3 Buttons 315MHz 433MHz 868MHz Remote Key with PCF7953 ID46 Chip for BMW CAS2 5 Series E46 E60 E83 E53 E36 E38 E39 Please choose the correct frequency required Available with PCF7953 and ID46 chip Note: If you select key board only, you will receive the PCB without battery or key shell Fits: 1998–2006 for 3 Series (E46) 1996–2003 for 5 Series (E39) 2004–2005 for 5 Series (E60) 2004–2005 for 6 Series (E63/E64) 1994–2002 for 7 Series (E38) 2004–2010 for X3 (E83) 1999–2006 for X5 (E53) 2001–2002 for Z3 (E36) 2003–2008 for Z4 (E85) 2000–2003 for Z8 (E52) This is a complete key including circuit board, chip, and battery. It must be cut and programmed by a locksmith or dealer to match your vehicle. Please ensure your original key matches this one exactly.