X AUTOHAUX BMW 3-Button Replacement Key Fob 2-Pack 315MHz KR55WK49127 Style with 46 Chip & Battery Included

This is a pair of X AUTOHAUX 315MHz KR55WK49127-style replacement smart proximity key fobs for compatible BMW models, featuring three buttons (Lock, Unlock, Trunk) and built-in 46 chip — batteries included.

If your BMW original key is lost, damaged, or worn, these aftermarket keyless entry remotes offer a cost-effective replacement that matches the KR55WK49127/KR55WK49123 FCC IDs. They are designed for model years and series often using the 315MHz frequency and the 46 transponder chip; however, these are semi-intelligent remotes and do not provide push-button start. A working key is required during programming and a qualified locksmith or dealer must cut and program the blade and remote to your car.

Which BMW models and years will these replacement fobs fit?

These remotes are compatible with a range of BMW series produced in the mid-2000s to early 2010s. Confirm the OE part number and the appearance of your original key to ensure a match before buying.

• Compatible series: 1, 3, 5, 6, M5, M6, X5, X6, M3, Z4 (specific years listed below).
• Model years include: 1 Series (2006–2010), 3 Series (2006–2011), 5 Series (2006–2011), 6 Series (2006–2010).
• Also fits: M5 (2006–2009), X5 (2006–2014), M6 (2006–2010), M3 (2008–2011), Z4 (2013–2016), X6 (2008–2014).

How do I get this key fob programmed and the blade cut?

Programming and cutting require specialized tools and access to the vehicle’s immobilizer system, so a dealer or qualified locksmith must perform these steps. A functioning key fob already registered to the car is necessary to add the new remote to the vehicle’s memory.

• Take both remotes and your vehicle to a locksmith or BMW dealer for programming.
• Bring proof of ownership and the vehicle’s VIN; cutting the metal blade must match your door/ignition profile.
• Confirm the locksmith understands KR55WK49127/KR55WK49123 remotes and 46 chip programming requirements.

What features and limitations should I expect from these remotes?

These are 3-button keyless entry remotes with basic lock/unlock and trunk release functions, plus a built-in 46 transponder chip for immobilizer recognition. They are not full smart-keys and do not support remote engine start or one-button push-to-start.

• Buttons: Lock, Unlock, Trunk release — intuitive three-button layout.
• Frequency: 315MHz; FCC/part numbers KR55WK49127 and KR55WK49123.
• Includes 46 transponder chip and installed battery; semi-intelligent, not for keyless ignition.

How should I verify compatibility before purchase?

Always compare the original remote’s FCC/part number, the button pattern, and the physical dimensions with the replacement photos to avoid ordering an incompatible unit. The seller’s listing includes the product image and OE references — double-check those before proceeding.

• Check the OE/FCC ID on your original key against KR55WK49127 or KR55WK49123.
• Confirm the three-button layout and the blade shape match your current key.
• Measure approximate size (6.8 x 3.6 cm) and review photos for visual confirmation.

Who is this for? These X AUTOHAUX replacement fobs are intended for BMW owners seeking a budget-friendly pair of spare remotes that replicate the KR55WK49127/KR55WK49123 style and 315MHz frequency. They suit drivers with model years listed above who understand that professional key cutting and programming are required; choose this set if you need two matching remotes that include the 46 chip and batteries for immediate programming at a locksmith or dealership.