Open the instrument cluster

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Pull off the adjustment button of the clock and trip mileage counter.
Remove the sheetmetal springs from the left and right fixing lugs.
Release the electronic unit on both sides using a screwdriver (do not tilt).

Fig 1: Releasing Electronic Unit On Both Sides
Courtesy of PORSCHE OF NORTH AMERICA, INC.
Unclip the centre of the electronic unit at the bottom. Hold the released green guide rails outwards with a screwdriver. Take the electronic unit upwards out of the display unit evenly, pulling alternate sides.
Undo the clips (new version) in the indicator light housing and carefully take the display unit out of the front frame.