BMW fault code 00BD
Engine electronics
In the engine electronics, code 00BD means different things depending on the version of the module in the car. Find your car below; the app shows the right one for yours.
DME: (275) BD DMTL module
Module version: Motor Electronics (ME72KWP0)
In: 3 Series (E46) 1998–2006, 5 Series (E39) 1998–2003, 7 Series (E38) 1998–2001, X5 (E53) 1999–2006, Z8 (E52) 2000–2003
DME: DMTL module
Module version: Motor Electronics (ME72KWP1)
In: 3 Series (E46) 1998–2006, 5 Series (E39) 1995–2003, 7 Series (E38) 1994–2001, X5 (E53) 1999–2006, Z8 (E52) 2000–2003
DME: Heat output, ox.sensor before cat.conv., bank 2 (OBDII: P1133; EUIII: P0155)
Module version: Motor Electronics (MS420DS0)
In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006, 5 Series (E39) 1998–2003, 7 Series (E38) 1998–2001
DME: Insufficient heat output, oxygen sensor before catalytic converter, bank 2
Module version: Motor Electronics (MS430DS0)
In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006, 5 Series (E39) 1998–2003, X3 (E83) 2003–2010, X5 (E53) 1999–2006, Z4 (E85) 2002–2008
Reading and clearing it
Fault code 00BD is a BMW code, stored in the car's engine electronics, not a generic OBD2 code (P0xxx): a generic OBD2 reader only reaches the engine's emissions faults, so it won't show it. AutoLingo for BMW reads it with BMW's own diagnostic protocols, in plain English, with the details the module stored about it, and clears it after a repair. If a fault comes right back after it's cleared, the problem is still there.
The engine electronics is on: 8 Series (E31), 5 Series (E34), 3 Series (E36), Z3 (E36/7), 7 Series (E38), 5 Series (E39), 3 Series (E46), Z8 (E52), X5 (E53), X3 (E83), Z4 (E85), Z4 (E86)
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