BMW fault code 63F9
Electronic Power Steering
In the electronic power steering, code 63F9 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.
Reduction of power steering assistance (resonant vibration)
Module version: Electronic Power Steering (EPS_72)
In: X5 (E70) 2006–2013, X6 (E71) 2008–2014, X6 (E72) 2009–2011
EPS: Reduction, servo power, due to detection of chatter
Module version: Electronic Power Steering (EPS_90)
In: 1 Series (E87) 2006–2011, 1 Series (E82) 2007–2013, 1 Series (E81) 2007–2011, 1 Series (E88) 2008–2013, 3 Series (E90) 2005–2012, 3 Series (E91) 2005–2012, 3 Series (E92) 2006–2013, 3 Series (E93) 2007–2013, X1 (E84) 2009–2015, Z4 (E89) 2009–2016
Reading and clearing it
Fault code 63F9 is a BMW code, stored in the car's electronic power steering, 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 electronic power steering is on: X5 (E70), X6 (E71), X6 (E72), 1 Series (E81), 1 Series (E82), X1 (E84), Z4 (E85), Z4 (E86), 1 Series (E87), 1 Series (E88), Z4 (E89), 3 Series (E90), 3 Series (E91), 3 Series (E92), 3 Series (E93)
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