Origin: CN Customization: No R/C Function: Without Interchange Part Number: for E38 E39 E46 X3 X5 Z3 Z4 1/3/5/7 Series Manufacturer Part Number: 315MHz / 433MHz Other Part Number: ID44 Chip Material Type: ABS Country/Region of Car Manufacture: In China Condition: Color: As shown in picture Button: 3 Buttons Circuit Board: Yes Frequency: 315MHz / 433MHz Battery: Included Blade Type: HU58 / HU92 Blade Transponder: ID44 (pcf7935AS / 7931) Interchangeable Frequency Instruction: Press the unlock button continuously, then press the trunk button five times. The frequency can be switched between 315MHz and 433MHz. This feature helps reduce inventory costs. Fitment: 1998–2005 for 3, 5, 7 Series 1998–2005 for X5, Z3, Z4 2001–2004 for 330, 330i 2001–2004 for 525, 525i 1998–2000 for X5, Z3, Z4 2003–2005 for 3, 5, 7 Series 2001–2004 for 3 Series 1998–1999 for 3, 5, 7 Series 1998–2000 for 325, 325i, 325ci + i ci xi 2001–2004 for 325, 325i For 325, 330, 318, 525, 530, 540, E38, E39, E46, M5, X3, X5, E65 And other models with the same key blank and battery holder specifications as listed above Important Notes: 1. If your original key has the same shape, frequency, and buttons, it may be compatible. Please compare carefully before ordering. 2. The key blade must be cut by a local dealer or locksmith. Programming must also be done by a professional. There is no user-programmable method available. 3. Ensure your remote uses the same transmitter and chip type as this product before purchase. Compare carefully before ordering. 4. The image shows the actual product. Please compare your key shell to ensure compatibility before purchasing. Package Includes: 1 x Remote Control Key