Replacing the Convertible Roof Module (CRM)
This is a very easy job that requires only a couple of tools, but to finish it you'll need to go to an Aston Martin dealership. I did this job on a DB9 in the video, but the Vantage is the same process, though with some philips-head screws added in for the fender liner.
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.
T30 torx bit
About half an hour
Before you begin
You MUST go to an Aston Martin dealership to have the new CRM flashed after installing it. Your convertible roof will not work until that happens. The flash must be done with an AMDS, so only a dealership (with a couple rare exceptions) can perform it.
Put the car on jackstands or use a lift, then remove the left rear wheel (driver side in the US). Do NOT lift only the rear of the car to do this job - the car will roll forward!
Use the T30 torx bit and ratchet to remove all the fasteners from the fender liner. On the Vantage, you'll also need to use a Philips-head screwdriver to remove the screws (the DB9 only has torx bolts). Once all the fasteners are removed, you can start to remove the fender liner. As you're removing the fender liner, make sure you unclip the drain hose attached to the backside of the fender liner next to the coilover.
Use the T30 torx bit and ratchet to remove the four bolts holding the CRM in place. Now you can pull the CRM out of its place inside the chassis. You may need to use a tiny flat-head screwdriver to break the foam gasket seal.
Disconnect the two wiring connectors from the CRM. Be careful not to damage the connectors! These are part of the car's wiring harness and are very difficult and expensive to replace!
Plug in the new CRM. Make sure all of your electronics work and you have no warning messages. Your convertible roof should be the only thing that does not work at this point. If everything's okay, reinstall everything in reverse order.
Take the car to a dealership and have them flash your new CRM.