BMW 440i / 440i xDrive Wiring Diagram Manual 2018–2020 – F32 / F33 / F36 Electrical System, PT-CAN, DME, DSC, xDrive & Full OEM Circuit Schematics

This wiring diagram manual package covers the BMW 440i for the 2018, 2019, and 2020 model years. Each uploaded manual is internally identified as a BMW 440i Base with the 3.0L engine:

• 2018 BMW 440i Base – 3.0L Eng
• 2019 BMW 440i Base – 3.0L Eng
• 2020 BMW 440i Base – 3.0L Eng

The files contain 155 pages for 2018, 155 pages for 2019, and 158 pages for 2020, giving the complete package 468 pages of electrical circuit schematics.

The manuals provide system-organized wiring diagrams for electrical diagnostics, signal tracing, connector inspection, module communication testing, fuse and relay checks, power and ground verification, body electronics, drivetrain wiring, comfort systems, infotainment, lighting, safety systems, and xDrive-related circuits where applicable.

Vehicle Coverage

• Make: BMW
• Models:
  • 440i
  • 440i xDrive where applicable
• Chassis / Platform:
  • F32 Coupe
  • F33 Convertible
  • F36 Gran Coupe
• Model Years:
  • 2018
  • 2019
  • 2020
• Engine: 3.0L Turbo
• Trim References:
  • 2018 BMW 440i Base
  • 2019 BMW 440i Base
  • 2020 BMW 440i Base
• Drive Coverage: RWD / xDrive where applicable
• Body Coverage: Coupe / Convertible / Gran Coupe-related circuits
• Transmission Coverage: Automatic and manual-related circuits where applicable
• Document Type: Wiring Diagram Manual
• Format: PDF
• Pages:
  • 2018 manual: 155 pages
  • 2019 manual: 155 pages
  • 2020 manual: 158 pages
• Total Package Pages: 468
• Language: English
• Content Type: OEM-style electrical circuit schematics

Technical Highlights

• Complete wiring diagrams for BMW 440i and applicable 440i xDrive systems
• 3.0L turbo DME / Digital Motor Electronics schematics
• Turbocharger and low-temperature coolant-pump wiring
• Heat-management module and engine-cooling circuits
• DSC / anti-lock brake system diagrams
• PT-CAN, K-CAN, LIN, FlexRay, MOST, and diagnostic communication networks
• Front Electronic Module and Rear Electronic Module wiring
• Power distribution, fuse, relay, splice, and ground circuits
• Automatic air-conditioning and HVAC system diagrams
• Access/start, anti-theft, comfort access, and central locking wiring
• Exterior lamps, LED headlights, interior lighting, horn, and warning systems
• Navigation, radio, HiFi, MOST bus, cameras, and parking-assistance wiring
• Power seats, memory functions, mirrors, windows, sunroof, convertible top, and neck-warmer circuits
• Supplemental restraints, passive restraints, transmission, rear axle, trunk, tailgate, and fuel-door wiring

