BMW fault code 521C

Transfer case

Transfer box (VTG): No current coding data stored

Module version: Transfer box (LMV_84)

In: 3 Series (E90) 2005–2012, 3 Series (E91) 2005–2012, 3 Series (E92) 2006–2013, X1 (E84) 2009–2015, X5 (E70) 2006–2013, X6 (E71) 2008–2014, X6 (E72) 2009–2011

Reading and clearing it

Fault code 521C is a BMW code, stored in the car's transfer case, 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 transfer case is on: X5 (E53), 5 Series (E60), 5 Series (E61), X5 (E70), X6 (E71), X6 (E72), X3 (E83), X1 (E84), 3 Series (E90), 3 Series (E91), 3 Series (E92)

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