Chart
| Model | EWS | CAS | FEM / BDC |
|---|---|---|---|
| 1 / 2 Series | — | E82, E87, E88 | F20, F22, F23, G-codes |
| 3 / 4 Series | E46 | E90–E93 | F30–F36, G20, G22 |
| 5 Series | E39 | E60, F10 (CAS4) | G30, G60 |
| 7 Series | E38 | E65 (CAS1), F01 (CAS4) | G11, G70 |
| X3 | — | E83, F25 (CAS4) | G01 |
| X5 / X6 | E53 | E70, E71 | F15, F16, G05, G06 |
| Mini | R50, R53 | R55–R61 | F54–F60 |
Simplified; some cars change system mid-generation. We confirm by text.
Why it matters
EWS and CAS cars are usually the quickest. FEM and BDC cars often need the module read before an all keys lost key can be made.
Written by Key Monkey, European car key specialist in Marietta, GA. Updated October 23, 2026.