Why does a car's service history matter?

Service history matters because it is the nearest thing a car has to a medical record. It shows when the oil was changed, when major items like a cambelt were done and whether problems were dealt with promptly. For a buyer it reduces guesswork, and for an owner it helps plan what is next.

Below we explain what counts as a service history, what to do when there are gaps, and how to keep your own records tidy. Automaster is a garage at Longcombe Cross near Totnes, and we can update records after a service.

What counts as a full service history?

A full service history usually means a service book stamped at each service, backed by invoices that show what was replaced. Many modern cars have digital records instead of, or alongside, a paper book. Both are acceptable if they are complete and traceable to the car.

The most useful evidence lists the date, the mileage and the work done. Receipts for parts such as a cambelt or clutch are especially valuable because they show when major jobs were completed.

• Stamped service book or digital record
• Itemised invoices showing work done
• Mileage recorded at each visit
• MOT certificates and advisories
• Receipts for major parts such as a cambelt

Does service history affect what a car is worth?

It usually does. Two similar cars with different histories are not equally appealing, and buyers tend to pay more attention to documented care. The effect varies with the model and market, so it is hard to put a general figure on it.

What matters most is consistency. A car with regular servicing at sensible intervals tells a better story than one with a few stamps and long gaps. A record from garages of different kinds is perfectly fine if the work is documented.

What if my car has missing service stamps or lost books?

Do not panic, but do not invent anything either. Start by collecting what you have: old invoices, MOT history from the government online service, and emails from garages. Past garages may be able to confirm work they carried out if you ask.

If the record cannot be rebuilt, a fresh service now establishes a starting point. A garage can inspect the car, replace the routine items and record the date and mileage. It does not erase the gap, but it gives the next owner something solid.

Do I need to service at a main dealer to keep my history valid?

No. You are free to use an independent garage, provided the service follows the manufacturer's schedule and uses suitable parts and the correct oil. The key is to keep an itemised invoice and have the book or digital record updated.

If your car is still under a manufacturer's cover, read the terms or ask the provider what they require. Rules differ, so check your handbook and paperwork.

How do I keep a service history in good order?

Keep every invoice together in one folder in the glovebox or at home, and photograph them as a backup. Check that each one shows the registration, date, mileage and a clear description of the work.

Book the next service as the previous one ends, and note mileage-based items like a cambelt in your calendar. A tidy record makes selling easier and helps any garage understand the car quickly.