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E46 N46
BMW 3 Series · Sedan · Coupe · Touring · Cabrio · 1998–2006
Updated Valvetronic four (E46/E90/E87).
Production run
1998–2006
Engines covered
7
Avg. part price
—
19902026
Interactive systems map
Inspect the E46 N46
Tap a hotspot to inspect that system
Systems map
Where it goes wrong
Each numbered hotspot counts the documented failure points in that area. Select one to see the specifics for this chassis and engine.
Failure points by system
Engine3
Fuel1
Documented issues per engine
4M43
4M52
5M54
4N42
4N46
4S54
4M57
Known weak points
What breaks on the E46 N46
Guides & playbooks
E46 N46 playbooks
Maintenance scheduleGive me a mileage-based maintenance schedule for a BMW 3 Series E46 N46, including the items the factory schedule skips.Buyer's inspectionI'm inspecting a used BMW 3 Series E46 N46. What exactly should I check, test drive and look for underneath?Build planPlan a staged performance build for a BMW 3 Series E46 N46 that stays reliable as a daily driver.Fault code lookupI have a fault code on my BMW 3 Series E46 N46. Walk me through what it means and how to confirm the cause.
Fits your E46 N46
Parts & tools
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