Buying
Full service history explained — what FSH means and why it matters
Full service history (FSH) means a car's servicing is recorded from new. Learn what counts, how to check it, and when a missing cambelt change matters.
Full service history (FSH) means a car has been serviced at the intervals the manufacturer sets, and each service is recorded with a stamp, an invoice or a digital entry. It matters because it is the best evidence you have of how the car was looked after. A car with FSH is usually a safer buy than a similar car with gaps, but you must check the records. "FSH" in an advert proves nothing on its own.
What does full service history mean?
There is no legal definition of FSH. Sellers use it to say the car has had regular servicing, from new or close to it. In practice, good proof looks like this:
- A service book with a stamp for each service, dated and with the mileage.
- Invoices or receipts that match the stamps and list the work done.
- A digital record held by the manufacturer or a main dealer.
- Records that show servicing on time, by mileage or by age, whichever came first.
Full does not always mean main dealer. An independent garage can service a car and keep your warranty valid, if it uses the right parts and follows the manufacturer schedule. A main dealer stamp can look better, but a well-documented independent history is still useful.
What is part service history?
Part service history means some services are missing or unproven. This is common on older cars and not always a problem. Look at what is missing and why.
| Record | What it tells you | What to do |
|---|---|---|
| Full, on time | Regular care, low surprise risk | Still inspect and test drive |
| Full, but late services | Owner delayed work | Ask what was done at the late service |
| Part history, recent gaps | Unknown recent care | Negotiate, or ask for a garage inspection |
| Part history, early gaps only | Possibly a warranty-era mix of garages | Check later records and the MOT history |
| No history | Nothing to verify | Treat as unproven and price accordingly |
How much value does service history add?
Service history adds value, but there is no fixed figure. The effect depends on the car's age, make and price. It tends to matter most on:
- Premium and performance cars, where servicing is expensive and buyers expect proof.
- Cars with known costly parts, such as timing belts, turbochargers or automatic gearboxes.
- Diesel cars with particulate filters, which need the right kind of use and care.
On a cheap, older runabout, a tidy set of MOT passes can matter as much as a full book. Use our car valuation guide to compare prices. Then treat a missing history as a reason to pay less, not as a small detail. A missing history also makes the car harder to sell later.
How do I check a digital service history?
Many manufacturers now keep digital service records that a main dealer can look up. Paper books are being replaced by these records, so a newer car may have no stamps at all and still have a full history.
- Ask the seller how the car was serviced and which garages did the work.
- Ask for invoices and any app, email or portal records the seller can show.
- Contact a main dealer for the make. Give them the VIN (the 17-character chassis number on the V5C and the car). Ask whether they can see the service record.
- Check the dates and mileage against the MOT history. They should rise in a sensible pattern.
- Call the garage that is named on an invoice if you want to confirm it. Use a phone number you found yourself, not one on the paper.
Dealers may only be able to see work done within their own network, and their policies differ. A dealer lookup shows what they hold. It does not prove work done elsewhere. Independent garage work usually sits on invoices.
Use the MOT history as a cross-check
The GOV.UK MOT history service shows each test, the mileage and the advisories. If the service book says 60,000 miles in March but the MOT shows 80,000 miles that month, something is wrong. Read how to check MOT history. To look for mileage problems, see our guide to spotting a clocked car.
When should a cambelt be changed?
A cambelt (timing belt) links the crankshaft to the camshaft. If it snaps on many engines, the engine can suffer severe damage. The repair can cost more than the car is worth.
Intervals vary by model, commonly 60,000–100,000 miles or 4–10 years. Check the manufacturer schedule for the exact car. Some engines use a timing chain instead of a belt. A chain has no fixed change interval, but it can still wear.
Check these points when you view:
- Find the cambelt entry in the history. It should show the date, the mileage and ideally the parts used (belt, tensioner and often the water pump).
- Compare the car's age and mileage with the schedule. A car can be due by age even with low mileage.
- Look for a sticker under the bonnet or on the engine. Some garages leave one with the date and mileage.
- If there is no proof, ask the seller to get a quote.
A missing cambelt change on a due car is a big negotiating point. Get a written quote from a garage and ask for that amount off the price. Or ask the seller to complete the work before you buy.
What should I check besides the service book?
A service history is one check among several. It does not tell you about accident damage, finance or mileage.
- Match the VIN and registration on the V5C logbook.
- Run a paid vehicle history check for finance and write-off markers. See HPI check vs MOT history.
- Work through the full used car buying checklist.
- Test drive the car and listen for problems. See how to test drive a used car.
On Motofly, every listing shows DVLA tax status and the full DVSA MOT history. That gives you a good first cross-check before you ask for the service records. You can browse cars on Motofly and start there.
Warning signs in service records
- Stamps in the same pen and the same style, with no matching invoices.
- A service book with no mileage entries.
- Mileage that goes down or stalls between entries.
- A seller who says the book is lost but "it was always done".
- A new-looking book on an old car.
If you see these, ask direct questions. If the answers are weak, walk away.
Frequently asked questions
What does FSH mean on a used car?
FSH stands for full service history. It means the car has a record of servicing at the manufacturer's intervals, as stamps, invoices or digital entries. There is no legal definition, so always ask to see the proof.
Is a car with no service history worth buying?
It can be, if the price reflects the risk and the car passes a thorough inspection. Check the MOT history for steady mileage and few repeat advisories. Budget for a full service and for a cambelt change if one may be due.
Does a main dealer service history matter more than an independent one?
Not necessarily. A main dealer record is easier to verify, and some buyers prefer it. A good independent garage using correct parts, with invoices that match the car, is still strong evidence.
Can I still claim on a warranty without a full service history?
It depends on the warranty terms. Many used car warranties require servicing to the schedule. Read the terms before you buy and ask what evidence the provider needs.
How do I know if a cambelt has been changed?
Look for a dated invoice, a service book entry or a sticker under the bonnet. Compare the date and mileage with the manufacturer schedule. If there is no proof, assume it is due and ask for a discount.