When driving on an uneven roadway and with the convertible top open, a rattling noise can be heard from the area around the inner guide rail.
The end fitting of the inner guide rail strikes the convertible top mechanism when the convertible top is open.
Open the convertible top half way. Apply felt in the marked area from the bottom of the lever, through the upper section, all the way to the lower end on the other side. See Fig. 1.