How to know if your BMW is CAS1-CAS4 or FEM BDC immobilizer system? Here is a quick reference table provided by www.obdii365.com.
| BMW Chassis and Corresponding Immobilizer System | ||
| BMW 1 Series | ||
| Chassis | Year | Immobilizer system |
| 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 | ||
| Chassis | Year | Immobilizer system |
| 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 | ||
| Chassis | Year | Immobilizer System |
| E21 | 1975-1982 | |
| E30 | 1982-1990 | |
| 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 | ||
| Chassis | Year | Immobilizer System |
| F32( Coupe) | 2013-2020 | FEM |
| F33(Convertible) | 2013-2020 | FEM |
| F36(Gran Coupe ) | 2014- | FEM |
| G22 | 2020- | BDC 2 |
| BMW 5 series | ||
| Chassis | Year | Immobilizer System |
| E28 | 1981-1987 | |
| 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 | ||
| Chassis | Year | Immobilizer System |
| E24 | 1976-1982 | |
| 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 | ||
| Chassis | Year | Immobilizer System |
| E23 | 1977-1979 | |
| E32 | 1986-1994 | |
| 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 | ||
| Chassis | Year | Immobilizer System |
| E31 | 1989-1999 | EWS |
| G14(Convertible) | 2018- | BDC |
| G15(Coupe ) | 2018- | BDC |
| G16(Gran Coupe ) | 2018- | BDC |
| BMW X1 | ||
| Chassis | Year | Immobilizer System |
| E84 | 2009-2016 | CAS3/CAS3+ |
| F48 | 2015- | BDC |
| F49(Long wheelbase) | 2016- | BDC |
| BMW X2 | ||
| Chassis | Year | Immobilizer System |
| F39 | 2018- | BDC |
| BMW X3 | ||
| Chassis | Year | Immobilizer System |
| E83 | 2003-2010 | EWS4 |
| F25 | 2011-2018 | CAS4/CAS4+ |
| G01 | 2017- | BDC |
| G08(China) | 2018- | BDC |
| BMW X4 | ||
| Chassis | Year | Immobilizer System |
| F26 | 2014-2018 | CAS4/CAS4+ |
| G02 | 2018- | BDC |
| BMW X5 | ||
| Chassis | Year | Immobilizer System |
| E53 | 1999-2006 | EWS2/EWS3/EWS4 |
| E70 | 2006-2013 | CAS3/CAS3+ |
| F15 | 2013-2018 | BDC |
| G05 | 2018- | BDC |
| BMW X6 | ||
| Chassis | Year | Immobilizer System |
| E71 | 2008-2015 | CAS3/CAS3+ |
| E72(hybrid) | 2010-2015 | CAS3/CAS3+ |
| F16 | 2014-2019 | BDC |
| G06 | 2019- | BDC |
| BMW X7 | ||
| Chassis | Year | Immobilizer System |
| G07 | 2019- | BDC |
| BMW M Power series M2 | ||
| Chassis | Year | Immobilizer System |
| F87 | 2015- | BDC |
| BMW M Power series M3 | ||
| Chassis | Year | Immobilizer System |
| E90(Sedan) | 2005-2012 | CAS3/CAS3+ |
| E92(Coupe ) | 2006-2010 | CAS3/CAS3+ |
| E93(Convertible) | 2007-2010 | CAS3/CAS3+ |
| F80(Sedan) | 2014-2018 | FEM |
| BMW M Power series M4 | ||
| Chassis | Year | Immobilizer System |
| F82(Coupe ) | 2014- | FEM |
| F83(Convertible) | 2014- | FEM |
| BMW M Power series M5 | ||
| Chassis | Year | Immobilizer System |
| E60 | 2003-2009 | CAS2/CAS3/CAS3+ |
| F10 | 2010-2016 | CAS4/CAS4+ |
| F90 | 2018- | BDC |
| BMW M Power series M6 | ||
| Chassis | Year | Immobilizer System |
| 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 M Power series M8 | ||
| Chassis | Year | Immobilizer System |
| F91(Convertible) | 2020- | BDC |
| F92(Coupe ) | 2020- | BDC |
| BMW M Power series X3 M | ||
| Chassis | Year | Immobilizer System |
| F97 | 2020- | BDC |
| BMW M Power series X4 M | ||
| Chassis | Year | Immobilizer System |
| F98 | 2020- | BDC |
| BMW M Power series X5 M | ||
| Chassis | Year | Immobilizer System |
| E70 | 2006-2013 | CAS3/CAS3+ |
| F85 | 2014- | BDC |
| F95 | 2020- | BDC |
| BMW M Power series X6 M | ||
| Chassis | Year | Immobilizer System |
| E71 | 2008-2015 | CAS3/CAS3+ |
| F86 | 2014- | BDC |
| BMW M Power series X7 M | ||
| Chassis | Year | Immobilizer System |
| F94 | 2019- | BDC |
| BMW electric series i3 | ||
| Chassis | Year | Immobilizer System |
| i01 | 2013- | BDC |
| BMW electric series i8 | ||
| Chassis | Year | Immobilizer System |
| i12 | 2014-2016 | BDC |
| i15(Roadster) | 2016- | BDC |
| BMW Z series Z3 | ||
| Chassis | Year | Immobilizer System |
| E36 | 1992-1999 | EWS2(99) |
| E37(convertible) | 1992-1999 | EWS2(99) |
| BMW Z series Z4 | ||
| Chassis | Year | Immobilizer System |
| E85(Roadster) | 2002-2009 | EWS2 |
| E86(Coupe ) | 2006-2009 | CAS2 |
| E89(Roadster) | 2009-2016 | CAS3/CAS3+ |
| G29(convertible) | 2019- | BDC |
| BMW Z series Z8 | ||
| Chassis | Year | Immobilizer System |
| E52(Roadster) | 1999-2003 | EWS2/EWS3 |
| BMW MINI | ||
| Chassis | Year | Immobilizer System |
| R50(Cooper) | 2000-2006 | EWS |
| R52(Convertible) | 2002-2008 | EWS/CAS |
| R53(CooperS) | 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(Country Man) | 2010-2017 | CAS3 |
| R61(Pace Man) | 2013- | CAS3 |
| F54(Clubman) | 2013-2019 | BDC |
| F55 | 2013-2019 | BDC |
| F56 | 2013-2019 | BDC |
| F60(Countryman) | 2015-2019 | BDC |
Related reading:
List of 2000-2019 BMW CAS/FEM/BDC IMMO Corresponding for BMW Models
