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Chassis · E46

BMW E46
used parts

The enthusiast's BMW — E46 3 Series and the S54-powered M3. Switchgear, lighting, interior trim, and the original navigation Mk IV systems that age out first on every E46.

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Chassis guide

About the BMW E46

The E46 was BMW's fourth-generation 3 Series, sold 1998 through 2006 across sedan, coupe, convertible, and Touring (wagon) body styles. Engine range was M52TU, M54, and the S54 in the E46 M3. The E46 was the last 3 Series before BMW introduced iDrive — head units are physical-button radios and the Mk IV / Mk IV.5 navigation computers.

E46 is approaching classic territory. Original switchgear, interior trim, and M3-specific parts (S54 engine bits, CSL-specific items when sourced, larger M3 brakes) hold value. We pull switchgear, lighting, the original navigation heads, and the cooling-system parts (water pump, thermostat, expansion tank) most frequently replaced on a 20-year-old E46.

Subframe cracking on E46 Coupe and Convertible is well- documented — we don't sell subframes, but if your trailing arm mounts are cracking, that's a body-shop project unrelated to parts replacement. The infotainment and switchgear we sell are bolt-in with no welding required.

FAQ

Frequently asked questions about the BMW E46

Do E46 M3 parts fit a regular 330i?
Body, lighting, switchgear, and most interior parts — yes. M3-specific parts (S54 engine, SMG transmission, M3-only fenders/bumpers/sills, larger brakes, M-only seats and trim) are not interchangeable. Cosmetic and standard switchgear cross over freely.
How do sedan, coupe, convertible, and wagon E46 parts compare?
All four share platform, electronics, dashboard, and most engine-bay parts. Bodywork from B-pillar rearward is unique to each (Touring wagon shares more with sedan than coupe shares with convertible). Doors are different between 2-door coupe/convertible and 4-door sedan/Touring.
What's the most common E46 part failure?
Rear subframe cracks (especially Coupe/Convertible — check for hairline cracks at the trailing-arm mounts before the floor pan tears), cooling-system plastic (expansion tank, water pump impeller, thermostat housing), and the Mk IV navigation computer's optical drive. We stock tested replacements for all three.
How do I find my BMW chassis code?
Your chassis code is on the VIN plate inside the driver's door jamb, on the strut tower under the hood, and in your owner's manual under "Vehicle identification." It's a 3-character code like F30, E46, or G20 — the first letter is the platform generation and the digits are the body type. Searching by chassis is the single most reliable way to confirm BMW parts fitment.
Are these genuine OEM BMW parts?
Yes. Every part in our catalog was pulled from an actual BMW we acquired and dismantled in-house. We don't sell aftermarket or reproductions. Manufacturer part numbers in each title and the spec table are the same numbers you'll find in ETK/RealOEM for your VIN.