Service history in numbers

What thousands of UK checks tell us about manufacturer service records.

Our first data release: how often a check finds manufacturer history, how that changes with a car's age and fuel, and how much history a covered car carries.

What the data shows:

  • 7 in 10 vehicles return manufacturer records
  • Cars aged 4 to 10 return history most often
  • 4 dealer visits on a typical covered car
  • Nearly 9 in 10 have history from new
  • Every fuel type returns about 7 in 10

The headline figures

From thousands of UK vehicles checked through ServiceStamp, 29 December 2025 to 27 October 2026. Covered means a dealer record is on file through our supplier, not that a car was or was not serviced.

7 in 10

vehicles checked return manufacturer service records

70.5% of the unique vehicles checked across the whole period, and about 7 in 10 on both sides of the July 2026 supplier change.

77%

of cars aged 4 to 10 years return history

The newest cars sit at 67%. Past 15 years, coverage falls below 4 in 10.

4

dealer visits on a typical covered car

A median 9.3 months and about 6,600 miles apart, in line with annual servicing.

87%

of covered cars have a dealer record within 18 months of first registration

The history usually starts at the beginning of a car's life. It does not always continue.

How often a check finds manufacturer history

Of the thousands of UK vehicles checked through ServiceStamp from 29 December 2025 to 27 October 2026, about 7 in 10 came back with manufacturer service records: 70.5% of unique vehicles.

A vehicle counts as covered when its check returned at least one service record from the manufacturer's systems. That is the same rule the report, the trade API and our own dashboard use, so the figure reconciles to what customers see. The remaining 3 in 10 came back with no dealer record on file, which is not the same as no service history: work at independent garages and fast-fit chains never reaches the manufacturer's system, and some manufacturer feeds keep records for a limited number of years.

The sample is the vehicles ServiceStamp customers chose to check, not the UK car parc. Buyers often check a car they already have doubts about, and trade buyers check younger stock, so the figures describe record availability for cars being bought and sold, not the servicing habits of the nation.

Coverage by vehicle age

Coverage rises through a car's first decade, then falls as manufacturer systems stop returning older records.

Age at the checkReturned history
0 to 3 years67.1%
4 to 6 years76.4%
7 to 10 years77.3%
11 to 15 years59.1%
16 years and over37.1%
All ages70.5%

Age is the year of the check minus the model year. Vehicles with no recorded model year are left out of the bands and included in the total.

Coverage by fuel type and buyer

Fuel type makes little difference. Trade buyers see a little more history, because the stock they check is younger and skews to the best-covered makes.

GroupReturned history
Petrol69.6%
Diesel72.5%
Hybrid71.3%
Electric73.7%
Trade buyers75.2%
Private buyers70.0%

Fuel type as recorded against the registration; vehicles with no recorded fuel type are left out of the fuel rows. Trade buyers check through a trade account; private buyers are everyone else.

What age and fuel tell us

Cars aged 4 to 10 return history most often, about 77%. The newest cars, 0 to 3 years old, sit lower at 67%. Past 10 years coverage falls to 59%, and past 15 years it falls below 4 in 10.

The fall for older cars is mostly a matter of how long each manufacturer's system keeps records. Some feeds hold roughly ten years of history, others return records for the life of the car, and that difference shows up as soon as the sample is split by make. We will publish the make-by-make picture in a later release, once each make's sample is large enough for a reliable figure.

Fuel type makes little difference: petrol, diesel, hybrid and electric cars all return history at about 7 in 10. One pattern hides inside the hybrid figure. For a few makes the records that reach us come from a hybrid service programme rather than general servicing, so their hybrids return history and their petrol cars rarely do. That will come out with the make-by-make figures.

How much history a covered car has

Nine measures of the records behind the covered vehicles. The period says which records each one uses: the whole period, or the current supplier period for anything in miles or about record detail.

MeasureFigurePeriod
Dealer visits per covered carMedian 4; the top tenth show 11 or moreWhole period
Time between visitsMedian 9.3 monthsWhole period
Dealer record within 18 months of first registration86.9%Whole period
Span from first to last recordMedian 3.4 yearsWhole period
Miles between visitsMedian 6,559 milesSince 15 July 2026
Mileage at the last recordMedian 32,479 milesSince 15 July 2026
Annual mileage up to the last recordMedian 7,645 miles a yearSince 15 July 2026
Records that list the work done80.9%Since 15 July 2026
Records that name the garage70.8%Since 15 July 2026

Mile and record-detail figures use the current period's records only: earlier records carry no mileage unit and less detail. Kilometre readings are converted to miles and exact duplicate records are removed.

