X AUTOHAUX 2pcs 315MHz KR55WK49127 Replacement Smart

This is a two-piece replacement smart proximity keyless entry remote for many BMW models (2006–2014) featuring 3 buttons and a built-in 46 chip at 315MHz.

If your original BMW remote is lost, damaged, or the battery no longer holds charge, this X AUTOHAUX replacement set provides a like-for-like option built to the same FCC/part references (KR55WK49127 / KR55WK49123) and frequency (315MHz). Each fob includes the common lock, unlock and trunk-release buttons and accepts a cut door key; however, it’s a semi-intelligent remote and does not support one-button engine start. These remotes arrive with batteries installed but require professional key cutting and programming to activate vehicle functions.

How do I know this fob fits my BMW?

Confirm fit by checking the OEM part numbers or the physical button layout on your existing key. This remote matches the KR55WK49127/KR55WK49123 references and the 315MHz frequency used on many BMW models built between 2006 and 2014.

• Compare FCC/part number stamped on your original remote.
• Verify the three-button layout (lock, unlock, trunk) matches your current key.
• Check vehicle model years listed: BMW 1, 3, 5, 6, M5, M6, M3, X5, X6, Z4 ranges as specified.

What programming and cutting steps are required?

These key fobs must be cut and programmed by a qualified locksmith or dealership—programming cannot be completed without a working key already present in most BMW systems. Success depends on correct cutting of the metal blade and proper vehicle programming using diagnostic tools.

• Bring a working key fob when possible; many systems require it to add a new key.
• Have a certified locksmith or BMW dealer cut the supplied metal key blade to match your locks.
• Use professional programming equipment; consult multiple locksmiths if you encounter issues.

What functionality should I expect from this replacement remote?

The X AUTOHAUX remote provides standard remote conveniences—remote locking, unlocking, and trunk release—with responsive wireless performance thanks to its built-in 46 chip. It does not provide push-button engine start or higher-level “smart key” proximity start functions.

• Three-button control: lock, unlock, trunk release.
• Built-in 46 transponder chip for immobilizer recognition after programming.
• Battery included; replaceable when needed.

What should I inspect before buying?

Prior to purchase, compare the physical appearance and part numbers with your existing remote to ensure compatibility. Confirm your vehicle’s model year is listed and plan for professional cutting and programming as part of installation costs.

• Match OE number/FCC ID and button pattern to your original remote.
• Note the fob size (approximately 6.8 x 3.6 cm) to confirm handling comfort.
• Budget for locksmith or dealer programming and key cutting fees.

Who is this for: drivers of compatible BMW vehicles (model years listed) who need a direct replacement remote with a genuine-style 46 chip and 315MHz frequency. This two-pack suits owners who want a backup pair, a replacement for lost keys, or a lower-cost option versus dealership remotes—so long as you have a locksmith or dealer available to cut and program the keys to your car.