The guibo (pronounced Joo bow), is a flexible disc used in place of a u-joint.
They can introduce both vibration and odd sounds like tick tick tick.
Do you have a scanner that can read BMW codes and the transmission details real-time? Eg solenoid pressures (usually as mA)?
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2011 E70 • N55 (me)
2012 E70 • N63 (wife)
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