A8L Quattro Sedan W12-6.0L (BSB) (2005)
On vehicles with chassis number from 4E_4N015369, apply a 3mm wide bead with silicon D 176 001 A3 on the cover of the regulator motor, as shown
in point 1 of the illustration below.
Fit the regulator motor and make sure that the cables are not too tight. Refit the carrier plate and tighten the regulator motor.