The button car key is designed for BMW vehicles with the CAS system, including the E46, E60 and X3 E83 models, as well as the BMW Z4 E85/6. Compatibility with BMW 3 and 5 Series models applies to 2005 and later, while the X3 is listed for 2006.
- Type: Button key
- Vehicle system: CAS
- Compatibility: BMW E46, BMW E60, BMW X3 E83, BMW Z4 E85/6
- Compatible years: BMW 3 Series from 2005, BMW 5 Series from 2005, BMW X3 Series 2006
- Flip key: No