BMW / MINI - Which Security Module Do I Have?

The security module (EWS, CAS, FEM, or BDC) is the immobilizer and access control system in BMW/MINI vehicles. It ensures only authorized keys can start the vehicle by validating the key's transponder, ISN (Individual Serial Number), and other security data before sending a start authorization to the DME (engine control) and, where applicable, the EGS (transmission control). Each iteration offers increased security and functionality:

• EWS (Electronic Immobilizer System): Basic immobilizer with key transponder verification.
• CAS (Car Access System): Advanced immobilizer with rolling codes and Comfort Access features.
• FEM (Front Electronic Module): Integrates security with body control functions.
• BDC (Body Domain Controller): A centralized system managing security, Comfort Access, and multiple vehicle systems.

Curious about which security module your vehicle uses? Check the list below or reach out to us with your VIN for assistance.

BMW 1 Series

• E81 (Hatchback): 2007-2011 | CAS3/CAS3+
• E82 (Coupe): 2007-2014 | CAS3/CAS3+
• E87 (Hatchback): 2004-2011 | CAS2/CAS3/CAS3+
• E88 (Convertible): 2008-2015 | CAS3+
• F20 (Hatchback): 2011-2018 | FEM
• F21 (Hatchback): 2012-2018 | FEM
• F52 (Sedan 4): 2016- | BDC
• F40 (Hatchback): 2018- | FEM or BDC

BMW 2 Series

• F22 (Coupe): 2014- | FEM
• F23 (Convertible): 2014- | FEM
• F44 (Gran Coupe): 2020- | BDC
• F45 (Active Tourer): 2014- | BDC
• F46 (Gran Tourer): 2015- | BDC
• F44: 2022- | BDC 2

BMW 3 Series

• E21: 1975-1982 | No immobilizer
• E30: 1982-1990 | No immobilizer
• E36: 1992-1999 | EWS1/EWS2
• E46: 1998-2006 | EWS3
• E90 (Sedan): 2005-2012 | CAS3/CAS3+
• E91 (Wagon): 2005-2013 | CAS3/CAS3+
• E92 (Coupe): 2006-2010 | CAS3/CAS3+
• E93 (Convertible): 2007-2014 | CAS3/CAS3+
• F30 (Sedan): 2012-2018 | FEM
• F31 (Wagon): 2012-2018 | FEM
• F34 (Gran Turismo): 2013-2020 | FEM
• F35: 2015- | FEM
• G20 (Sedan): 2018- | BDC
• G21 (Wagon): 2018- | BDC

BMW 4 Series

• F32 (Coupe): 2013-2020 | FEM
• F33 (Convertible): 2013-2020 | FEM
• F36 (Gran Coupe): 2014- | FEM
• G22: 2020- | BDC 2

BMW 5 Series

• E28: 1981-1987 | No immobilizer
• E34: 1988-1995 | EWS
• E39: 1995-2003 | EWS1/EWS2/EWS3
• E60 (Sedan): 2004 | CAS2
• E61 (Wagon): 2002-2010 | CAS3/CAS3+
• F07 (Gran Turismo): 2009-2016 | CAS4/CAS4+
• F10 (Standard Wheelbase): 2010-2016 | CAS4/CAS4+
• F11 (Wagon): 2011-2016 | CAS4/CAS4+
• F18 (Long Wheelbase): 2010-2016 | CAS4/CAS4+
• G30 (Standard Wheelbase): 2016- | BDC
• G31 (Wagon): 2017- | BDC
• G38 (Long Wheelbase): 2017- | BDC

BMW 6 Series

• E24: 1976-1982 | No immobilizer
• E63 (Coupe): 2002-2007 | CAS3/CAS3+
• E64 (Convertible): 2002-2007 | CAS3/CAS3+
• F06 (Gran Coupe): 2011- | CAS4/CAS4+
• F12 (Convertible): 2012-2019 | CAS4/CAS4+
• F13 (Coupe): 2011-2018 | CAS4/CAS4+
• G32 (Gran Turismo): 2017- | BDC

BMW 7 Series

• E23: 1977-1979 | No immobilizer
• E32: 1986-1994 | No immobilizer
• E38: 1994-2001 | EWS1/EWS2/EWS3
• E65 (Standard Wheelbase): 2001-2008 | CAS1
• E66 (Long Wheelbase): 2001-2008 | CAS2
• F01 (Standard Wheelbase): 2008-2012 | CAS4/CAS4+
• F02 (Long Wheelbase): 2008-2012 | CAS4/CAS4+
• F03 (Protection): 2009-2012 | CAS4/CAS4+
• F04 (Hybrid): 2010-2012 | CAS4/CAS4+
• G11 (Standard Wheelbase): 2016- | BDC
• G12 (Long Wheelbase): 2016- | BDC

