Repair and Diagnosis

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• Quick Lookups
  • Common Specs & Procedures - Coupe/Convertible
  • DTC Index - Diagnostics (N54)
  • Electrical Component Locations
    • Diagnostic Connector (DLC) Locations
  • Fluids
  • Technical Bulletins
    • Campaigns
    • Safety Recalls
    • Tech Tips
    • Technical Service Bulletins
  • Tire Fitment
  • Wiring Diagrams
    • Connector End Views (E93)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Accessories & Equipment
  • Accessories Control Systems
    • COMBOX - Overview
  • Anti-Theft Systems
    • Airbag, Audio, Navigation And Anti-Theft - Repair - E93
    • Airbag, Audio, Navigation And Anti-Theft - Special Tools - E93
    • Airbag, Audio, Navigation And Anti-Theft - Tightening Torques - E93
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Collision/Avoidance
    • Distance Systems, Cruise Control - Repair - E93
    • Distance Systems, Cruise Control - Special Tools - E93
  • Communication Devices
    • Communication Systems - Repair - E93
  • Cruise Control Systems
    • Distance Systems, Cruise Control - Repair - E93
    • Distance Systems, Cruise Control - Special Tools - E93
  • Drivers Assistance Systems - ADAS
    • Distance Systems, Cruise Control - Repair - E93
    • Distance Systems, Cruise Control - Special Tools - E93
  • Entertainment Systems
    • Airbag, Audio, Navigation And Anti-Theft - Repair - E93
    • Airbag, Audio, Navigation And Anti-Theft - Special Tools - E93
    • Airbag, Audio, Navigation And Anti-Theft - Tightening Torques - E93
    • COMBOX - Overview
  • Exterior Lights
    • Lights - Repair - E93
    • Lights - Special Tools - E93
    • Lights - Technical Data - E93
    • Lights - Tightening Torques - E93
  • Gauges & Instrument Panels
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
    • COMBOX - Overview
    • Engine Electrical System - Repair - E93
    • Engine Electrical System - Special Tools - E93
    • Engine Electrical System - Tightening Torques - E93
    • Instruments - Repair - E93
    • Instruments - Special Tools - E93
    • Instruments - Tightening Torques - E93
  • Headlights
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
    • Lights - Repair - E93
    • Lights - Special Tools - E93
    • Lights - Technical Data - E93
    • Lights - Tightening Torques - E93
  • Horns
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Infotainment
    • Airbag, Audio, Navigation And Anti-Theft - Repair - E93
    • Airbag, Audio, Navigation And Anti-Theft - Special Tools - E93
    • Airbag, Audio, Navigation And Anti-Theft - Tightening Torques - E93
    • COMBOX - Overview
  • Interior/Exterior Trim
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
  • Interior/Illumination Lights
    • Lights - Repair - E93
    • Lights - Special Tools - E93
    • Lights - Technical Data - E93
    • Lights - Tightening Torques - E93
  • Memory Modules
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Mirrors
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
  • Seats
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
    • Seats - Operating Fluids
    • Seats - Repair - E93
    • Seats - Special Tools - E93
    • Seats - Tightening Torques - E93
  • Steering Column Switches
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Window Motors & Regulators
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Wiper/Washer Systems
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
    • Windshield Wipers - Technical Data - E93
• Body & Frame
  • Door Locks
    • Airbag, Audio, Navigation And Anti-Theft - Repair - E93
    • Airbag, Audio, Navigation And Anti-Theft - Special Tools - E93
    • Airbag, Audio, Navigation And Anti-Theft - Tightening Torques - E93
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Exterior Body Panels
    • Body - Operating Fluids
    • Body - Special Tools - E93
    • Body - Tightening Torques - E93
    • Collision - Body Dimensions (E93)
    • Collision - Body Panel Repair (E93) Convertible
    • Paintwork - Repair - E93
    • Sealing And Corrosion Protection - BMW 2011-2016
  • Exterior/Interior Trim
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
  • Mirrors
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
  • Paint & Coatings
    • Paintwork - Repair - E93
  • Seats
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
    • Seats - Operating Fluids
    • Seats - Repair - E93
    • Seats - Special Tools - E93
