Some 2011 Audi A4, A5, S4 and S5 vehicles equipped with a manual transmission may exhibit a cracking noise when depressing the clutch pedal.
Replace the mounting pin for the clutch master cylinder input rod with P/N WHT 001 666, following repair manual instructions.
Apply 1g of grease G 052 128A1 on the eye of the master cylinder from and inside the diameter. Also, fully grease the pin WHT 001 666 in the contact area between the pin and the master cylinder. Make sure that the pin is correctly attached and recheck operation. Tip: The pin does not have to be secured by an expanding rivet, even if a rivet was incorrectly fitted by the factory.
The clutch master cylinder is not the cause of the complaint, so do not replace the master cylinder simply to correct this condition.