BMW 8 Series

• E31: 1989-1999 | EWS
• G14 (Convertible): 2018- | BDC
• G15 (Coupe): 2018- | BDC
• G16 (Gran Coupe): 2018- | BDC

BMW X1

• E84: 2009-2016 | CAS3/CAS3+
• F48: 2015- | BDC
• F49 (Long Wheelbase): 2016- | BDC

BMW X2

• F39: 2018- | BDC

BMW X3

• E83: 2003-2010 | EWS4
• F25: 2011-2018 | CAS4/CAS4+
• G01: 2017- | BDC
• G08 (China): 2018- | BDC

BMW X4

• F26: 2014-2018 | CAS4/CAS4+
• G02: 2018- | BDC

BMW X5

• E53: 1999-2006 | EWS2/EWS3/EWS4
• E70: 2006-2013 | CAS3/CAS3+
• F15: 2013-2018 | BDC
• G05: 2018- | BDC

BMW X6

• E71: 2008-2015 | CAS3/CAS3+
• E72 (Hybrid): 2010-2015 | CAS3/CAS3+
• F16: 2014-2019 | BDC
• G06: 2019- | BDC

BMW X7

• G07: 2019- | BDC

BMW M2

• F87: 2015- | BDC

BMW M3

• E90 (Sedan): 2005-2012 | CAS3/CAS3+
• E92 (Coupe): 2006-2010 | CAS3/CAS3+
• E93 (Convertible): 2007-2010 | CAS3/CAS3+
• F80 (Sedan): 2014-2018 | FEM

BMW M4

• F82 (Coupe): 2014- | FEM
• F83 (Convertible): 2014- | FEM

BMW M5

• E60: 2003-2009 | CAS2/CAS3/CAS3+
• F10: 2010-2016 | CAS4/CAS4+
• F90: 2018- | BDC

BMW M6

• E63 (Coupe): 2005-2010 | CAS3/CAS3+
• E64 (Convertible): 2006-2010 | CAS3/CAS3+
• F06 (Gran Coupe): 2012- | CAS4/CAS4+
• F12M (Convertible): 2012- | CAS4/CAS4+
• F13M (Coupe): 2012- | CAS4/CAS4+

BMW M8

• F91 (Convertible): 2020- | BDC
• F92 (Coupe): 2020- | BDC

BMW X3 M

• F97: 2020- | BDC

BMW X4 M

• F98: 2020- | BDC

BMW X5 M

• E70: 2006-2013 | CAS3/CAS3+
• F85: 2014- | BDC
• F95: 2020- | BDC

BMW X6 M

• E71: 2008-2015 | CAS3/CAS3+
• F86: 2014- | BDC

BMW X7 M

• F94: 2019- | BDC

BMW i3

• i01: 2013- | BDC

BMW i8

• i12: 2014-2016 | BDC
• i15 (Roadster): 2016- | BDC

BMW Z3

• E36: 1992-1999 | EWS2 (99)
• E37 (Convertible): 1992-1999 | EWS2 (99)

BMW Z4

• E85 (Roadster): 2002-2009 | EWS2
• E86 (Coupe): 2006-2009 | CAS2
• E89 (Roadster): 2009-2016 | CAS3/CAS3+
• G29 (Convertible): 2019- | BDC

BMW Z8

• E52 (Roadster): 1999-2003 | EWS2/EWS3

BMW MINI

• R50 (Cooper): 2000-2006 | EWS
• R52 (Convertible): 2002-2008 | EWS/CAS
• R53 (Cooper S): 2000-2006 | EWS/CAS
• R54 (Clubman): 2015- | BDC
• R55 (Clubman): 2007-2014 | CAS3/CAS3+
• R56: 2005-2012 | CAS3/CAS3+
• R57 (Convertible): 2010-2015 | CAS3
• R57 (Cabrio): 2013- | CAS3
• R58 (Coupe/Roadster): 2012-2019 | CAS3
• R60 (Countryman): 2010-2017 | CAS3
• R61 (Paceman): 2013- | CAS3
• F54 (Clubman): 2013-2019 | BDC
• F55: 2013-2019 | BDC
• F56: 2013-2019 | BDC
• F60 (Countryman): 2015-2019 | BDC