    • Seats - Tightening Torques - E93
  • Sun Roof/T-Top/Convertible Top
    • Convertible Top - Repair - E93
    • Convertible Top - Special Tools - E93
    • Convertible Top - Tightening Torques - E93
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
    • Sunroof And Convertible Top - Operating Fluids
  • Towing Systems
    • Independent Heater And Towing - Tightening Torques - E93
    • Restraints And Towing - Special Tools - E93
    • Towing - Repair - E93
  • Windows
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
    • Electrical Drives - Repair - E93
    • Electrical Drives - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
• Brakes
  • Mechanical - Hydraulic
    • Brakes - Operating Fluids
    • Brakes - Repair - E93
    • Brakes - Special Tools - E93
    • Brakes - Technical Data - E93
    • Brakes - Tightening Torques - E93
    • Pedals - Operating Fluids
    • Pedals - Repair - E93
    • Pedals - Special Tools - E93
    • Pedals - Tightening Torques - E93
• Collision
  • Body Panels
    • Collision - Body Panel Repair (E93) Convertible
  • Dimensions
    • Collision - Body Dimensions (E93)
    • Collision - Body Panel Repair (E93) Convertible
  • General Collision Information
    • Collision - Body Panel Repair (E93) Convertible
  • Sealing & Corrosion Protection
    • Collision - Body Panel Repair (E93) Convertible
    • Sealing And Corrosion Protection - BMW 2011-2016
• Drivelines & Axles
  • Axle Shafts
    • Front Axle - Operating Fluids
    • Front Axle - Repair - E93
    • Front Axle - Special Tools - E93
    • Front Axle - Technical Data - E93
    • Front Axle - Tightening Torques - E93
    • Rear Axle - Operating Fluids
    • Rear Axle - Repair - E93
    • Rear Axle - Special Tools - E93
    • Rear Axle - Technical Data - E93
    • Rear Axle - Tightening Torques - E93
  • Differentials & Drive Axles
    • Front Axle - Operating Fluids
    • Rear Axle - Operating Fluids
    • Rear Axle - Repair - E93
    • Rear Axle - Special Tools - E93
    • Rear Axle - Technical Data - E93
    • Rear Axle - Tightening Torques - E93
  • Driveshaft & Universal Joints
    • Propeller Shaft - Operating Fluids
    • Propeller Shaft - Repair - E93
    • Propeller Shaft - Special Tools - E93
    • Propeller Shaft - Tightening Torques - E93
• Electrical
  • Body Electrical
    • Connector End Views (E93)
    • Electrical System - Operating Fluids
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Charging Systems
    • Engine Electrical System - Repair - E93
    • Engine Electrical System - Special Tools - E93
    • Engine Electrical System - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Component Locations
    • Diagnostic Connector (DLC) Locations
  • Fuses & Circuit Breakers
    • Fuse Assignment Symbol Definitions
    • Fuses & Circuit Breakers - E90/E91/E92/E93
  • Gauges
    • Body Equipment - Operating Fluids
    • Body Equipment - Repair - E93
    • Body Equipment - Special Tools - E93
    • Body Equipment - Tightening Torques - E93
    • COMBOX - Overview
    • Engine Electrical System - Repair - E93
    • Engine Electrical System - Special Tools - E93
    • Engine Electrical System - Tightening Torques - E93
    • Instruments - Repair - E93
    • Instruments - Special Tools - E93
    • Instruments - Tightening Torques - E93
  • Horns
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Motors, Switches, Relays
    • Connector End Views (E93)
    • Electrical System - Operating Fluids
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
  • Starter
    • Engine Electrical System - Repair - E93
    • Engine Electrical System - Special Tools - E93
    • Engine Electrical System - Tightening Torques - E93
  • Wiring Diagrams
    • Connector End Views (E93)
    • System Wiring Diagrams
    • Using lemon2025'S System Wiring Diagrams
• Engine Mechanical
  • Cooling System (Mechanical)
    • Cooling System - Repair - E93
    • Cooling System - Special Tools - E93
    • Cooling System - Technical Data - E93
    • Cooling System - Tightening Torques - E93
    • Engine - Operating Fluids
    • Engine - Repair - E93
    • Radiator - Operating Fluids
  • Exhaust
    • Exhaust System - Operating Fluids
    • Exhaust System - Repair - E93
    • Exhaust System - Special Tools - E93
    • Exhaust System - Tightening Torques - E93
  • Fuel System
    • Fuel Supply System - Operating Fluids
    • Fuel Supply System - Repair - E93
    • Fuel Supply System - Special Tools - E93
