Yes — for any used car over £3,000, a pre-purchase inspection is the cheapest insurance possible. UK independent garage inspections run £100–£250, or our remote pre-purchase report is £14.99 with photos. The average UK used car has £900 of unreported faults — a £150 inspection saves money on 60%+ of buys.
Buying a used car blind is the most expensive way to save £150. Here's why pre-purchase inspections pay for themselves.
What an inspection finds
Hidden accident damage, mileage discrepancy, advisory items not disclosed, MOT history red flags, cambelt overdue, head gasket warning signs, hidden ECU faults, missing service history, finance still on the car.
Why sellers don't want one
A genuine private seller won't object to an inspection. A trader who refuses one is hiding something — walk away. Same goes for 'buy today or it's gone' pressure tactics.
DIY checks you can do free
Run the reg on the gov.uk MOT history page — read every advisory ever issued. Check the V5C matches the car (chassis number under the bonnet). Run an HPI check (£10–£20) for finance, theft, write-off.
Cost vs benefit
On a £6,000 car: inspection £150 — saves £900 average in hidden faults = 6× return. On a £15,000 car the maths is even better. Our remote £14.99 report uses MOT history + your photos to flag the obvious red flags before you visit.
Will the seller let me get an inspection? — Genuine sellers — yes. Pushy sellers — no, and that's your answer.
Can I get an inspection on a private sale? — Yes — most independents will travel up to 30 minutes for £100–£200, or do it at their workshop if you can drive the car there.
More detail on: Is it worth getting a pre-purchase inspection?
The short answer above covers the usual case. Below is the extra detail a UK driver normally needs to act on it — how to narrow the fault down, what it should cost, and when it is worth paying a garage rather than carrying on. This is general guidance from a working mechanic, not a substitute for someone putting your own car on a ramp.
How to describe the problem so you get a straight answer
Mechanics diagnose faster when they get facts rather than conclusions. Give the make, model, engine size, fuel type, year and mileage; say exactly when the fault happens (cold start, motorway speed, braking, turning, first five minutes); say what changed just before it started; and list any codes, warning lights or recent work. A three-line description in that shape is worth more than a paragraph of theory.
What to do before you spend money
Run a free MOT history check to see whether the same item has been advisoried before — that history often explains a fault in one line. Check whether an open safety recall covers the component, because that repair is free at a franchised dealer. Then get the fault properly diagnosed rather than replacing parts in order of price.
When it is worth going to a main dealer
Three situations justify main-dealer money: an open safety recall (free), a live manufacturer warranty or goodwill claim, and coding or programming work that needs manufacturer-level software. Everything else — servicing, brakes, suspension, clutches, cambelts, diagnostics — an experienced independent will do to the same standard for a good deal less, and using an independent does not invalidate your warranty under UK block exemption rules as long as the correct parts and schedule are used.
Safe to keep driving?
Treat anything affecting brakes, steering, tyres, seat belts or visibility as stop-now, no matter how well the car appears to be driving. Overheating and low oil pressure are also stop-now: the damage curve on both is measured in minutes, not miles. Most other faults will let you drive gently to a garage, but if the car is in limp mode, losing fluid, or the fault changes how it steers or stops, get it recovered instead. Recovery is cheaper than a tow plus a new engine.
What Bob would check first
Start with the cheap, common and visible: fluid levels and their condition, tyre pressures and wear pattern, battery voltage and terminal condition, and every connector and vacuum pipe in the area of the fault. A surprising share of electrical gremlins are a corroded earth or a chafed loom, and a surprising share of running faults are an air leak downstream of the sensor doing the complaining. Only after that does anything get unbolted.
Get an answer on your own car
If you want this looked at properly for your exact vehicle, send the details and Bob will write back — make, model, engine, mileage, when the fault happens and any codes you have. You get a written reply from a qualified UK mechanic with 32 years on the tools, not a chatbot, and your money back if he cannot help.
Ask a mechanic about your car · Free MOT history check · Free recall check · Fault code library