Lonsdor BM3S-01 Universal Smart Key PCB – BMW G-Chassis (BDC2 / BDC3 / BCP)
Fits2020–2024 BMW 2 Series,2020–2024 BMW 3 Series,2020–2024 BMW 4 Series,+13 more
More Lonsdor universal keys — and which tool programs themTrade pricing for locksmiths & shops
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Low stock — 5 or fewer left. Order soon.
Volume pricing on this SKU
1–4 units
Wholesale
5–9 units
Save 5%
10–24 units
Save 10%
25+ units
Save 15%
Order by 4 PM ET — ships today
Ships from Ontario — Shipped to all 50 states from our Ontario facility — one freight price, quoted at checkout
Makes
Models
Years
2020–2024| Years | Make | Model / trim |
|---|---|---|
| 2020–2024 | BMW | 2 Series |
| 2020–2024 | BMW | 3 Series |
| 2020–2024 | BMW | 4 Series |
| 2020–2024 | BMW | 5 Series |
| 2020–2024 | BMW | 6 Series |
| 2020–2024 | BMW | 7 Series |
| 2020–2024 | BMW | 8 Series |
| 2020–2024 | BMW | X3 |
| 2020–2024 | BMW | X4 |
| 2020–2024 | BMW | X5 |
| 2020–2024 | BMW | X6 |
| 2020–2024 | BMW | X7 |
| 2020–2024 | BMW | Z4 |
| 2021–2024 | BMW | 1 Series |
| 2022–2024 | BMW | X1 |
| 2022–2024 | BMW | X2 |
Confirm the exact fit by FCC ID or part number before ordering.
Ships unprogrammed. Like any replacement key, it has to be programmed to the vehicle before it will operate. Programming method, tooling and PIN access vary by vehicle, year and platform, so we don’t publish per-vehicle procedures or tool compatibility here — match the part on the codes below and use your usual process for that platform. Not sure? Email the trade desk with the VIN or year/make/model before you order.
If it won't program on the listed vehicle, we refund it and pay the return freight. Two conditions only: the vehicle matches this listing, and the part comes back in resaleable condition — a blade cut only to turn the ignition for the programming attempt doesn’t void it. Reply with the vehicle, the tool you used and the error, and we send the return label. Read the guarantee.
The Lonsdor BM3S-01 is a universal smart key PCB engineered specifically for BMW G-Chassis vehicles equipped with BDC2, BDC3, and select BCP immobilizer systems. Designed for professional automotive locksmiths and technicians, this PCB provides a reliable and efficient solution for BMW key generation and add-key programming on modern BMW platforms. When paired with compatible Lonsdor key programming devices, the BM3S-01 enables fast, stable key creation while maintaining OEM-level performance. Its wide vehicle coverage and multi-system support make it an essential component for servicing late-model BMW vehicles. Original Lonsdor Aftermarket Key This product requires a Lonsdor machine: K518 Pro FCV KW100 Battery: CR2032 (NOT included) Buttons: Lock, Unlock, Trunk, Panic Aftermarket emergency key included
Specifications
- Brand
- Lonsdor
- Type
- Universal Keys
- Part number
- Buttons
- 4
- SKU
Key Features Universal smart key PCB for BMW G-Chassis Supports BDC2, BDC3, and BCP immobilizer systems Designed for Add-Key programming operations OEM-grade electronic components for reliability Compatible with BMW-style smart key shells Ideal for professional locksmith and automotive use Immobilizer System Compatibility BDC2 BDC3 BCP (Low-Configuration models only) ❌ Not compatible with BCP systems using the J29D5C chip
⚠️ Always verify vehicle system configuration before programming.
Best-Price Guarantee
Found it cheaper? We'll match it.
See the same in-stock part advertised for less by another Canadian or U.S. trade supplier? Send us the listing before you order and we'll match the price — we'd rather earn the reorder than lose it over a dollar.
- Same item, in stock, from a verified trade supplier
- Current advertised price — send the link or a screenshot
- Excludes clearance, liquidation, auction and obvious pricing errors
How to verify this universal keys fits
- Match the part number Lonsdor BM3S-01.
- Count the buttons: this universal keys has 4.
- Find the vehicle in the 16-row fitment table on this page; year ranges and trims matter.
Look it up by code or vehicle
If it doesn't program, it's on us
Every listing carries its FCC ID, part number and cross-references, so you can match the part in your hand before you order — and the trade desk will confirm it with you if you're not sure. If a key or remote you bought for the vehicle we listed it against still won't program, tell us within 30 days of delivery: we refund it and we pay the return freight. Two conditions, both fair — the vehicle matches the listing, and the part comes back in resaleable condition.
Confirm the exact part by FCC ID / part number / cross-reference
Won't program on the listed vehicle? We refund it and pay the return freight — 30 days from delivery
30-day trade returns on unused parts (20% restocking fee)
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