Guide · BMW

BMW CAS3 Key Replacement Guide

Last updated: September 2026 · Verified against OEM part numbers

Quick answer — BMW CAS3

The BMW CAS3 (2006-2014) uses the KR55WK49147 smart key — 433.9 MHz (SKU PCK-BM-2197) — verified against the original OEM part number. See every compatible option in the table below.

OEM part number: KR55WK49147
Frequency: 433.9 MHz
Key type: Smart Key
Years covered: 2006-2014
Wholesale: MOQ 5 units per SKU, models mixable in one order

BMW CAS3 car key 433.9MHz - aftermarket replacement

Which BMW CAS3 key fits your vehicle?

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Compatible keys for BMW CAS3

Years	Photo	Key
2006-2014		(European Market) OEM Board KR55WK49147 KR55WK49123 433.9MHz 46 Chip Smart Key for BMW CAS3 SKU: PCK-BM-2197
2006-2014		(Southeast Asian Market) OEM Board KR55WK49147 KR55WK49123 434.2MHz 46 Chip Smart Key for BMW CAS3 SKU: PCK-BM-2198
2006-2014		OEM Board KR55WK49147 KR55WK49123 434MHz 46 Chip Smart Key for BMW CAS3 SKU: 原厂板 CAS3 434 全智能
2006-2014		South Korea Version KR55WK49147 315LP MHz ASK 46 Chip Smart Key for BMW CAS3 SKU: PCK-BM-2194
2006-2014		EZRF KR55WK49127 868MHz 46 Chip Slot Key for BMW CAS3 SKU: PCK-BM-2200
2006-2014		KR55WK91234 315MHz FSK 46 Chip Slot Key for BMW CAS3 SKU: PCK-BM-2190
2006-2014		KR55WK49147 868MHz 46 Chip Smart Key for BMW CAS3 SKU: PCK-BM-2295
2006-2014		KYDZ South Korea Version KR55WK91234 315LP MHz ASK 46 Chip Slot Key for BMW CAS3 SKU: 315lp-ASK remote
2006-2014		KYDZ KR55WK49127 868MHz 46 Chip Slot Key for BMW CAS3 SKU: PCK-BM-2199
2006-2014		EZRF KR55WK91234 433MHz 46 Chip Slot Key for BMW CAS3 SKU: cas3-433
2006-2014		WJZ KR55WK49147 315MHz FSK NXP7945 Chip Smart Key (Keyless Go) for BMW CAS3 SKU: PCK-BM-2191

Before you order

Match the year range — BMW changed key systems across model years. Check your registration year.
Check your current key — the OEM number printed on your key matches the table above.
Programming — smart keys need a compatible programmer (Xhorse, VVDI, Autel). We can advise which one works for each key.

Frequently asked questions

What frequency is the BMW CAS3 key?

The BMW CAS3 key operates on 433.9 MHz. Frequency is fixed in the key hardware and cannot be reprogrammed — a key bought on the wrong frequency will not lock, unlock or start the car.

Which key fits my BMW CAS3?

The BMW CAS3 (2006-2014) uses the (European Market) OEM Board KR55WK49147 KR55WK49123 433.9MHz 46 Chip Smart Key for BMW CAS3 (SKU PCK-BM-2197). Check the table above for all compatible options, verified against OEM part numbers.

Do you supply BMW CAS3 keys wholesale?

Yes. We supply locksmiths and key distributors at wholesale prices with MOQ from 5 units. Message us on WhatsApp for today's price list.

Can a BMW CAS3 key be programmed without the dealer?

In most cases yes, using tools like Xhorse, VVDI or Autel. We can advise the right programmer for each key SKU.

Ready to order a BMW CAS3 key?