Why a genuine service history matters
When you buy a used car in the UK, a reliable service record can reveal how well the vehicle has been maintained, which in turn affects its reliability, resale value and safety. A complete log also helps you verify the mileage and spot any periods when the car may have been neglected.
Ask the seller for original paperwork
Start by requesting the service book, invoices or electronic receipts. The original, bound service booklet is the most common evidence, but many garages now provide digital PDFs. Look for:
- Dealer or garage name and contact details
- Dates that match the car’s age
- Odometer readings that increase consistently
- Signatures or stamps from qualified technicians
Cross‑check with the MOT and tax records
The DVLA’s MOT history shows the mileage recorded at each test. Compare those figures with the entries in the service book. Any large gaps – for example, a jump of more than 10,000 mi between two services – should raise a question.
Use online service‑history checks
Several reputable providers can retrieve a vehicle’s recorded service data from participating garages. While they may not capture every independent repair, they can confirm whether the major entries in the booklet exist in an external database.
Spot common signs of a falsified log
Fake service books often contain:
- Repeated handwriting or printed text that looks identical on every page
- Missing stamps or signatures on older entries
- Inconsistent formatting – e.g., a mixture of UK and US date styles
- Pages that appear to have been torn out and replaced
What to do if you suspect tampering
Contact the garage listed on the entry and ask them to confirm the work. Most reputable workshops will verify a service if you give them the registration number and date. If the garage cannot confirm the job, treat the record with caution and consider negotiating the price or walking away.
Final checklist before you commit
- All service entries have a clear date, mileage and garage stamp.
- Mileage aligns with the DVLA MOT readings.
- Invoices match the work described in the service book.
- No large, unexplained mileage gaps.
- Any electronic records can be traced back to a legitimate garage email or portal.
By following these steps you reduce the risk of buying a car with a padded service history. You can also check the vehicle’s registration on motorpeek.com to see its MOT history and any recorded mileage anomalies.
Frequently asked questions
Can I rely solely on the service book when buying a used car?
The service book is a valuable clue but it should not be the only evidence. Cross‑reference it with the MOT mileage, any available invoices and, where possible, confirm entries with the garage that performed the work.
How can I verify a service entry that has no invoice?
Contact the garage named on the entry and provide the registration number and date of service. Reputable workshops keep records and can confirm whether the work was carried out, even if the original invoice is missing.
What does it mean if the MOT mileage and service book mileage don’t match?
A discrepancy may indicate a clerical error, but a large or repeated mismatch can be a sign of mileage tampering or omitted services. Investigate the cause before finalising the purchase.