TO #38
Lift the cover of the waterproof casing.
Unlock the two latches of the dust filter, turn the filter slightly to the left and remove it.
Hint: cars without a dust filter are not as easy to retrofit as one would like. Since you will have to reinstall it from the battery under the back seat - due to the new thick wires, this is not so easy to do.
(Text provided by the online resource: «AudiManual»)