    • Fuel Supply System - Technical Data - E93
    • Fuel Supply System - Tightening Torques - E93
    • Fuel System - Operating Fluids
    • Fuel System - Repair - E93
    • Fuel System - Special Tools - E93
    • Fuel System - Technical Data - E93
    • Fuel System - Tightening Torques - E93
  • Mechanical
    • Engine - Operating Fluids
    • Engine - Repair - E93
    • Engine - Special Tools - E93
    • Engine - Technical Data - E93
    • Engine - Tightening Torques - E93
    • Engine And Transmission Mounting - Repair - E93
    • Engine And Transmission Mounting - Special Tools - E93
    • Engine And Transmission Mounting - Tightening Torques - E93
    • Maintenance And General Information - Tightening Torques - E93
  • Starter
    • Engine Electrical System - Repair - E93
    • Engine Electrical System - Special Tools - E93
    • Engine Electrical System - Tightening Torques - E93
• Engine Performance
  • Emissions
    • Emission Applications
    • Emission Control Abbreviations
    • State Emission Standards - Diesel
    • State Emission Standards - Gas
  • Engine Control Systems
    • Engine - Operating Fluids
    • Engine - Repair - E93
  • Fuel Delivery
    • Fuel Supply System - Operating Fluids
    • Fuel Supply System - Repair - E93
    • Fuel Supply System - Special Tools - E93
    • Fuel Supply System - Technical Data - E93
    • Fuel Supply System - Tightening Torques - E93
    • Fuel System - Operating Fluids
    • Fuel System - Repair - E93
    • Fuel System - Special Tools - E93
    • Fuel System - Technical Data - E93
    • Fuel System - Tightening Torques - E93
  • Ignition System
    • Engine Electrical System - Repair - E93
    • Engine Electrical System - Special Tools - E93
    • Engine Electrical System - Tightening Torques - E93
  • Remove, Overhaul & Install
    • Engine Electrical System - Repair - E93
    • Engine Electrical System - Special Tools - E93
    • Engine Electrical System - Tightening Torques - E93
  • Specifications
    • Firing Order & Cylinder Identification
  • System
    • Self Diagnosis - Diagnostic Trouble Codes (N54)
    • Self Diagnosis - Theory & Operation (N54)
  • Testing & Diagnosis
    • Self Diagnosis - Diagnostic Trouble Codes (N54)
    • Self Diagnosis - Theory & Operation (N54)
  • Theory and Operation
    • Self Diagnosis - Theory & Operation (N54)
  • Tune-Up
    • Engine Electrical System - Repair - E93
    • Engine Electrical System - Special Tools - E93
    • Engine Electrical System - Tightening Torques - E93
• 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
  • DTC Index - Diagnostics (N54)
  • 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
    • BMW Model & Engine 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 - E93 - Charging, Anti-Theft, Body Electrical And HVAC Systems
    • Functional Description - E93 - Cooling Systems And Engine Performance
    • Functional Description - E93 - Information & Entertainment Systems
    • Functional Description - E93 - Steering, Restraints, Stability Control, Tire & Wheel And Lubrication Systems
    • Functional Description - E93 - Transmission & Driveline, Exterior Lighting, Towing And Cruise Control Systems
    • Introduction - E8X And E9X Model Year Updates
    • Maintenance And General Information - Operating Fluids
    • Maintenance And General Information - Repair - E92
    • Maintenance And General Information - Repair - E93
    • Maintenance And General Information - Special Tools - E92
    • Maintenance And General Information - Special Tools - E93
    • Maintenance And General Information - Tightening Torques - E93
    • Mobile Service - E93
  • Reset Procedures
    • ATEQ TPMS Reset Procedure
    • BARTEC TPMS Reset Procedure
    • Maintenance Reminder Light (Reset Procedures)
    • Tire Pressure Monitor Systems - E90/E91/E92/E93
  • Specifications Index
    • Common Specs & Procedures - Coupe/Convertible
  • 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 - Operating Fluids
    • Heating And Air Conditioning - Repair - E93
    • Heating And Air Conditioning - Special Tools - E93
    • Heating And Air Conditioning - Technical Data - E93
    • Heating And Air Conditioning - Tightening Torques - E93
    • Independent Heater And Towing - Tightening Torques - E93
• Maintenance
  • Maintenance Reminder Light (Reset Procedures)
• Restraints
  • Air Bag, SRS
    • Airbag, Audio, Navigation And Anti-Theft - Repair - E93
