Replacement BMW Key Blank One BMW Key Blade*** BMW3 / X144 for the following models: E30 & M3 3-Series (1984-93) E28 & M5 5-Series (1982-88) E24 & M6 6-Series (1977-89) E23 7-Series (1978-87) ***The BMW key blade must be cut to match your original key in order for it to work on your vehicle. Key cutting services are available through United Auto Security, or you can inquire with your local automotive locksmith.