AI car diagnostics uses your fault codes, symptoms, mileage and vehicle details to rank the most likely causes of a fault and put realistic UK cost bands against each one.
What AI car diagnostics can do
Given your fault codes, symptoms, mileage and vehicle details, an AI diagnostic can rank the likely causes of a fault and put realistic cost bands against each one. It is genuinely good at pattern-matching a code and a symptom to the faults that commonly produce that combination on that model.
It is also fast and available at two in the morning, which is when most people are standing in a car park wondering whether it is safe to drive home.
What it gets wrong
It cannot hear the noise, feel the play in a joint, smell a coolant leak or see the corrosion. Those four senses solve a large share of real workshop diagnoses and no amount of text input replaces them.
It also tends to over-trust the fault code. A P0171 lean code has a dozen possible causes and the cheap ones get suggested first, which is fine as an order of investigation but poor as a conclusion.
And it does not know your car's history. A fault that started the week after a timing belt change is a different problem from the same code on an untouched engine.
How to use it sensibly
Use AI diagnostics to build a shortlist and to understand what a garage is telling you. Then verify the shortlist with actual tests — a live data reading, a pressure test, a wiggle test on the loom — before anybody buys a part.
Our instant AI report is £19.99 and gives you a ranked cause list with UK cost bands. If you want the same fault read by a human, Bob's written answer is £14.99 within six hours. Plenty of people buy both: the report to understand it, the human to confirm it.
Frequently asked questions
Can AI diagnose a car fault?
It can rank likely causes from fault codes and symptoms with reasonable accuracy, but it cannot replace physical tests. Treat it as a shortlist, not a verdict.
How accurate is AI car diagnostics?
Good on common code-and-symptom combinations, weak on intermittent electrical faults, noises and anything requiring hands on the car.
How much does an AI diagnostic report cost?
£19.99 for a full instant report with ranked causes and UK cost bands.
Is a human mechanic better?
For anything you can describe precisely, a human answer at £14.99 is more reliable. For instant triage at midnight, the AI report gets you moving.