & F34)
    • Engine Electrical System - Tightening Torques (F31 & F34)
    • Instruments - Repair (F31 & F34)
    • Instruments - Tightening Torques (F31 & F34)
  • Headlights
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
    • Lights - Repair (F31 & F34)
    • Lights - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Horns
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
  • Infotainment
    • Audio, Navigation, Anti-Theft, Airbag Control - Repair (F31 & F34)
    • Audio, Navigation, Anti-Theft, Airbag Control - Tightening Torques (F31 & F34)
  • Interior/Exterior Trim
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
  • Interior/Illumination Lights
    • Lights - Repair (F31 & F34)
    • Lights - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Memory Modules
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
  • Mirrors
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
  • Seats
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
    • Seats - Operating Fluids
    • Seats - Repair (F31 & F34)
    • Seats - Tightening Torques (F31 & F34)
  • Steering Column Switches
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
  • Window Motors & Regulators
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Wiper/Washer Systems
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
• Body & Frame
  • Door Locks
    • Audio, Navigation, Anti-Theft, Airbag Control - Repair (F31 & F34)
    • Audio, Navigation, Anti-Theft, Airbag Control - Tightening Torques (F31 & F34)
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
  • Exterior Body Panels
    • Body - Operating Fluids
    • Collision - Body Dimensions (F31 & F34)
    • Collision - Body Panel Repair (F31 & F34)
    • Collision - Paint Information (F31 & F34)
    • Steering Gear Collision Warning
  • Exterior/Interior Trim
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
  • Frames, Subframes & Crossmembers
    • Steering Gear Collision Warning
  • Mirrors
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
  • Seats
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
    • Seats - Operating Fluids
    • Seats - Repair (F31 & F34)
    • Seats - Tightening Torques (F31 & F34)
  • Sun Roof/T-Top/Convertible Top
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
    • Sunroof - Repair (F31 & F34)
    • Sunroof - Tightening Torques (F31 & F34)
    • Sunroof And Convertible Top - Operating Fluids
  • Towing Systems
    • Trailer Tow Hitch - Repair (F31 & F34)
  • Windows
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
    • Electrical Drives - Repair (F31 & F34)
    • Electrical Drives - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
• Brakes
  • Mechanical - Hydraulic
    • Brakes - Repair (F31 & F34)
    • Brakes - Tightening Torques (F31 & F34)
    • Pedals - Operating Fluids
    • Pedals - Repair (F31 & F34)
    • Pedals - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
• Collision
  • Body Panels
    • Collision - Body Panel Repair (F31 & F34)
  • Collision - Body Dimensions (F31 & F34)
  • General Collision Information
    • Collision - Body Panel Repair (F31 & F34)
  • Paint & Coatings
    • Collision - Paint Information (F31 & F34)
  • Plastic Parts
    • Collision - Body Panel Repair (F31 & F34)
  • Sealing & Corrosion Protection
    • Collision - Body Panel Repair (F31 & F34)
• Drivelines & Axles
  • Axle Shafts
    • Front Axle - Repair (F31 & F34)
    • Front Axle - Tightening Torques (F31 & F34)
    • Rear Axle - Operating Fluids
    • Rear Axle - Repair (F31 & F34)
    • Rear Axle - Tightening Torques (F31 & F34)
  • Differentials & Drive Axles
    • Rear Axle - Operating Fluids
    • Rear Axle - Repair (F31 & F34)
    • Rear Axle - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Driveshaft & Universal Joints
    • Propeller Shaft - Operating Fluids
    • Propeller Shaft - Repair (F31 & F34)
    • Propeller Shaft - Tightening Torques (F31 & F34)
• Electrical
  • Body Electrical
    • Connector End Views (F34)
    • Electrical System - Operating Fluids
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
  • Charging Systems
    • Engine Electrical System - Repair (F31 & F34)
