BMW F-chassis 5 7 Series 523 528 535 550 730 740 750 760 Remote Key /315Mhz /433Mhz /868Mhz /CAS4 System/

Brand Name:SUAYMAK Customization:No R/C Function:With Frequency:315/433/868Mhz Buttons:4 Buttons Logo:no Key blade:Yes Battery:Yes Chip:Yes System:CAS4 Description: (1). Here listed is a new smart key for BMW 5&7 series, F-chassis CAS4 system. (2). The key has 3 kinds of frequency, 315/433/868MHz. Please select a correct one. (3). The item includes key shell, blade, battery circuit board and logo. It's a full key. (4). Please ensure your original key has the same appearance and frequency. Then ok to buy. Note - the marking on key shell is 315MHz. the circuit board and chip is correct for 315,433,868MHz respectively. Where do I find the key's frequency? Open the battery cover of your key. You will find the key's frequency is written on it.

How do I use the new key? You will need to program the key and cut key blade at local locksmith or BMW service center. This key doesn't support manual programming. It needs equipment to do the programming.