Replacement 3 Button Diamond Key Fob Case Shell For BMW E46 3 5 7 Z3 + Battery
Transponder chip/ electronic: No. For BMW 1 3 5 7 Series X5 X3 Z3 Z4 E46 E39 E60 E63 E53. - Existing circuit board and transponder chip can be installed from your original key into the new case. - BMW 3 button remote key fob service repair kit.