On my 2022 DS4 PHEV, there is some sort of ECU / power electronics module that sits on top of the main under bonnet 12V battery. When I was checking battery voltages, I noticed that it easily slides forwards and back - only about 1-2cm - but other than that seems secure.
Here’s a video showing the movement. Is that normal, or is there some fastener that is missing?
@Andrew_PL Many thanks for your photo - on mine the metal frame that secures the module to the battery is a bit distorted compared to your photo. It feels secure apart from that bit of fwd / back movement - so may not do anything about it immediately.