BMW 3 Series F30 Fuses: Complete Box Guide 2012-2019

ByAlex Smidt

The BMW 3 Series F30 generation, produced from 2012 to 2019, features a sophisticated electrical architecture with multiple fuse boxes located throughout the vehicle. Understanding the fuse layout is essential for diagnosing electrical faults, replacing blown fuses correctly, and avoiding damage to sensitive electronics. This guide covers every fuse box location, every fuse rating, and every circuit protected in the F30 platform, including all engine variants and body styles produced during this generation.

Fuse Box Locations on the BMW F30 3 Series

The BMW F30 has three primary fuse and relay locations: the glove box fuse panel (passenger side dashboard), the engine compartment power distribution box, and the boot/trunk-mounted battery junction box. Some markets also include a supplementary relay carrier in the engine bay.

  • Glove Box Fuse Panel – Located behind the glove compartment, accessible by opening the glove box and pressing the sides inward to drop it fully open.
  • Engine Bay Power Distribution Box (PDC) – Mounted on the left side of the engine bay near the battery or the firewall, covered by a plastic lid with fuse identification labels.
  • Boot Battery Junction Box – Found in the boot on vehicles with the battery relocated to the trunk (IBS sensor equipped models), typically on the right side under the floor panel.

Glove Box Fuse Panel – Full Fuse List

  • F01 – 5A – Instrument cluster, driver information display
  • F02 – 5A – Rain/light sensor, auto-dimming mirror
  • F03 – 5A – Telephone module, Bluetooth
  • F04 – 5A – Head unit, iDrive controller
  • F05 – 10A – Navigation system, map display
  • F06 – 5A – Digital radio, DAB tuner
  • F07 – 5A – TV tuner module
  • F08 – 5A – Rear camera, parking sensors display
  • F09 – 10A – OBD diagnostic port, EOBD socket
  • F10 – 5A – Interior lighting, courtesy lamps
  • F11 – 10A – Cigarette lighter, 12V front accessory socket
  • F12 – 20A – Heated front seats (driver)
  • F13 – 20A – Heated front seats (passenger)
  • F14 – 5A – Airbag control module (SRS)
  • F15 – 5A – Steering column module, EPS control
  • F16 – 10A – Central locking, door modules
  • F17 – 5A – Footwell module (FRM), ambient lighting
  • F18 – 5A – Climate control panel, HVAC display
  • F19 – 10A – Blower motor relay, fan control
  • F20 – 20A – Heated rear window
  • F21 – 10A – Sunroof, panoramic roof motor
  • F22 – 5A – Seat memory module
  • F23 – 5A – Mirror adjustment, fold motors
  • F24 – 10A – Rear 12V socket, boot accessory outlet
  • F25 – 5A – Speed limiter, cruise control
  • F26 – 5A – Lane departure warning, surround view

Engine Bay Power Distribution Box – Full Fuse List

  • F01 – 80A – Main power supply to body electronics (fusible link)
  • F02 – 60A – Junction box power supply, terminal 30
  • F03 – 40A – Cooling fan motor, electric radiator fan
  • F04 – 30A – ABS/DSC pump motor
  • F05 – 30A – Power steering pump (electric, EPS)
  • F06 – 20A – DME/ECU control unit power supply
  • F07 – 20A – Fuel pump relay feed, EKPS module
  • F08 – 15A – Injectors power supply (petrol engines)
  • F09 – 15A – Ignition coils, ignition system
  • F10 – 10A – Lambda sensors, oxygen sensors heaters
  • F11 – 10A – VANOS solenoids, variable valve timing
  • F12 – 20A – Starter motor relay
  • F13 – 20A – Alternator excitation, charge regulation
  • F14 – 15A – Diesel glow plugs relay (diesel variants N47/B47)
  • F15 – 15A – EGR valve, diesel emissions control
  • F16 – 10A – Throttle body actuator, electronic throttle
  • F17 – 10A – Camshaft sensors, crankshaft position sensor
  • F18 – 20A – Air conditioning compressor clutch relay
  • F19 – 15A – Cooling system auxiliary pump, electric water pump
  • F20 – 10A – Horn relay
  • F21 – 15A – Windscreen washer pump, headlight washers
  • F22 – 20A – Front wiper motor
  • F23 – 15A – Rear wiper motor (Touring/Estate F31)
  • F24 – 30A – Headlight levelling, adaptive headlights (AHL)
  • F25 – 20A – Xenon/LED headlight ballast relay
  • F26 – 15A – Daytime running lights, DRL module
  • F27 – 10A – Reversing lights, reverse camera trigger
  • F28 – 10A – Number plate lights
  • F29 – 20A – Trailer socket module (if equipped)
  • F30 – 30A – Transfer box, all-wheel drive module (xDrive models)

Boot/Trunk Battery Junction Box – Full Fuse List

  • F01 – 80A – Main power feed from battery (maxi fuse)
  • F02 – 40A – Junction box supply to front fuse panel
  • F03 – 30A – Audio amplifier (HiFi/Harman Kardon)
  • F04 – 20A – Boot lighting, load area socket
  • F05 – 20A – Rear seat heating (if optioned)
  • F06 – 15A – Rear parking distance control (PDC)
  • F07 – 10A – Tail light clusters, LED rear lights
  • F08 – 15A – Trunk lid motor, soft-close or powered tailgate (F31)
  • F09 – 10A – Battery management sensor (IBS)
  • F10 – 20A – Rear 12V accessory socket (second)

Important Notes on BMW F30 Fuse Replacement

  • Always use the correct amperage – fitting a higher-rated fuse can cause wiring harness fires and is a common fault trigger on the F30 platform.
  • The F30 uses standard blade fuses (ATO/ATC), mini blade fuses, and maxi blade fuses depending on location – carry all three types.
  • Before replacing any fuse, switch off the ignition and remove the key to prevent voltage spikes to the DME or CAS modules.
  • Repeated fuse failure in the same circuit always indicates an underlying short circuit or overloaded component – never replace a blown fuse without investigating the root cause.
  • On F30 models equipped with BMW Efficient Dynamics and Start-Stop, the IBS (Intelligent Battery Sensor) located at the negative terminal of the boot battery is protected by F09 in the boot junction box – a failed IBS causes charging faults and erratic Start-Stop behaviour.
  • The footwell module (FRM) controls exterior lighting on the F30 – if multiple exterior lights fail simultaneously, check F17 in the glove box panel before condemning the FRM unit.
  • xDrive all-wheel-drive models have an additional 30A fuse (F30 in engine bay box) for the transfer case – absence of this fuse disables four-wheel drive and illuminates the DSC/4×4 warning light.

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