I have not pulled mine apart, so I'm not sure if the cause of the failure is pressure related or solder issues. The majority of the ones I know about have been bad solder issues.
Thing is you could send it off to VDO and they'll fix it with a warranty, so unless you really like to DIY, maybe that's the answer.
If you mess it up, your in trouble as you can't easily switch your dash with another. Tamper light will be on, all kinds of stuff. You'll be spending $$$$$ at the stealership, so hope that helps.