BMW fault code 0021
Instrument cluster
In the instrument cluster, code 0021 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.
Implausible SMG contents
Module version: Instrument cluster (KOMBI46R)
In: 3 Series (E46) 1998–2006
SMG
Module version: Instrument cluster (KOMBI85)
In: Z4 (E85) 2002–2008
Reading and clearing it
Fault code 0021 is a BMW code, stored in the car's instrument cluster, 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 instrument cluster 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)
Coming soon
Enter your email address to hear when AutoLingo for BMW is ready.