Know What the Repair Should Cost — Before the Garage Rings

The problem with an MOT failure isn’t the failure. It’s that you are asked to approve a repair bill within minutes, on parts you can’t see, at a price you have no way of checking, by the only person in the conversation who knows what the work is worth.

This agent closes that gap. Give it a registration that has just failed and it performs deep research across UK parts suppliers, dealer listings and trade sources for your exact make, model and year, then comes back with a realistic price range for every defect — every figure cited, so you can see where it came from. £4.99, one vehicle, no subscription.

What the Agent Actually Does

This isn’t a lookup table of average repair costs. It is an autonomous agent doing roughly an hour of research per failure area, for your specific vehicle:

• Reads your actual failure sheet. The real defects recorded against your registration at the DVSA, not a generic list for the model.
• Researches parts prices for your exact vehicle across UK suppliers — make, model, year and variant, because the same part can differ several-fold between trims.
• Estimates the labour, because on many jobs the labour is most of the bill and the part is almost an afterthought.
• Cites every figure. You can follow each price back to where it was found and judge it yourself.
• Covers every defect on the sheet, not just the headline one.

When to Use It

Ideally in the window between the result appearing and the garage ringing you — which is usually longer than people expect, and is exactly the window On The Day Agent exists to give you. Walking into that phone call already knowing that a part is a £60 part rather than a £300 part changes the conversation entirely, and it changes it without you having to be adversarial about it. It is equally useful afterwards, if you have a quote in hand and want to know whether to get a second one.

Free Analysis or the Research Agent?

• Failure Analysis — free. Every defect on your failure translated into plain English, so you understand what is wrong. For a single obvious failure, this is often all you need.
• Failure Research AI Agent — £4.99. Adds the money: real researched UK prices per defect for your exact vehicle, with sources and a labour estimate. Worth it when the failure list is long, the car is unfamiliar, or the quote you have been given feels high.

A single defect priced correctly usually covers the cost of the report several times over — but the free tool is genuinely free, and there is no obligation to go any further.

Before Your Next MOT

Two free things worth knowing about. On The Day Agent tells you the result on the day of the test, as soon as the DVSA publishes it — which is what buys you the research window in the first place. And the free MOT history report shows you every advisory on record, which is the best available warning of what next year’s test is likely to pick up. If you are weighing up a repair against replacing the car, the MOT failure guide covers that decision.