    • Engine Electrical System - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
  • Gauges
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair (1 Of 2) (F31 & F34)
    • Body Equipment - Repair (2 Of 2) (F31 & F34)
    • Body Equipment - Tightening Torques (F31 & F34)
    • Engine Electrical System - Repair (F31 & F34)
    • Engine Electrical System - Tightening Torques (F31 & F34)
    • Instruments - Repair (F31 & F34)
    • Instruments - Tightening Torques (F31 & F34)
  • Horns
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
  • Motors, Switches, Relays
    • Connector End Views (F34)
    • Electrical System - Operating Fluids
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
  • Starter
    • Engine Electrical System - Repair (F31 & F34)
    • Engine Electrical System - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Wiring Diagrams
    • Connector End Views (F34)
    • Fuse And Relay Location -- (3' Series And 4' Series: F30, F30H, F31, F32, F33, F34, F36, F80; F82, F83)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Accessory Drive Belts
    • Engine - Repair (F31 & F34) (1 Of 5)
    • Engine - Repair (F31 & F34) (2 Of 5)
    • Engine - Repair (F31 & F34) (3 Of 5)
    • Engine - Repair (F31 & F34) (4 Of 5)
    • Engine - Repair (F31 & F34) (5 Of 5)
    • Engine - Tightening Torques (F31 & F34)
  • Blowers, Superchargers & Turbochargers
    • Engine - Repair (F31 & F34) (1 Of 5)
    • Engine - Repair (F31 & F34) (2 Of 5)
    • Engine - Repair (F31 & F34) (3 Of 5)
    • Engine - Repair (F31 & F34) (4 Of 5)
    • Engine - Repair (F31 & F34) (5 Of 5)
    • Engine - Tightening Torques (F31 & F34)
  • Cooling System (Mechanical)
    • Cooling System - Repair (F31 & F34)
    • Cooling System - Tightening Torques (F31 & F34)
    • Engine - Repair (F31 & F34) (1 Of 5)
    • Engine - Repair (F31 & F34) (2 Of 5)
    • Engine - Repair (F31 & F34) (3 Of 5)
    • Engine - Repair (F31 & F34) (4 Of 5)
    • Engine - Repair (F31 & F34) (5 Of 5)
    • Engine - Tightening Torques (F31 & F34)
    • Radiator - Operating Fluids
    • Technical Data (F31 & F34)
  • Exhaust
    • Exhaust System - Operating Fluids
    • Exhaust System - Repair (F31 & F34)
    • Exhaust System - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Fuel System
    • Fuel Supply System - Operating Fluids
    • Fuel Supply System - Repair (F31 & F34)
    • Fuel Supply System - Tightening Torques (F31 & F34)
    • Fuel System - Operating Fluids
    • Fuel System - Repair (F31 & F34)
    • Fuel System - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Lubrication System
    • Technical Data (F31 & F34)
  • Mechanical
    • Engine - Repair (F31 & F34) (1 Of 5)
    • Engine - Repair (F31 & F34) (2 Of 5)
    • Engine - Repair (F31 & F34) (3 Of 5)
    • Engine - Repair (F31 & F34) (4 Of 5)
    • Engine - Repair (F31 & F34) (5 Of 5)
    • Engine - Tightening Torques (F31 & F34)
    • Engine And Transmission Mounting - Repair (F31 & F34)
    • Engine And Transmission Mounting - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Starter
    • Engine Electrical System - Repair (F31 & F34)
    • Engine Electrical System - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Engine - Repair (F31 & F34) (1 Of 5)
    • Engine - Repair (F31 & F34) (2 Of 5)
    • Engine - Repair (F31 & F34) (3 Of 5)
    • Engine - Repair (F31 & F34) (4 Of 5)
    • Engine - Repair (F31 & F34) (5 Of 5)
    • Engine - Tightening Torques (F31 & F34)
  • Fuel Delivery
    • Fuel Supply System - Operating Fluids
    • Fuel Supply System - Repair (F31 & F34)
    • Fuel Supply System - Tightening Torques (F31 & F34)
    • Fuel System - Operating Fluids
    • Fuel System - Repair (F31 & F34)
    • Fuel System - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Ignition System
    • Engine Electrical System - Repair (F31 & F34)
    • Engine Electrical System - Tightening Torques (F31 & F34)
  • Remove, Overhaul & Install
    • Engine Electrical System - Repair (F31 & F34)
    • Engine Electrical System - Tightening Torques (F31 & F34)
  • Specifications
    • Firing Order & Cylinder Identification
