How to read a third-party inspection report without being sold to

Most inspection reports arrive with a headline number and a colour. That presentation is designed to be scannable, and it is the part worth ignoring first. Two cars can score identically while one needs a set of tyres and the other has a repaired chassis rail.

The report's value is in its individual findings and, just as importantly, in what it did not look at.

Start with what was not inspected

Every report has a scope, usually printed somewhere less prominent than the score. Read it before anything else, because it defines what the report is not evidence of.

• Was the car driven? A static inspection cannot assess the gearbox under load, clutch bite, or how the suspension behaves over a bad surface.
• Was it lifted? Without a ramp, the underside (sills, floor pan, exhaust, suspension mounting points, evidence of structural repair) was largely not seen.
• Was the engine cold at the start? Several faults only present on a cold start, and a car already warmed up when the inspector arrived has had that test taken away.
• Was diagnostic equipment connected? Stored and pending fault codes are cheap to read and tell you what the car has been complaining about, including faults recently cleared.

Sorting findings into three piles

Once you have the scope, go through the findings and put each one into one of three groups. This is the whole method, and it turns a list of complaints into a negotiating position.

Pile	What belongs in it	What to do
Consumables	Tyres, pads, discs, wipers, battery, fluids, bulbs	Price them. They are a discount, not a reason to walk
Deferred maintenance	Leaks, worn bushes, perished hoses, overdue belts	Price them, and read them as a pattern
Structural and safety	Chassis repair, corroded mounting points, airbag faults, alignment that will not hold	Different conversation entirely

The first pile is arithmetic. Get quotes, subtract from the price, move on. Every used car has some of this, and a seller who has priced accordingly is being reasonable.

The second pile is more interesting as evidence than as cost. One perished hose is age. Six deferred items across unrelated systems is a maintenance philosophy, and it tells you what the rest of the car has probably had.

The third pile is not a discount. It changes what the car is.

The language, translated

Report wording is often softened, either from politeness or from liability. Some phrases to read carefully:

• "Evidence of previous repair" means the inspector saw something and could not, or would not, characterise it. Ask where, and ask whether it is structural. This is the single most important follow-up question in most reports.
• "Advisory" means not a fault today, but it will be one. Ask for a timeframe.
• "Not accessible" is a real gap, not a pass. It means nobody knows.
• "Within tolerance" is worth a follow-up: ask where in the tolerance. Something at the far edge of acceptable is a different purchase from something in the middle.
• "Serviceable" means it works now. It says nothing about remaining life.

Whose inspector is it

The most important thing about an inspection is who chose the inspector and who is paying. An inspection arranged and paid for by the seller is not worthless, but it was commissioned by the person with an interest in the outcome, and it is worth reading in that light.

Arrange your own where you can. If you are given an existing report, check when it was done, because a report several months old describes a car that has been driven since, and treat it as a starting point for your own questions rather than as a conclusion.

Reading it against the history

An inspection report and a service history answer different questions, and each one is much stronger with the other beside it.

The report says what is worn now. The history says whether that wear is consistent with how the car has been treated. A car with a documented history and a clean report is a coherent story. A car with a clean report and no history is a snapshot with nothing behind it. The inspection can only tell you the car is fine today, and today is the one day the seller has prepared for.

The mismatches are where the useful information lives. Brake discs at the end of their life on a car whose history shows them replaced recently means either the history is wrong or the car has been driven hard. Either is worth knowing before you pay.

Common questions