BMW X3 F25 (2011-2017) – Fuse Box Diagrams and Fuse Ratings

BMW X3 F25 (2011-2017) is the second-generation X3. Its standard passenger-accessible fuse boxes are behind the glovebox and behind the right luggage-compartment side trim. Additional high-current power distribution is installed near the engine bay and battery. Fuse position, amperage and equipment allocation depend on the production date, powertrain and optional equipment.

BMW issued two different original fuse assignment cards for this model. 71 23 9 192 480 (9192480) applies to the earlier configuration, and 71 23 9 315 152 (9315152) to the version introduced around April 2014. Compare the card supplied with the car itself to the diagrams below, especially for vehicles built close to this changeover.

Where are the BMW X3 F25 fuse boxes?

Glovebox: switch off the ignition, open the front passenger glove compartment and release its fuse access cover. The interior panel carries positions in the 1-67 range; some numbers, including 6, 30 and 49, are absent from BMW’s card numbering and must not be invented or added as missing fuses.

Luggage compartment: open the tailgate, release the right-hand trim access flap and move the sound-insulating liner aside. A factory fuse assignment card is stored near this box on many cars. The main rear fuse carrier uses the approximately 100-204 position range, with further power-distribution connections close to the battery.

Engine compartment: additional high-current distribution assemblies protect consumers such as the electric fan, DSC braking electronics and electric power steering. They are separate from the standard glovebox and luggage-compartment fuse carriers.

Glovebox fuse box before April 2014 – BMW card 9192480

This is the complete amp-rating list shown by the original early card. Each fuse number has its own row, rather than combining two positions in a single table cell. The card identifies most protected equipment through pictograms, so positions without a verified individual assignment are labelled accordingly, not given guessed functions.

Glovebox fuse box from April 2014 – BMW card 9315152

The revised card changes the occupancy and ratings of several positions, including 1, 4, 20-22, 42, 46, 50, 57, 62 and 65. For example, fuse 62 is 10 A on the early card and 15 A on the later one. These two values are not interchangeable.

Luggage compartment fuse box before April 2014

The earlier card 9192480 includes separate ratings for the numbered rear distribution positions. A dash denotes a socket shown as unoccupied on this card, not a reason to fit a fuse.

Luggage compartment fuse box from April 2014

On card 9315152, some earlier fuse slots are unused, while others gain a new rating. The changed positions include 103, 105, 107, 108, 111, 131, 132, 137, 140, 144, 146, 173, 191 and 192. The following full listing preserves every numbered position shown by the original card.

BMW X3 F25 fuse functions and factory pictogram keys

BMW uses pictograms to associate equipment with one or several fuse numbers. The source cards provide an amperage chart and a separate functional key. That is why the longer tables above do not invent a universal circuit description for every physical socket; the installed vehicle’s own card is the authoritative assignment.

Original fuse symbol card before April 2014

Original fuse symbol card from April 2014

On both documented cards the OBD diagnostic connector is associated with fuse 3, the fuel pump control with 139 and 184, the rear wiper with 8, 51 and 55, and the heated rear window with 203. Outlet assignments change more noticeably: earlier cards include 1; the later card includes 107 and 111. A single device may have more than one feed.

Additional high-current protection: Z4, Z8 and F502

The separate under-bonnet Z4 distribution block supplies high-current circuits including the cooling fan, DSC pump and electric steering / auxiliary heater where fitted. Z8 is a battery-connected high-current distribution block that BMW does not generally treat as a set of individually replaceable standard blade fuses.

F502 (100 A): the original Polish article identifies a BMW technical bulletin concerning early X3 F25 vehicles built between 31 October 2010 and 30 January 2012, where a fault in the battery-connected rear distributor Z3 can affect several electrical functions or, in certain cases, starting. This is not a consumer fuse to bypass; the specified distributor and the underlying fault must be assessed by a qualified technician.

Fault checks and production-year differences

Dead cigarette lighter or 12 V outlet: inspect the outlet itself, then refer to the equipment pictogram key on the correct card. For the early arrangement 1, 54, 65, 143, 144, 171 and 176 are listed among power outlet circuits; the later card uses 54, 65, 107, 111, 143, 144, 171 and 176.

Fuel pump does not operate: review the rear card references 139 and 184 and verify the actual voltage and controller operation before replacing parts. Horn failure: the card links the horn to fuses 8 and 62; their ratings differ between card revisions.

Several unrelated systems fail at once: investigate the battery distribution and main supply rather than repeatedly replacing small fuses. Never install higher-rated fuses to overcome a fault, and do not dismantle Z4/Z8 or battery main distribution without the correct service procedure.

See the related BMW 5 Series F10/F11 fuse diagrams and BMW 1 Series F20/F21 diagrams. Their electrical systems are related, but the fuse assignments are not interchangeable. The X3 E83 and the newer G01 must not be assumed to share the F25 fuse assignments.