How recently the car last saw a dealer

Time from the last dealer record to the check, for every covered vehicle. The four shares add up to the whole.

Last dealer recordShare of covered vehicles
Within the year before the check31.2%
1 to 2 years before the check17.0%
2 to 3 years before the check11.2%
More than 3 years before the check40.6%

A gap is not an unserviced car: work at independent garages never reaches the manufacturer's system, and some feeds keep records for a limited number of years.

Depth, recency and mileage

A typical covered car shows 4 dealer visits, and the top tenth show 11 or more. Visits are a median 9.3 months and about 6,600 miles apart, in line with annual servicing.

Nearly 9 in 10 covered vehicles have a dealer record within 18 months of first registration, so the history usually starts at the beginning of a car's life. It does not always continue: fewer than 1 in 3 covered vehicles had a dealer record in the year before the check, and 4 in 10 had none in the previous three years. A gap is not the same as an unserviced car. Many owners move to independent garages as a car ages, and that work never reaches the manufacturer's system.

The median annual mileage up to the last dealer record is about 7,600 miles. The figure describes the period the dealer records cover, not the car's mileage today.

What these numbers do and do not mean

Our customers' cars, not the UK parc

The figures describe the vehicles ServiceStamp customers chose to check from 29 December 2025 to 27 October 2026: cars being bought and sold, with trade buyers checking younger stock.

Covered means a record is on file

At least one record exists in the manufacturer's systems through our data supplier. The report, the trade API and our dashboard use the same rule.

A gap is not an unserviced car

No dealer record on file is all a gap means. Work at independent garages, fast-fit chains and DIY servicing never reaches the feed.

Never the car or its owner

Where coverage is low for a type of car, the reasons are data-sharing arrangements, dealer system adoption, retention windows and vehicle age.

Method

How the figures were produced, so they can be checked and repeated. Every figure carries a sample size and a confidence interval, available on request.

Unit

One unique vehicle, identified by VIN, counted on its latest definitive result. Repeat purchases, re-runs and the two legs of a Full Vehicle Check count once. The set is a segment of the checks ServiceStamp has run: those with a definitive answer in the period.

Periods

Checks completed from 29 December 2025 to 27 October 2026. Coverage was about 7 in 10 mile.

Covered

At least one manufacturer service record returned. The rate is covered vehicles divided by covered plus empty. Registrations that could not be matched to a vehicle sit outside the denominator; trade checks refunded for returning no records stay in.

Intervals and thresholds

Every figure carries a Wilson 95% interval, and two groups differ only when their intervals do not overlap. A group appears only with at least 30 vehicles, and a bare percentage only with at least 200. Sample sizes and intervals are available to journalists on request.

Records

Depth figures use the dealer records of the covered vehicles after exact duplicates were removed, kilometre readings converted to miles and the 0.1% of dates that could not be read set aside. Nearly every record carries a mileage.

Privacy

The analysis ran read-only against aggregated results. No registration, VIN, name, order or report was extracted.

Questions about the data

Does "no record" mean the car was never serviced?

No. It means no record is on file in the manufacturer's systems through our supplier. Work at independent garages, fast-fit chains and DIY servicing is not in the feed, and some manufacturer feeds keep records for a limited number of years. Every ServiceStamp report also includes the MOT history, which gives a mileage trail whatever the service record shows.

Can I get the figures by manufacturer?

We hold them, and we will publish them once each make's sample is large enough for a reliable figure and we have finished reviewing the results with our data supplier. Journalists and partners can ask for a briefing in the meantime.

Can I quote these numbers?

Yes, with attribution to ServiceStamp and a link to this page. Please keep the period with the figure, and describe a gap as "no dealer record on file" rather than "not serviced".

Need a cut of the data or a quote?

We can split the figures by age, fuel type or customer type, and the founder is available for comment. Quote any figure with attribution to ServiceStamp and a link to this page.

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