Conflicting Service Dates and Mileage: What to Investigate

Conflicting service dates or mileage readings need a comparison of the original evidence. This guide deals with documents that exist but disagree; a period with no documents belongs in the separate recovery checklist.

Describe the contradiction in one sentence

For example: one document records a lower reading at a later event, or two documents give different dates for what appears to be the same visit. Keep the original sources. If the problem is only that no invoice exists for a period, use the missing-evidence guide instead.

Check identity and date type first

Match the vehicle identifiers. Distinguish the workshop event date from invoice issue, document print or enquiry dates. A later printout can describe an earlier visit without creating a contradiction. Ask the source which field you are reading if the label is unclear.

01

Put entries in date order

Record when each observation was made. An invoice date, workshop visit and MOT test may refer to different events.

02

Convert miles and kilometres

For comparison, 10,000 miles is approximately 16,093 kilometres. Divide kilometres by 1.609344 to obtain miles.

03

Ask about inconsistencies

Check source documents if a reading falls or the units are unclear. Ask the seller or named workshop for an explanation.

Illustrative conversion only: 1 mile = 1.609344 kilometres. The rounded example is not a reading from a customer’s vehicle. A gap alone does not prove a fault or fraud.

Normalise units without changing the originals

Keep each reading and its unit. One mile equals 1.609344 kilometres; place a converted value in a separate comparison column and use consistent rounding. Never choose a unit simply because it makes an awkward sequence look continuous.

Group entries describing the same visit before assessing the trend. Several documents are not independent observations if they repeat one source.

Consider an error as a question to verify

• Could the reading have been transcribed incorrectly?
• Does a claimed display replacement have supporting documents?
• Is the entry attached to the correct VIN?
• Does the workshop recognise the mismatch and provide a correction?

These are possible enquiries, not explanations to accept without evidence. Keep a written source response and any corrected document beside the original.

Compare independent observations

MOT readings can add a dated observation, while invoices can clarify a workshop event. MOT and service records have different purposes. For a BMW-specific comparison, use the mileage discrepancy checklist.

Leave unresolved differences visible

If the sources still disagree, record both values and what remains unexplained. Do not label the car fraudulent, neglected or mechanically sound from the discrepancy alone. The document checklist helps organise evidence for the workshop or an independent inspector.

Related reading

• Missing Service History: Recovering the Evidence
• Service Invoices and Stamped Books: An Evidence Checklist
• BMW Mileage Discrepancies: Comparing the Evidence
• MOT History vs Service History: Tests and Maintenance

Sources and further guidance

• GOV.UK: MOT history
• GOV.UK: checks when buying a used vehicle