    • Airbag, Audio, Navigation And Anti-Theft - Special Tools - E93
    • Airbag, Audio, Navigation And Anti-Theft - Tightening Torques - E93
    • General Electrical System - Repair - E93
    • General Electrical System - Special Tools - E93
    • General Electrical System - Tightening Torques - E93
    • Restraints - Repair - E93
    • Restraints - Tightening Torques - E93
    • Restraints And Towing - Special Tools - E93
  • Restraints Control Systems
    • Restraints - Repair - E93
    • Restraints - Tightening Torques - E93
    • Restraints And Towing - Special Tools - E93
  • Seat Belts
    • Restraints - Repair - E93
    • Restraints - Tightening Torques - E93
    • Restraints And Towing - Special Tools - E93
• Steering
  • Manual Steering
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Repair - E93
    • Steering And Wheel Alignment - Special Tools - E93
    • Steering And Wheel Alignment - Technical Data - E93
    • Steering And Wheel Alignment - Tightening Torque - E93
  • Power Steering
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Repair - E93
    • Steering And Wheel Alignment - Special Tools - E93
    • Steering And Wheel Alignment - Technical Data - E93
    • Steering And Wheel Alignment - Tightening Torque - E93
• Suspension
  • Electronic Suspension
    • Integrated Suspension Systems - Operating Fluids
    • Integrated Suspension Systems - Repair - E93
    • Integrated Suspension Systems - Special Tools - E93
    • Integrated Suspension Systems - Tightening Torques - E93
  • Front Suspension
    • Front Axle - Operating Fluids
    • Front Axle - Repair - E93
    • Front Axle - Special Tools - E93
    • Front Axle - Technical Data - E93
    • Front Axle - Tightening Torques - E93
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Repair - E93
    • Steering And Wheel Alignment - Special Tools - E93
    • Steering And Wheel Alignment - Technical Data - E93
    • Steering And Wheel Alignment - Tightening Torque - E93
  • Rear Suspension
    • Rear Axle - Operating Fluids
    • Rear Axle - Repair - E93
    • Rear Axle - Special Tools - E93
    • Rear Axle - Technical Data - E93
    • Rear Axle - Tightening Torques - E93
  • Wheel Alignment
    • Steering - Operating Fluids
    • Steering And Wheel Alignment - Repair - E93
    • Steering And Wheel Alignment - Special Tools - E93
    • Steering And Wheel Alignment - Technical Data - E93
    • Steering And Wheel Alignment - Tightening Torque - E93
  • Wheels & Tire System
    • Wheel And Tires - Repair - E93
    • Wheel And Tires - Special Tools - E93
    • Wheel And Tires - Technical Data - E93
    • Wheel And Tires - Tightening Torques - E93
    • Wheels And Tires - Operating Fluids
• Transmission
  • Automatic Trans
    • Automatic Transmission - Repair - E93
    • Automatic Transmission - Special Tools - E93
    • Automatic Transmission - Technical Data - E93
    • Automatic Transmission - Tightening Torques - E93
    • Double Clutch Gearbox - Repair - E93
    • Dual-Clutch Transmission -- Operating Fluids
    • Engine And Transmission Mounting - Repair - E93
    • Engine And Transmission Mounting - Special Tools - E93
    • Engine And Transmission Mounting - Tightening Torques - E93
    • Gear Shift Mechanism - Operating Fluids
    • Gear Shift Mechanism - Repair - E93
    • Gear Shift Mechanism - Special Tools - E92
    • Gear Shift Mechanism - Special Tools - E93
    • Gear Shift Mechanism - Tightening Torques - E93
  • Clutch
    • Clutch - Repair - E93
    • Clutch - Special Tools - E93
    • Clutch - Tightening Torques - E93
    • Pedals - Operating Fluids
    • Pedals - Repair - E93
    • Pedals - Special Tools - E93
    • Pedals - Tightening Torques - E93
  • Manual Trans
    • Engine And Transmission Mounting - Repair - E93
    • Engine And Transmission Mounting - Special Tools - E93
    • Engine And Transmission Mounting - Tightening Torques - E93
    • Gear Shift Mechanism - Operating Fluids
    • Gear Shift Mechanism - Repair - E93
    • Gear Shift Mechanism - Special Tools - E92
    • Gear Shift Mechanism - Special Tools - E93
    • Gear Shift Mechanism - Tightening Torques - E93
    • Manual Transmission - Operating Fluids
    • Manual Transmission - Repair - E93
    • Manual Transmission - Special Tools - E93
    • Manual Transmission - Technical Data - E93
    • Manual Transmission - Tightening Torques - E93
  • Transfer Case
    • Transfer Case - Operating Fluids
    • Transfer Case - Tightening Torques - E92
• External Pages