by A car can pass its MOT and still have a list of advisories. If the same sort of warning appears in several years, it is reasonable to pause before buying. It is not proof that the seller ignored a fault, and it does not tell you what condition the car is in today. It gives you a question to investigate.
What does an advisory mean?
GOV.UK says a passing MOT can list minor or advisory problems to monitor or fix in the future. A major or dangerous defect causes a fail. Our MOT history walkthrough explains how to compare test results, mileage and recorded defects. Read the wording and date of each entry, rather than treating every warning as equally serious.
An MOT is a test result at a point in time. It cannot confirm whether an advisory was repaired after the test or whether a fresh problem has developed since. That is why the paperwork and the car in front of you matter as much as the online record.
Read the pattern across several tests
Start with the most recent test and work backwards. Note the component, the wording and the mileage. Did a similar warning appear again the following year? Was there a later failure or repair relating to that area? Did the issue disappear from the record?
Be careful with the last question. An advisory no longer appearing does not, by itself, prove a repair. Equally, similar wording in two years does not prove it is the same part or the same unresolved fault. Tyres, for example, can be replaced and then wear again. Ask for evidence before drawing a conclusion.
Pay particular attention to repeated mentions of brakes, tyres, steering, suspension or corrosion. You do not need to diagnose the car from the MOT screen. Use the history to decide what needs a closer look by someone qualified.
Questions to put to the seller
- Was this item repaired? Ask when the work was done and request the invoice or service record. A verbal assurance is less useful than a dated record that identifies the work.
- Has it been checked since the last MOT? The latest certificate might be months old. Ask what maintenance has happened in the meantime.
- Can I have the car inspected? A seller willing to allow an independent inspection gives you a way to assess the current condition before committing.
- Is the asking price based on any work still needed? If a mechanic identifies a repair, get a written estimate before deciding whether the price makes sense.
What to do at the viewing
Compare the registration and vehicle details with the advert, then walk around the car and take a proper test drive where appropriate. Look for obvious tyre wear, warning lights or signs that something feels wrong. Do not try to judge brake or suspension condition from a quick glance; ask a qualified mechanic to inspect anything you cannot assess safely.
If a seller cannot explain a recurring warning, will not share available paperwork or refuses a reasonable inspection, you can walk away. There will be other cars. A tidy advert and a fresh MOT pass are not substitutes for evidence of condition.
Advisory, failure or dangerous defect?
Keep these separate. An advisory can appear on a pass. GOV.UK says major and dangerous defects cause a fail, and a vehicle with a dangerous defect must be repaired before it is driven. Read the official guidance on MOT results if the record shows a failure. Do not use an old pass to dismiss a later serious result.
For the wider picture, see our MOT history guide and used-car viewing checklist. They help you compare the record with the vehicle and the seller’s documents. Our vehicle lookup is temporarily paused; these guides explain the checks to make rather than providing a live report.
Compare mileage and the wider history
If the readings do not line up with the seller’s paperwork, use our mileage discrepancy guide to decide what evidence to request. Our car history guide covers questions the MOT record cannot answer.