Engine Diagnostics

We provide advanced engine diagnostics designed to accurately identify faults, warning lights and drivability issues across all modern petrol and diesel vehicles.

Why Choose Professional Diagnostics?

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Fault Detection

Identify the exact cause of warning lights, fault codes and drivability issues using professional-grade diagnostic equipment.

Save Time & Money

Avoid unnecessary parts replacement by finding the real issue first time, rather than guessing and swapping components.

Live Data Analysis

Read live sensor data while the engine runs to catch intermittent faults that standard code readers often miss.

Limp Mode & Drivability

Resolve loss of power, rough running, stalling and limp mode issues with a clear systems-first diagnosis.

Clear Explanations

Understand exactly what's wrong with your vehicle in plain language, with no confusing jargon or upselling.

Pre-Purchase Checks

Considering buying a used vehicle? A full diagnostic check gives you peace of mind before you commit.

Handheld diagnostic tool with a screen labeled 'Data Stream' and two buttons labeled 'Enter Exit' and 'Scroll', held near a car's dashboard and power outlet.

A Systems-First Approach

A quality diagnosis is only as good as the engineer behind it. Every vehicle is thoroughly checked using professional tools and a logical, systems-first approach to find the true root cause.

"No guesswork. No part-swapping. Just an honest answer about what's wrong and what it'll take to fix it."

Why Choose Apex Motor Lab?

Advanced Diagnostics

Friendly local service

Mobile — we come to you

Convenient appointments

Competitive pricing

Honest advice, no pressure

Warranty-backed work

As part of Apex Motor Lab, we combine technical expertise with a passion for vehicles, ensuring every customer receives the highest level of service.

Close-up of a vintage car engine bay with shiny metal components, red-painted inner fenders, and various hoses and wires.

What We Check

Every System, Fully Checked, Explained.

A complete diagnostic check covers every major system in your vehicle, giving you a clear picture of its overall health and any underlying issues that might not be obvious yet.

Engine management, fuel system, emissions, transmission and ABS — every fault code is read, cross-referenced with live data and checked against your vehicle's specific history.

Once the scan is complete, we explain every finding in plain language, outline what's urgent versus what can wait, and give you a clear plan for next steps.

Frequently Asked Questions

  • We connect professional diagnostic equipment to your vehicle to read fault codes, check live sensor data and identify the root cause of any issue.

  • Most diagnostics take between 30 minutes and an hour, depending on the complexity of the fault and how many systems need checking.

  • Yes. Some faults don't affect drivability immediately but can lead to bigger problems or expensive damage if left unchecked.

  • In many cases, yes. Once the fault is identified, we'll explain your options and can often carry out the repair or remap during the same appointment.

  • Yes, we come to your home or workplace across Somerset, so you don't need to take time off or visit a workshop.

Got a Problem?
We'll Find It.

Mobile across Somerset — fast response, honest advice, no guesswork.