If you want to know what is covered by your Manufactures warranty or Dealer warranty read the documentation supplied at the time of sale. That should explain what is covered and what is not.
If you wanted to be able to claim under the Consumer Rights Act 2015, then as you have owned the caravan for more than 6 months you would have to seek evidence it was a fault that was present at the time of sale, but was hidden so that reasonable inspection would not have exposed it.
At 4 years in your ownership, and bearing in mind the pictures you have sent I would say that is a non starter, as the dealer could easily say the damage was cause after sale (normal wear and tear) and you would have to prove it wasn't. In any case the damage is not critical to the function or safety of the caravan.
Sadly sometimes we do have stand the cost of issues like this, and caravans do have a cost of maintenance and ownership.
Good reply. There have been numerous reports of crazing or cracks of front panels across all brands and it is a known issue with caravan circa 2016 I would think that the OP stands a very good chance of the work being done under warranty despite the age of the caravan. Even better if the caravan is on finance. I would recommend that the OP gets in touch with Which Legal Services for the correct legal advice if the dealer tries to fob him off as the OP should not be paying a single cent towards the repair.
Here is a copy of the report on our 2016 caravan and the report was dobe by an AWS technician and helped tip the scales in our favour;
Having inspected your caravan please see my report below. I have underlined the relevant parts.
Condition:
The caravan is in good condition throughout showing little wear and tear, with the caravan having had replacement front and rear panels fitted. This is evident from the uneven application of sealant to be seen at the edges of the awning rails along the edge of these panels, not something found on caravans from the factory.
Notable faults/Damage:
The front outer windows do not appear to have had the rubber seals refitted correctly causing the window catch to pinch the rubber and stop it from sealing completely. The upper window/skylight has been sealed back in using both white and black sealant with messy edges easily in view when sitting or standing inside the caravan. This window also has a small crack coming into view from behind some of the sealant at the bottom. The headlining appears to have been caught and damaged by something sharp.
There are cracks coming up from the NS bottom corner of the front panel, one around 4-5 inches the other over a foot long.
Conclusion:
With the caravan not being a year old yet all work should be completed under warranty which I believe the front and rear panels have been. However I feel that the quality of the work in replacing these may not be up to manufacturer’s finish or standards; I would also be concerned with the window seals not meeting the window properly and the cracked window/skylight.
The front panel cracking does not appear to be from an impact and looks to be more from the stresses applied it from the rest of the caravan, meaning this should be covered by warranty. A slight curvature noticeable where the front panel meets the side panel may be inducing more stress than it was designed for.