2001 MERCEDES-BENZ ML 320 VIN 4JGAB54E91A288948

The Mercedes-Benz ML 320 described here left the factory in 2001. The engine is a 3.2-litre petrol unit with six cylinders. There is an automatic gearbox, with all-wheel drive.

The record gives the mileage as 199,474 miles. The figure is in miles and needs converting before it is compared with kilometres: one mile is about 1.6 km. 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.

Primary damage in the record: mechanical. 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.

A key was present. Condition notes are a snapshot: the car may have been worked on, stripped of parts or left standing since.

Behind every used car lies a string of events: who owned it and for how long, what the inspections found and which repairs and claims were made. A car’s paperwork is scattered: the registry knows about owners, the workshop about repairs and the insurance company about claims. What a car has been through is seldom visible at first glance, and a respray can make even a badly damaged car look sound.

For the engine, the service history matters most: oil changes, filters and the timing belt or chain are the entries to look for. Many modern petrol engines are turbocharged and direct-injected; where they are, the turbocharger and injectors belong on a specialist’s checklist. 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 car’s identification number is 4JGAB54E91A288948. A VIN that differs between the documents and the car, or shows signs of tampering, is reason enough to walk away.

Depending on what is on file, a VIN report may include past registrations, mileage readings, damage entries, branded titles and theft checks. The absence of an entry is not proof that nothing happened; it may only mean that nobody wrote it down. The past is on file; the car’s condition today is a job for a mechanic, who can check the structure, underbody, electrics and any repairs on a lift. A history check on VIN 4JGAB54E91A288948 is the place to start.