BMW X5 Series keyless entry remotes can cost up to $250 at your local dealership! Get those key fobs at 50% discount on our website. 180-day money back guarantee. BMW X5 Series keyless transmitter can lock/unlock your doors, trunk and start your car on late model BMW X5 Series luxury models. Always shop online and save money on BMW X5 Series keyless system controls, smart keys, proximity remotes and keys.