- Engine, gearbox or other warning lights
- Loss of power, poor running or intermittent faults
- Starting, charging or electrical problems
- A fault that another repair has not resolved
Engine Diagnostics
Car Diagnostics in Hornchurch
A warning light is a starting point, not a diagnosis. We use scan tools, live data and practical electrical or sensor testing to understand what is happening, then give you a clear explanation before any repair work is agreed.
What to look out for
When to book vehicle diagnostics
How we can help
Diagnosis that looks for the cause
We carry out a full-system fault scan and review live data where useful. The next step may include electrical or sensor testing, and we explain the results so you know what work is actually needed.
- Full-system fault scan and live data
- Electrical and sensor testing
- Written report before any work begins
Need engine diagnostics?
Tell us about your vehicle and the symptoms. We will explain the next step and provide an honest quote before work starts.
Common questions
Engine Diagnostics FAQs
What does a diagnostic test check?
A diagnostic assessment can read stored fault codes and live data from vehicle systems, then guide further testing where needed.
Does a fault code tell you exactly which part to replace?
Not always. A code points to an affected system, but the underlying cause still needs to be checked.
Can diagnostics help with gearbox problems?
Yes. Diagnostic information can be an important part of investigating automatic gearbox and transmission faults.
Related services
Other ways we can help
Automatic Gearbox Repair
Diagnosis and repair of automatic gearboxes and transmissions.
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Engine Rebuild
Full strip-down and rebuild to manufacturer specification.
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Turbocharger Repair
Loss of power or smoke — turbo diagnosis, repair and replacement.
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Head Gasket Repair
Overheating or losing coolant? Proper head gasket repairs.
Learn more