Table of Content

• Active Bodyworks
  • Active Bodyworks Circuit
• Air Conditioning
  • Automatic A/C Circuit
    • 4-part circuit
• Anti-Lock Brakes
  • Anti-lock Brakes Circuit
• Anti-Theft
  • Access/Start Circuit
    • 2-part circuit
  • Anti-theft & Central Locking Circuit
    • Multi-part circuit
• Body Control Modules
  • Front Electronic Control Module Circuit
    • 3-part circuit
  • Rear Electronic Control Module Circuit
• Computer Data Lines
  • Computer Data Lines Circuit
    • Multi-part circuit
• Cooling Fan
  • Cooling Fan Circuit
• Cruise Control
  • Cruise Control Circuit
• Defoggers
  • Heated Mirrors Circuit, W/ LIN Bus Function
  • Heated Mirrors Circuit, W/O LIN Bus Function
  • Rear Defogger Circuit
• Electronic Power Steering
  • Electronic Power Steering Circuit
• Electronic Suspension
  • Air Suspension Circuit
  • Dynamic Drive Suspension Circuit
  • Electronic Damper Control Circuit
• Engine Performance
  • 3.0L Turbo, Engine Performance Circuit
    • Multi-part circuit
  • Heat Management Module Circuit
  • Turbocharger Coolant Pump Circuit
  • Low-Temperature Coolant Circuit
• Exterior Lights
  • Backup Lamps Circuit
  • Exterior Lamps Circuit
    • Multi-part circuit
  • Exterior Lamps Circuit, W/ LED Headlamps
    • Multi-part circuit
  • Exterior Lamps Circuit, W/O LED Headlamps
    • Multi-part circuit
  • Trailer Tow Circuit
• Ground Distribution
  • Ground Distribution Circuit
    • 4-part circuit for 2018 coverage
    • Expanded multi-part coverage for 2019 / 2020
• Headlights
  • Headlights Circuit, W/ LED Headlamps
    • 2-part circuit
  • Headlights Circuit, W/O LED Headlamps
    • 2-part circuit
• Horn
  • Horn Circuit
• Instrument Cluster
  • Instrument Cluster Circuit
• Interior Lights
  • Courtesy Lamps Circuit
    • Multi-part circuit
  • Instrument Illumination Circuit
    • Multi-part circuit
• Memory Systems
  • Driver’s Memory Seat Circuit, Convertible
  • Driver’s Memory Seat Circuit, Coupe
  • Passenger’s Memory Seat Circuit, Convertible
  • Passenger’s Memory Seat Circuit, Coupe
  • Memory Mirrors Circuit, W/ LIN Bus Function
  • Memory Mirrors Circuit, W/O LIN Bus Function
• Navigation and Driver Assistance
  • All Around Vision Camera Circuit
  • Lane Departure Warning Circuit, W/ Camera
  • Lane Departure Warning Circuit, W/O Camera
  • Navigation Circuit, W/ HiFi Radio & Active Sound Design
    • Multi-part circuit
  • Navigation Circuit, W/ HiFi Radio W/O Active Sound Design
    • Multi-part circuit
  • Navigation Circuit, W/O HiFi Radio & Active Sound Design
    • Multi-part circuit
  • Navigation Circuit, W/O HiFi Radio W/ Active Sound Design
    • Multi-part circuit
  • Parking Assistant Circuit, W/ Parking Maneuvering Assistant
  • Parking Assistant Circuit, W/O Parking Maneuvering Assistant
  • Rear Camera Circuit
• Passive Restraints
  • Reversible Electrically Motorized Reel Circuit, Convertible
  • Reversible Electrically Motorized Reel Circuit, Coupe
• Power Distribution
  • Power Distribution Circuit
    • 5-part circuit
• Power Door Locks
  • Power Door Locks Circuit
    • Multi-part circuit
• Power Mirrors
  • Power Mirrors Circuit
• Power Seats
  • Front Heated Seats Circuit, W/ Memory
  • Front Heated Seats Circuit, W/O Memory
  • Heated Steering Wheel Circuit
  • Lumbar Circuit, Convertible
  • Lumbar Circuit, Coupe
  • Neck Warmer Circuit
  • Rear Heated Seats Circuit
  • Sport Seats Circuit
• Power Top / Sunroof
  • Convertible Top Circuit
    • Multi-part circuit
  • Sunroof Circuit
• Power Windows
  • Power Windows Circuit
  • Rear Window Sun Shade Circuit
• Radio and Infotainment
  • Base Radio Circuit, W/ Active Sound Design
    • Multi-part circuit
  • Base Radio Circuit, W/O Active Sound Design
    • Multi-part circuit
  • HiFi Radio Circuit, W/ Active Sound Design
    • Multi-part circuit
  • HiFi Radio Circuit, W/O Active Sound Design
    • Multi-part circuit
  • MOST Data Bus Circuit
  • Top HiFi Radio Circuit, W/ Active Sound Design
  • Top HiFi Radio Circuit, W/O Active Sound Design
• Starting / Charging
  • Charging Circuit
  • Starting Circuit
  • Automatic Engine Start/Stop Circuit
• Supplemental Restraints
  • Supplemental Restraints Circuit
    • Convertible configuration
    • Coupe / Gran Coupe configuration
• Transmission
  • A/T Circuit
  • Manual Transmission Gear Sensor Circuit where applicable
  • Shift Interlock Circuit
• Rear Axle
  • Rear Axle Circuit
  • Electronically Regulated Rear Axle Differential Lock Circuit where equipped
• Trunk, Tailgate, Fuel Door
  • Contact-Free Tailgate Opening Circuit
  • Trunk & Fuel Door Release Circuit, Convertible
  • Trunk & Fuel Door Release Circuit, Coupe / Gran Coupe
• Warning Systems
  • Warning Systems Circuit
• Wiper / Washer
  • Wiper/Washer Circuit