Brand Guide · BMW

BMW Key Replacement Guide

All BMW models · Updated August 2026

Choose your BMW model below to see compatible smart keys, flip keys and remotes with OEM part numbers, chip types and frequencies.

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BMW models

ModelCompatible keys
1 3 5 6 7 Series13
3 Series4
7 Series4
All G-Series1
CAS311
CAS416
CAS4 EWS42
CAS4+ EWS51
CAS4+ FEM EWS564
F Series21
FEM25
FEM System key + CAS4 system4
FEM System key +CAS4 system3
FEM System key+CAS4 system5
G Series12
I34
I84
X1 X3 X4 X5 X612
X521

Or use the Key Finder to check any make and model.