Hey there!

Does anyone know if all centre brake light units are universal between cars with and without roof spoilers?

Mine has been damaged by a heavy handed previous owner and is cracked. I did try searching here and google but can't find anything about the unit.

Thanks!

To the best of my knowledge, yes, they are universal.

I extracted one from a car with a spoiler at the breakers to keep as a spare for my car that has no spoiler (I need to take mine out to change two of the bulbs and I'm half expecting I'll break it in the process). They look to my eyes identical.

Yeah I thought so! The spoiler seems to go around the top of the tailgate and the roof instead. Time for some trial and error

You've probably seen this already, but the removal procedure is described here:

https://www.fiatforum.com/grande-punto-guides/294437-high-level-brake-light-bulb-replacement.html

It really takes some force to get it to come out.