  • Tune-Up
    • Engine Electrical System - Repair (F31 & F34)
    • Engine Electrical System - Tightening Torques (F31 & F34)
• 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
    • Body, Accessories & Equipment Special Tools (F31 & F34)
    • General Orphan Data
    • Maintenance And General Information - Repair (F31 & F34)
    • Maintenance And General Information - Tightening Torques (F31 & F34)
    • Mechanical Special Tools (F31 & F34)
  • Reset Procedures
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems - F30/ F31/ F34
  • Specifications Index
    • Common Specs & Procedures (F31 & F34)
  • Steering
    • Map - Steering, Suspension, Wheel Alignment, Wheels & Tires
    • Wheel Alignment Theory & Operation - General Information
  • Traction Control Disable Procedures
  • Trouble Shooting - Manual Transmission - General Information
• Heating, Ventilation & A/C (HVAC)
  • HVAC Control Systems
    • Heating And Air Conditioning - Repair (F31 & F34)
    • Heating And Air Conditioning - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
• Maintenance
  • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • Audio, Navigation, Anti-Theft, Airbag Control - Repair (F31 & F34)
    • Audio, Navigation, Anti-Theft, Airbag Control - Tightening Torques (F31 & F34)
    • General Electrical System - Repair (F31 & F34)
    • General Electrical System - Tightening Torques (F31 & F34)
    • Restraints - Repair (F31 & F34)
    • Restraints - Tightening Torques (F31 & F34)
  • Restraints Control Systems
    • Restraints - Repair (F31 & F34)
    • Restraints - Tightening Torques (F31 & F34)
  • Seat Belts
    • Restraints - Repair (F31 & F34)
    • Restraints - Tightening Torques (F31 & F34)
• Steering
  • Electronic Steering
    • Steering Gear Collision Warning
  • Manual Steering
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Repair (F31 & F34)
    • Steering And Wheel Alignment - Tightening Torques (F31 & F34)
    • Steering Gear Collision Warning
  • Power Steering
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Repair (F31 & F34)
    • Steering And Wheel Alignment - Tightening Torques (F31 & F34)
    • Steering Gear Collision Warning
  • Steering Column
    • Steering Gear Collision Warning
    • Technical Data (F31 & F34)
  • Steering Control Systems
    • Steering Gear Collision Warning
  • Steering Gear Collision Warning
  • Steering Linkage
    • Steering Gear Collision Warning
• Suspension
  • Electronic Suspension
    • Integrated Suspension Systems - Operating Fluids
    • Integrated Suspension Systems - Repair (F31 & F34)
    • Integrated Suspension Systems - Tightening Torques (F31 & F34)
  • Front Suspension
    • Front Axle - Repair (F31 & F34)
    • Front Axle - Tightening Torques (F31 & F34)
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Repair (F31 & F34)
    • Steering And Wheel Alignment - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Rear Suspension
    • Rear Axle - Operating Fluids
    • Rear Axle - Repair (F31 & F34)
    • Rear Axle - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Wheel Alignment
    • BMW Wheel Alignment Specifications - 3 Series
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Repair (F31 & F34)
    • Steering And Wheel Alignment - Tightening Torques (F31 & F34)
    • Technical Data (F31 & F34)
  • Wheels & Tire System
    • Technical Data (F31 & F34)
    • Wheel And Tires - Tightening Torques (F31 & F34)
    • Wheels And Tires - Operating Fluids
    • Wheels And Tires - Repair (F31 & F34)
• Transmission
  • Automatic Trans
    • Automatic Transmission - Repair (F31 & F34)
    • Automatic Transmission - Tightening Torques (F31 & F34)
    • Engine And Transmission Mounting - Repair (F31 & F34)
    • Engine And Transmission Mounting - Tightening Torques (F31 & F34)
    • Gear Shift Mechanism - Operating Fluids
    • Technical Data (F31 & F34)
  • Clutch
    • Clutch - Operating Fluids
    • Pedals - Operating Fluids
  • Manual Trans
    • Gear Shift Mechanism - Operating Fluids
  • Transfer Case
    • Transfer Case - Repair (F31 & F34)
    • Transfer Case - Tightening Torques (F31 & F34)
• External Pages