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2003 BMW 3 Series E46 Fuse Box Diagram

The 2003 BMW 3 Series (E46) has 2 fuse boxes. Choose the one you’re looking at.

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Glove compartment fuse box, left half (fuses 1-15 and 35-52)

A 2003 model-year E46 (built September 2002 to August 2003) carries the September 2001 fuse card until the March 2003 facelift and card 6 953 026.9 after it; the ratings are the same on both, the later card only adds the adaptive headlights to its index. The panel is behind the glove-compartment lid: open the lid, turn the two white latches outwards and swing the panel down with the puller and the card on it.

This is the left-hand section up to the puller: the two flat MAXI sockets and the upright 50 A fuses 35, 36 and 37 at the outer end, then the two rows of ATO fuses, 1 to 15 above and 38 to 52 below, counted left to right with 38 beneath 1. Four flat pockets in between hold spares and positions 1 to 4 are empty.

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No.FunctionAmpDescription
1Not used
2Not used
3Not used
4Not used
55 AATOHorn relay (control side)
65 AATOVanity mirror lights; convertible soft-top control unit
75 AATORadio, navigation computer, on-board monitor, telephone and aerial amplifier (memory supply)
85 AATOSMG sequential gearbox control unit (M3)
95 AATOBrake-light switch, cruise control, clutch switch, general module, light module, on-board computer
105 AATOInstrument cluster
115 AATOAirbag control unit, side-airbag sensors and seat-belt buckle sensors
127.5 AATOSteering-column switch centre (supply for DSC, seat heating, roller sun blind, tyre pressure control and soft-top switches)
137.5 AATORoll-over protection system (convertible)
145 AATOEWS immobiliser control unit; starter interlock and gearshift lock
155 AATORain sensor; rear wiper and washer control (Touring)
3550 AMAXIABS / DSC hydraulic unit on four-wheel-drive cars; soft-top drive relay on the convertible
3650 AMAXISecondary air pump relay
3750 AMAXIElectric cooling fan
3815 AATOFront fog-light relay (15 A on the fuse card; 10 A in the wiring-diagram tables)
395 AATOTelephone: transceiver, hands-free and voice-input modules
405 AATODSC steering-angle sensor; gear-selector display illumination (US cars)
4130 AATORadio, amplifier, CD changer, navigation computer, on-board monitor
4230 AATOSteering-column switch centre (power for DSC, seat heating, roller sun blind, tyre pressure control and soft-top switches)
435 AATOInstrument cluster; OBD II diagnostic socket (US cars)
4420 AATOTrailer socket
4520 AATORear wiper and washer (Touring)
4620 AATOConvertible soft-top control unit and top relay (20 A); sliding/tilt sunroof module on other bodies (30 A)
4720 AATOCigarette lighter, front 12 V socket and oddment-compartment sockets
4830 AATOGeneral module (GM5): front window lifts
495 AATOGeneral module (GM5) control supply: central locking, interior lights, window lifts, washer pump, anti-theft alarm; aerial amplifier
5040 AATOHeater blower (blower switch or blower output stage)
5130 AATOHeadlight washer module
5230 AATOGeneral module (GM5): interior, glove-box and luggage-compartment lights, hand lamp, central locking, washer pump

Glove compartment fuse box, right half (fuses 16-34 and 53-71)

Right-hand section of the glove-compartment fuse panel on a 2003 model-year car, on the far side of the red fuse puller. To get at it, open the glove box, turn both white latches outwards and lower the panel; the fuse allocation card (the 2001 print, or 6 953 026.9 from March 2003) is clipped to the panel and its right-hand tables cover these positions.

The positions run in two rows from the puller to the right: 16 to 34 on top, 53 to 71 underneath, with each lower fuse directly below its upper neighbour. 16 to 21 are empty sockets, 66 holds a fuse only with the SMG gearbox, and spare fuses sit in the four flat pockets between the rows.

16171819202155522555235552455525555261010102755528555297.57.57.530555315553255533ABS5553430303053ABS202020541515155530303056ABS555577.57.57.558303030592525256030303061ABS7.57.57.5627.57.57.5635556430303065555665556730303068555693030307010101071
No.FunctionAmpDescription
16Not used
17Not used
18Not used
19Not used
20Not used
21Not used
225 AATODiesel engine control unit (DDE, M47TU and M57TU); SMG sequential gearbox control (M3)
235 AATOAuxiliary coolant pump of the heater
245 AATOAuto-dimming interior mirror; park distance control (PDC)
255 AATOPassenger-side heated outside mirror; heated washer-jet thermostat
265 AATOGarage door opener; cigarette lighter (Australian cars)
2710 AATOReversing-light relay; gear-position switch and transmission control (engine control)
285 AATOHeating and air-conditioning control panel, blower relay and A/C compressor relay
295 AATOEngine control unit (DME or DDE), unloader relay, automatic transmission control
307.5 AATOOBD II diagnostic socket, alternator, oil-level sensor, transmission control
315 AATOMirror adjustment switch; tyre pressure control (RDC) or tyre defect indicator (RPA) control unit
325 AATOLight switch centre (LSZ); xenon headlights; adaptive headlight control unit (Coupe and Convertible from 03.2003)
33ABS5 AATOABS / DSC control unit, steering-angle sensor, switch centre
345 AATOInstrument cluster; fuel-pump control unit (MS45 engine electronics)
53ABS30 AATOABS / DSC hydraulic unit (pump)
5420 AATOFuel pump relay (20 A on the card; 15 A on MS42/MS43 petrol six-cylinders, 25 A on DDE4.0 diesels)
5515 AATOHorns (via the horn relay)
56ABS30 AATOABS / DSC hydraulic unit (valves)
575 AATOFolding and memory outside mirrors; front window motors with anti-trap protection (Compact, Convertible from 03.2003)
587.5 AATORear window relay (Touring tailgate window); adaptive headlight control unit (Coupe and Convertible from 03.2003)
5930 AATOWindscreen wiper relay
6025 AATOGeneral module (GM5): central locking
61ABS30 AATODSC hydraulic unit
627.5 AATOHeater water valves
637.5 AATOA/C compressor relay
645 AATOAutomatic transmission control on diesel engines (DDE5); auxiliary parking heater control unit when fitted (20 A)
6530 AATODriver's seat adjustment and lumbar support
665 AATOSMG sequential gearbox (ignition-switch feed); unpopulated without SMG
675 AATOEWS immobiliser, auto-dimming interior mirror, anti-theft alarm (interior sensor, tilt sensor, siren)
6830 AATOHeated rear window relay
695 AATOTyre pressure control (RDC)
7030 AATOPassenger's seat adjustment, lumbar support and seat memory
7110 AATOGeneral module (GM5): rear window lifts on saloon and Touring (30 A); hinged rear windows on the Coupe (10 A)