I've trawled the web for a definitive answer to this but am struggling.
I have a 2006 A3 TDI Sportback (5dr).
One of the bulbs / LEDs in the high / third brake light has gone, not uncommon.
I've taken the boot trim out and managed to get the brake light unit out and unplugged it.
Now lies the problem. Every other forum/post I've read says it's as simple as then replacing the bulbs / LEDs.
However, mine looks like a sealed unit and I'm a bit reluctant to start trying to open it up to get to the bulbs, in fear of breaking it!
Am I going mad and is it easy to get open, or is it in fact sealed?