2018 BMW X1 XDRIVE28I VIN WBXHT3C36J5L30928

The BMW X1 XDRIVE28I described here left the factory in 2018. Power comes from a 2.0-litre petrol engine with four cylinders. The gearbox is automatic. The specification is taken from the source data and has not been checked against other documents.

The recorded mileage is 76,699 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. Service invoices and inspection reports each carry a mileage figure, and lined up in order they show whether the clock tells the truth.

When the car was recorded, it showed frame damage. A damage type says what kind of damage the car had, not how serious it was or whether it has been repaired since. A lift and a diagnostic check show what photos cannot: bent brackets behind a panel, chafed wiring or deployed airbags.

Without a key, a modern car needs a replacement coded to its immobiliser before it can even be started. A condition note describes the car at one moment; months of standing or later work on the car can change the picture in either direction.

The record shows a salvage title. A title like this is issued when repair was judged uneconomical or unsafe. A branded title follows the car through every change of owner, so it remains part of its history.

Every car builds up a history from the day it is first registered: owners come and go, inspections are passed or failed, and repairs are paid for. Pieces of a car’s history sit with registries, dealers, workshops and insurance companies, and none of them sees the whole picture. From the outside, a car with a repaired accident and a car without one can look identical.

For the engine, the service history matters most: oil changes, filters and the timing belt or chain are the entries to look for. On a petrol engine, a rough idle, misfires or a warning light on the dashboard need looking into. The automatic gearbox should respond smoothly and without delay; jerks, slipping or hesitation on a test drive need investigating. 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.

A VIN never contains the letters I, O or Q, which could be mistaken for digits; its 17 characters identify the maker, the model and the individual car. The VIN on file for this car is WBXHT3C36J5L30928.

A VIN report shows what has been logged: earlier registrations, odometer figures, damage entries, branded titles and theft checks, wherever such data exists. A repair paid for in cash at a small workshop leaves no trace in any database, so no report can list it. A history report says nothing about the car’s present condition: the frame, corrosion, electrics and the quality of any repair are judged on a lift by a mechanic. The next step is to look up the history behind VIN WBXHT3C36J5L30928.