2018 AUDI Q7 PRESTIGE VIN WA1VAAF78JD017985

The Audi Q7 Prestige described here left the factory in 2018. Under the bonnet is a 3.0-litre petrol engine producing 333 hp. Power reaches the wheels through an automatic gearbox. The specification is taken from the source data.

The recorded mileage is 112,703 miles. The instruments count in miles; the same distance in kilometres is about 1.6 times the figure. Services and inspections note the distance covered, so a car with an ordinary past builds up a trail of figures that climb year after year. Title paperwork often notes the mileage at each change of owner, which makes it a useful cross-check.

In the source data, the main issue is front-end damage. Two cars with the same damage label can be very different: one needs a few new parts, the other major work. Whatever the cause, a diagnostic scan of the car’s electronics shows fault codes that a visual check misses.

When checked, the car could be started and driven under its own power. A key was present. Condition notes are a snapshot: the car may have been worked on, stripped of parts or left standing since.

A car’s history answers three questions: who kept it, how it was looked after and what went wrong along the way. No single office holds the whole story of a car: registries, workshops, insurance companies and lenders each keep their own part. From the outside, a car with a repaired accident and a car without one can look identical.

A cold start, the colour of the exhaust smoke and any oil leaks tell a mechanic a good deal about how an engine has been treated. On a petrol engine, spark plugs, ignition coils and the cooling system are the routine items a service history should cover. Automatic transmissions, CVTs included, are expensive to repair, so the test drive should include pulling away from a standstill and a stretch at motorway speed. Drive to all four wheels means more to maintain: differentials and couplings have oil of their own, which some manufacturers want changed at set intervals.

The ninth character of the VIN is a check digit calculated from the other sixteen, so a mistyped or invented number does not add up. This Audi Q7 Prestige has the VIN WA1VAAF78JD017985. A VIN that differs between the documents and the car, or shows signs of tampering, is reason enough to walk away.

A VIN report gathers what different sources know about a car, such as the number of owners, mileage readings, damage and any branded title. The absence of an entry is not proof that nothing happened; it may only mean that nobody wrote it down. A VIN check and a physical inspection answer different questions: the first says what happened to the car, the second what condition it is in now. Look up the history of VIN WA1VAAF78JD017985 first, and let what it shows guide the inspection.