Check the glove compartment area first; the main electrical panel is mounted behind a removable trim panel above the storage section, and access requires releasing two locking tabs at the top edge.
Use the printed chart attached to the back of the cover to match slot numbers with specific circuits such as lighting, audio system, climate control, and control modules. Each slot is labeled numerically, allowing quick identification without guessing.
If a system stops working, inspect the corresponding link by pulling it with the plastic extractor tool stored inside the panel. A broken metal strip or darkened plastic casing indicates failure, and replacement must match the exact amperage rating, typically 5A, 10A, 15A, 20A, or 30A.
A secondary power distribution panel is located in the trunk on the right side, behind a fabric cover. This section handles higher-load circuits such as rear electronics and battery distribution lines, and it should be checked when front panel slots appear intact.
BMW E90 Fuse Box Diagram Locations and Circuit Breakdown
Open the glove compartment and release the upper retaining clips to access the main electrical panel; this section contains most low- and mid-load circuits such as lighting, infotainment, and control modules.
Main Panel Circuit Allocation
- Slots 1–10: lighting systems, dashboard illumination, parking lights
- Slots 11–20: audio unit, central locking, power mirrors
- Slots 21–30: climate control module, blower motor relay feed
- Slots 31–40: onboard electronics, diagnostic interface, steering controls
The rear power distribution unit is located behind the right-side trunk liner; remove the fabric cover to reveal higher-capacity links responsible for battery supply lines, rear window heating, and auxiliary modules. These positions usually carry ratings from 30A up to 80A and are secured more tightly than cabin-mounted elements.
Use the numeric index printed on the access cover to match each slot with its assigned circuit; check both metal контакts on top of each link with a tester to confirm voltage presence before concluding a failure, avoiding unnecessary replacement.
Exact Fuse Box Locations in BMW E90 and How to Access Each Panel
Open the glove compartment and press the two upper locking tabs inward; the main electrical panel drops down on hinges, giving full access to the slot array and relay positions without removing additional trim.
A second power distribution section sits in the trunk on the right side behind a removable fabric cover; pull the plastic fastener, fold the lining back, and expose the high-current links connected directly to the battery, ensuring the ignition is off before touching any terminals.