EQUIPMENT AND SPECIFICATION

How to read a factory build sheet before buying a car

Find My Service History team · Published · About 4 minutes

A build sheet can help answer what was recorded when a vehicle was built. It should be read as historical specification evidence, alongside an inspection of what is fitted and working now.

Start with the vehicle identity and source

Confirm that the record relates to the exact vehicle. Note the source and when it was retrieved. A brochure for the model range and a manufacturer-sourced build record are not interchangeable evidence.

Look for the fields actually returned. A report may include equipment codes and descriptions without original retail prices or every feature you expected. Missing detail should stay marked missing.

Translate codes carefully

Use the description supplied with the code or an appropriate manufacturer source. Do not guess a feature from a similar-looking code on another brand or model year. Ask the seller or a suitable specialist where an important description is unclear.

Separate standard equipment, options and broad packages only where the evidence supports that distinction. A generic trim name can leave choices unresolved.

Compare three versions of the specification

  • The advert: what the seller claims is fitted.
  • The build record: original equipment recorded by the source.
  • The vehicle today: what is present and can be demonstrated.

Use differences as questions

A previous owner may have changed equipment. Ask for installation documents and inspect the feature instead of treating a difference as automatic proof of a misleading advert.

Original fitment does not establish current operation. A build sheet is also not a service history, fault diagnosis or finance check. Our proposed combined report keeps those sources distinct; paid factory reports are not currently available to order.

YOUR NEXT STEP

Start with the vehicle, not a guess.

Look at the free MOT and recorded-mileage history, then keep your service evidence together in My Garage.

Free MOT and recorded-mileage check. No account needed. Paid manufacturer reports are not yet on sale.