BMW fault code 0085
Engine electronics
In the engine electronics, code 0085 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.
Control unit selector switch
Module versions: Motor Electronics (DM524DS0), Motor Electronics (DM528DS0)
In: 3 Series (E36) 1990–2000, 5 Series (E39) 1995–2003, 7 Series (E38) 1994–2001, X5 (E53) 1999–2006
DME: Spring check, throttle actuator
Module versions: Motor Electronics (ME72KWP0), 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: Reference voltage for throttle potentiometer
Module version: Motor Electronics (BMS46DS0)
In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006
DME: Reference voltage for throttle potentiometer (EUIII code: P0608)
Module version: Motor Electronics (BMS46DS1)
In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006
DME: Signal, CAN ASC 3
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: Signal CAN ASC/DSC (ASC3)
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
DME: CAN timeout, steering-angle sensor
Module version: Motor Electronics (MSS54DS0)
In: 3 Series (E46) 1998–2006
Reading and clearing it
Fault code 0085 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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