I have just discovered by accident that there is a five year lifespan for a Maxi Cosi Cabriofix, as hidden away in the small print of the safety section of their instruction leaflet.
This is presumably down to damage or degradation of the component materials.
As a result we are hastily having to buy a replacement car seat for DD as a matter of urgency.
I would imagine that this might also have insurance implications in addition to the obvious safety ones.
Now you might all have been aware of this but I wasn't and so I just wanted to let people know in case it was relevant to someone out there.