MOT And Diagnostics St Helens
MOT and Diagnostics St Helens - Call us now on 01744 808586

Complete vehicle testing & fault finding in one visit:
At our St Helens garage, we offer combined MOT testing and full vehicle diagnostics, helping you stay road legal and avoid unexpected breakdowns. Whether you're prepping for an MOT or resolving a warning light, our diagnostic tools and DVSA-approved MOT bay give you fast, clear answers.
If you're searching for MOT and diagnostics near me in St Helens, we're here to provide a convenient one-stop solution.
Book your MOT online in under 3 minutes:

What’s included in our MOT and diagnostics service?
Many vehicles fail their MOT due to issues that could have been easily found with a diagnostic scan. We make it easy by offering both services in one place:
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Class 4 DVSA-approved MOT test
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Pre-MOT diagnostic check (optional)
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Full fault code scan using dealer-level diagnostic tools
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Warning light investigation (engine, ABS, DPF, airbag, etc.)
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Live data readings and system status checks
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Advice and repair options if faults are found
Whether your vehicle has a check engine light on, failed an MOT, or just doesn’t feel right — we can help.
Why combine MOT testing with vehicle diagnostics?
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Save time & money: Diagnose issues before your test and avoid repeat visits.
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Fix faults before MOT: Increase your chances of passing first time.
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Accurate diagnosis: Avoid guesswork and unnecessary parts.
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Peace of mind: Know your car is running safely and efficiently.
Many drivers in St Helens search for car diagnostics before MOT or fault-finding garage near me – and that’s exactly what we deliver.
Book MOT and diagnostic testing in St Helens:
Booking is quick and easy. We welcome cars and light vans from across St Helens and surrounding areas like Rainhill, Haydock, Eccleston, and Newton-le-Willows.
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Same-day appointments often available
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Free MOT retest if you repair with us
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Modern diagnostics for petrol, diesel, hybrid, and electric vehicles
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No-obligation quotes on repair work
Areas we serve:
We regularly help drivers from:
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St Helens Town Centre
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Sutton & Thatto Heath
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Haydock
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Eccleston
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Rainhill
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Newton-le-Willows
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Clock Face
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Garswood
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Billinge
MOT and diagnostics FAQ – St Helens:
Q: Do I need a diagnostic before my MOT test?
A: Not always, but if your vehicle has any warning lights or known issues, a pre-test diagnostic check can help you pass first time and avoid unnecessary failures.
Q: Will my MOT fail if a warning light is on?
A: Yes, many warning lights such as engine management, airbag, or ABS will cause an MOT failure. We can diagnose and often fix these issues before or after your MOT test.
Q: How much does a diagnostics scan cost?
A: We offer a full diagnostic scan from just £35, or discounted when booked alongside your MOT test.
Q: What kind of faults can you detect?
A: We can read fault codes from the engine, gearbox, brakes, suspension, battery systems, emissions, exhaust sensors, DPF, and more.
Q: Can you fix problems found during diagnostics?
A: Yes – we offer a full repair service for most faults and can advise you on the best solution and cost before any work is carried out.
Why choose us for MOT and car diagnostics in St Helens?
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Local garage with a reputation for honesty and expertise
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DVSA-approved MOT testers and qualified technicians
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Advanced diagnostics tools for all makes and models
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Transparent pricing with no pressure selling
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Family-run business with over 20 years’ experience
Call now or book online to schedule your MOT and diagnostics in St Helens. We'll help you keep your vehicle roadworthy, safe, and fully compliant.