My dashboard cracked after a summer on the coast. Can I claim for it?

Not as ordinary ageing, and we will tell you that before you spend anything on a report. It changes if the vehicle was standing damaged and open to the sun as part of a claim — then the deterioration during that period is part of the picture and is assessed together with the original damage.

My car has been waiting outdoors for six weeks for an inspection. Is that a problem?

It can be, and the size of the problem depends on whether anything is open. Cover any broken glazing, ask about covered storage, and make sure photographs exist from the day the vehicle arrived. Those photographs are what allows later deterioration to be separated from the original damage.

Is heat damage the same as fire damage?

No, and they are assessed completely differently. Fire involves soot, radiated heat at a different order of magnitude and effects on the structure and on safety components, and it is covered as its own subject. Sun and ambient heat act slowly, on surfaces and materials, and over weeks rather than minutes.

How do you tell sun degradation from damage caused by the accident?

Mainly by pattern and edge. Ultraviolet effects grade smoothly, follow the exposed surfaces and appear on both sides of a panel line. Event damage has a direction, an edge and a limit. Where a photograph from an earlier date exists, the question is usually settled in one comparison.

What do you not assess here?

We do not assess the general condition of an old vehicle as if it were a claim, and we do not certify that a car is roadworthy after standing. We also do not decide what a policy covers. What we establish is the technical state, what the standing period changed, and what can still be documented.

Heat and sun damage to a parked car in Croatia

On the coast in August a closed car standing in the open reaches interior temperatures that no material in it was designed for over a long period. Most of the time that is simply summer. Twice it is not: when the heat acts on a vehicle that is already damaged, and when someone tries to settle a claim months later on a car the sun has been working on ever since.

Two different questions, and only one of them is a claim

People ask about heat in two completely different situations, and mixing them is the reason the subject has a bad reputation.

The first is ordinary ageing. A dashboard that has cracked over eight summers, paint that has lost depth on the roof and bonnet, plastic trim that has gone chalky, rubber seals that have hardened. This is wear. It is real, it costs money, and it is not an insured event. We say that plainly rather than leaving it to be discovered later.

The second is heat acting on a vehicle that is already in a claim. A car damaged in June and inspected in September has spent the summer on the coast, often outdoors, often with a broken window, a missing trim panel or a taped-over opening. What the heat does in those weeks belongs to the claim, because it would not have happened if the vehicle had not been standing there damaged.

This page is not about fire. Soot, radiated heat from a burning vehicle and the reach of a fire through the structure are a separate subject with a separate method, and they are covered separately. Here the source is the sun, the temperature is far lower, and the effects appear over weeks rather than minutes.

What the sun actually does to a stationary vehicle

The effects are well known and they are also easy to overstate, so it is worth separating the ones that can be established from the ones that are assumed.

Cabin temperature and the plastics. A closed vehicle in direct sun runs far above ambient air temperature for hours at a time. Dashboards, upper door trims and the top surface of the rear parcel shelf take the most of it: the material loses plasticiser, becomes brittle and eventually cracks along its moulding lines. On an undamaged car this takes years. On a car with a broken window or a missing panel, moisture and dust get in as well, and the process is no longer only thermal.

Seals and adhesives. Door and glass seals harden and lose their shape. Bonded glass and bonded trim rely on adhesives with a working temperature range; repeated cycling at the top of that range shows up later as a rattle, a leak or a strip that lifts. This is the effect most often missed, because nothing is visible at the time.

Paint and coatings. Ultraviolet exposure dulls the clear coat and, on horizontal surfaces, eventually degrades it. On a repaired vehicle there is a second question: fresh paint that has not fully hardened behaves differently from factory coating under the same exposure, which matters when a car is repaired in July and left standing.

Batteries and electronics. Heat shortens the life of a starter battery and stresses control units and connectors. On an electric or hybrid vehicle a high-voltage pack has its own limits and its own manufacturer instructions for extended standing in high temperature, and those instructions are not advisory.

Tyres. Standing for weeks in the heat on one spot, particularly at low pressure, produces flat spots and accelerates sidewall ageing. It is a small item on its own and a relevant one on a vehicle that stood for two months waiting for a decision.

The case that matters: a damaged vehicle waiting in the heat

This is where the subject stops being cosmetic. A vehicle that is waiting — for an inspection, for a decision, for a decision about towing it home — is deteriorating while it waits, and the deterioration is measurable.

An opening changes everything. A broken side window, a missing headlight, a bumper pulled away from the wing: each one lets in sun, rain and dust. Interiors that were intact when the vehicle was recovered are unusable eight weeks later, and the cost of that is far higher than the cost of the covering that was never fitted.

Covering is not a formality. Film taped around the perimeter of a broken window keeps out dust and most of the water for a while, and it costs almost nothing. It does not last a summer, and it is not a substitute for getting the vehicle under cover, but it is the difference between a claim about a window and a claim about a whole interior.

Storage in the open has a price. Yards on the coast are full in season and the cheap places are open ground. Where a vehicle stands for weeks, that choice is part of the outcome, and it is worth asking about covered storage before the decision is made by default.

Document the state at the start, not at the end. The photographs taken when the vehicle was recovered decide whether later deterioration can be attributed to the waiting period at all. Without them, everything found in September looks like it was there in June.

Damage or wear: how the line is drawn

The distinction is technical, and in practice it comes down to four questions asked in order.

Is there a route for the heat or the sun to reach the part? On an intact vehicle the answer for an interior component is limited. On a vehicle with an opening it is not, and that is often the whole difference.

Does the pattern match exposure or age? Ultraviolet degradation follows the sun: it is worst on horizontal and south-facing surfaces and it grades smoothly. Damage from an event does not grade — it has an edge, a direction and a limit.

Is there a documented before? A photograph from the recovery, a note in the inspection record, an earlier valuation. Anything that shows the state at a known date turns the question from an opinion into a comparison.

How long did the vehicle stand, where and in what condition? Dates, place and whether it was covered. This is the part that gets reconstructed badly months afterwards and takes one sentence to record at the time.

Where the answer is genuinely mixed, we say so. A dashboard that was already ageing and then cracked through after eight weeks in the sun with the windscreen missing is not entirely one thing or the other, and a report that claims otherwise does not survive the first serious question.

Frequently asked questions

My dashboard cracked after a summer on the coast. Can I claim for it?: Not as ordinary ageing, and we will tell you that before you spend anything on a report. It changes if the vehicle was standing damaged and open to the sun as part of a claim — then the deterioration during that period is part of the picture and is assessed together with the original damage.
My car has been waiting outdoors for six weeks for an inspection. Is that a problem?: It can be, and the size of the problem depends on whether anything is open. Cover any broken glazing, ask about covered storage, and make sure photographs exist from the day the vehicle arrived. Those photographs are what allows later deterioration to be separated from the original damage.
Is heat damage the same as fire damage?: No, and they are assessed completely differently. Fire involves soot, radiated heat at a different order of magnitude and effects on the structure and on safety components, and it is covered as its own subject. Sun and ambient heat act slowly, on surfaces and materials, and over weeks rather than minutes.
How do you tell sun degradation from damage caused by the accident?: Mainly by pattern and edge. Ultraviolet effects grade smoothly, follow the exposed surfaces and appear on both sides of a panel line. Event damage has a direction, an edge and a limit. Where a photograph from an earlier date exists, the question is usually settled in one comparison.
What do you not assess here?: We do not assess the general condition of an old vehicle as if it were a claim, and we do not certify that a car is roadworthy after standing. We also do not decide what a policy covers. What we establish is the technical state, what the standing period changed, and what can still be documented.