Servicing & MOT
Repairs
Engine & Drivetrain
Diagnostics & EmissionsMillfields Auto Services
Diagnostics
We combine code reads with live data and component tests to pinpoint the fault before repairs.
Why book with us
Diagnostics with clear advice.
Targeted testing
Scan data plus electrical or mechanical tests, not just code reading.
Find the root cause
We separate symptoms from causes so you know what actually failed.
Repair options given
Summary with likely fix and costed next steps.
Diagnostics
Diagnostics covers
Clear expectations, no surprises. If anything extra is needed, we explain it first.
- Symptom discussion and test plan.
- Diagnostic scan with live data review.
- Electrical, charging, or pressure tests where relevant.
- Additional mechanical checks as symptoms require.
- Written summary with repair recommendations.
Diagnostics
Common questions
- What does a diagnostic test cost?
- Our diagnostic service starts from £50 depending on the fault. The cost may be offset against any repair work you choose to proceed with.
- Do you diagnose warning lights on hybrid and electric vehicles?
- Yes — we have experience with warning lights and fault codes on petrol, diesel, hybrid and electric vehicles. We use advanced diagnostic equipment suitable for all vehicle types.
- Will the diagnostic tell me exactly what is wrong?
- Our diagnostics combine code reading with live data and physical testing to identify the root cause. This gives you a clear picture of the fault and the most cost-effective fix.
From the blog
Helpful guides
Areas served
Serving drivers across the local area
We provide diagnostics for customers from across the region — book online or call us.