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Now it's time for modifying the display head.
Work the display box out of the frame, it comes out from the rear and is rather fussy.
Remove the two torx screws and separate the display head box.
Remove the two hex standoffs and the circuit board.
Unplug the cable from the board, and use a pair of channel locks to compress the grommet and remove the cable.
Drill a new 5/8" hole in the back of the box (you will see my previous 1/2" attempt, that one is too small) for the display cable.
Separate the LCD from the pc board and use the pc board as a template to trace a piece of plexiglas, aluminum, whatever you got that is stiff enough to substitute for the original PC board. [1] Put the LCD back on the PC board and place it in an anti-static bag for posterity.
Assemble the Parrot LCD onto the display cable connector. You will notice that it fits perfectly behind the display box's LCD window. Now mark for a square hole, to clear the back of the Parrot display bracket, in your board substitute, and cut it out. Assemble the Parrot LCD and the substitute board back in the display head using the two stand offs. [see first post, picture 3]
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The OM 642/722.9 powered family
Still going strong
2014 ML350 Bluetec (wife's DD)
2013 E350 Bluetec (my DD)
both my kids cars went to junkyard in 2023
2008 ML320 CDI (Older son’s DD) fatal transmission failure, water soaked/fried rear SAM, numerous other issues, just too far gone to save (165k miles)
2008 E320 Bluetec (Younger son's DD) injector failed open and diluted oil with diesel, spun main bearings (240k miles)
1998 E300DT sold to TimFreeh
1987 300TD sold to vstech
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