Car Diagnostics Swansea

Manselton MOT & Service Centre provides professional car diagnostics in Swansea for cars and light commercial vehicles. Modern vehicles rely on complex electronic systems, and when faults occur, accurate diagnostics are essential to identify the cause quickly and correctly.

Our experienced technicians use modern diagnostic equipment to investigate warning lights, performance issues and electrical problems, helping prevent unnecessary repairs and reducing the risk of further damage.

Accurate Vehicle Diagnostics in Swansea

Car diagnostics allows us to communicate directly with your vehicle’s onboard systems to identify fault codes and performance issues. This process helps pinpoint problems affecting engine management, emissions systems, sensors and electrical components.

We carry out diagnostics on petrol, diesel, hybrid and electric vehicles and regularly assist customers across Swansea who are experiencing warning lights, loss of power or unexplained running issues.

Fault Finding at Our Swansea Garage

Diagnostic testing is often the first step before carrying out repairs. Once a fault has been identified, we explain the results clearly and advise on the most effective solution.

Depending on the issue, diagnostics may lead to engine repairs, car electrical fault repairs, DPF cleaning, or other car repairs in Swansea. Many faults are also identified during vehicle servicing or following an MOT failure, allowing us to address problems early.

Vehicles Diagnosed & Serviced

1100+

Faults Identified

4500+

Repairs Completed

3000+

Call Now to Book Car Diagnostics in Swansea

Why Choose Manselton MOT & Service Centre for Car Diagnostics

Experienced Technicians


Our technicians have extensive experience diagnosing faults across a wide range of vehicle makes and models.

Modern Diagnostic Equipment


We use up-to-date diagnostic tools to accurately identify faults and system issues.

Clear, Honest Advice


Diagnostic results are explained clearly, with no unnecessary repairs recommended.

Repairs Available On-Site


Once faults are identified, we can carry out related repairs such as engine repairs, electrical fault repairs or exhaust repairs, saving time and inconvenience.

Frequently Asked Questions

What is car diagnostics?

Car diagnostics involves connecting specialist equipment to your vehicle to identify fault codes and system issues affecting performance or safety.

Why is my warning light on?

Warning lights can indicate sensor faults, emissions issues, electrical problems or mechanical concerns. Diagnostics allows us to identify the exact cause.

How long does diagnostic testing take?

Most diagnostic checks take between 30 and 60 minutes, depending on the issue and vehicle type.

Does diagnostics include repairs?

Diagnostics identifies the problem. Any required repairs, such as engine repairs or car electrical fault repairs, are quoted separately.

Can diagnostics prevent breakdowns?

Yes. Early fault detection can help prevent more serious damage and unexpected breakdowns.

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