Nav Screen Gear Replacement
The navigation units in Aston Martins, especially the older Volvo-based units, are a sore spot for many an owner. As if the functionality (or lack thereof) wasn’t frustrating enough, the screen units themselves can have problems opening and closing. This is due to the gears that open and close the screen, and it’s a very common problem. Luckily for us, Aston is aware of the problem and offers a Repair Kit to fix the issue.
DISCLAIMER: As always, follow all safety protocols. Don't undertake this task if you aren't comfortable with it and fully understand it. You are ultimately responsible for anything you do. Neither Redpants, LLC or myself is responsible or liable for anything that may occur.
Updated Nav Screen Gears
Needle-nose pliers (maybe)
About an hour
Remove the ski slope panel (the one covering and surrounding the navigation screen). Here’s a video showing how to do it. Skip to the 4:15 mark.
Use the screwdriver to remove the four screws holding the nav screen unit in place. Then disconnect the wires plugged into the unit and pull the unit out of the car.
Remove the screw that attached the plastic cover to the nav screen unit, then use a small screwdriver to release the locking tab and remove the plastic cover (red square in the pic below).
Loosen or remove the two screws to loosen the bottom cover (circled in red in the pic below). You do not need to remove the cover - just loosen it so the bottom bracket can be removed.
Remove the two screws from the bottom bracket (circled in red in the pic below), then peel away the foam pad to uncover the third screw and remove that screw as well (shown with the red square). Remove the bottom bracket from the unit.
There is a screw holding the metal cover over the gears that is located behind the cover, back behind the motor. Loosen the screw. You do not need to remove it - just loosen it so the cover can be removed once the other screws are out (next step).
Remove the four screws holding the metal cover over the gears, then remove the cover from the unit.
Remove the large outermost gear by pulling it outward away from the unit. This gear is reused, so do not discard it.
Remove the large gear that is now accessible. This gear is not reused and can be discarded.
Carefully open the unit so the screen is open, then unhook the two ends of the spring to release it. If you struggle with this, use a pair of needle-nose pliers.
Remove the C-clip from the spring spindle. The C-clip is not reused and can be discarded.
Remove the washer (immediately under the C-clip that was just removed). The washer is not reused and can be discarded.
Remove the gear that is now accessible from under the spring spindle. The gear is not reused and can be discarded. Do NOT move or lose the drive pin underneath the gear.
Clean the area of any grime and buildup.
Apply light general purpose grease to the new gears from the Updated Nav Screen Gears package, then reassemble the gears in reverse using the new gears, washer, and C-clip, and continue Steps 12 through 1 in reverse for reassembly.