BMW fault code 0068
Engine electronics
In the engine electronics, code 0068 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.
Wrong values in fault memory
Module versions: Motor Electronics (DM5212R5), Motor Electronics (DM5212R6), Motor Electronics (DM528DS3)
In: 5 Series (E39) 1995–2003, 7 Series (E38) 1994–2001, X5 (E53) 1999–2006
Wrong values in fault memory OBDII error !!
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: Signal, switch, clutch
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: Activation, fuel injector, cylinder 1
Module version: Motor Electronics (BMS46DS0)
In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006
DME: Activation, fuel injector, cylinder 1 (EUIII code: P0201)
Module version: Motor Electronics (BMS46DS1)
In: 3 Series (E36) 1990–2000, 3 Series (E46) 1998–2006
DDE: Control unit fault (calibration range R1 faulty)
Module version: Digital Diesel Electronics (DDE22DS0)
Which BMWs have this version depends on the engine and equipment, so we don't list them here; AutoLingo for BMW reads which version your car has.
DME: Control VANOS, end-pos. fault, exhaust camshaft (OBDII: P1520)
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: VANOS exhaust camshaft, end position not reached
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
internal index 86
Module version: Motor Electronics (MSS54DS0)
In: 3 Series (E46) 1998–2006
Reading and clearing it
Fault code 0068 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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