Modern tools. Real answers.
Diagnostics & Fault Finding
Accurate diagnosis using proper testing and inspection before replacing parts — so you fix what's actually broken, first time.
- Warning light investigation
- Fault-code scanning
- Clear repair recommendations
What we can help with
Pinpoint the problem.
Warning light investigation
We trace every active light back to its real cause — not just the first code that comes up on the scanner.
Fault-code scanning
Full OBD-II scan across all onboard systems, cross-checked against live sensor data and a physical inspection.
Clear repair recommendations
A plain-English report and fixed-price quote — you decide what happens next, with nothing hidden.
Written diagnostic report
You get a clear summary of what we found, what it means, and what needs doing — in plain English.
What we do
A warning light isn't a diagnosis — it's a question.
Modern cars hide hundreds of sensors behind that glow on your dashboard. Guessing means paying for parts you never needed, sending your car back for the same fault, and losing trust in whoever's holding the keys.
We pinpoint the real fault, first time — with proper testing and inspection before a single part gets ordered.
Advanced Equipment
Dealer-level diagnostic tools that read manufacturer-specific codes, not just generic OBD-II.
Expert Technicians
Experienced hands that know how to interpret live data — not just clear a light and send you away.
Save Time & Money
Find the real fault first time so you don’t pay for parts that were never broken.
Honest & Transparent
Clear explanation of what’s wrong, what it costs, and what happens next — before any work starts.
Code Reading vs Proper Diagnosis
Most garages plug in a scanner, read a fault code, and tell you to replace whatever part the code mentions. That approach works sometimes — but it fails often enough to cost drivers hundreds in unnecessary parts.
A fault code is a starting point, not an answer. If the code says ‘O2 sensor performance’, the sensor itself might be fine — the real cause could be a vacuum leak, a wiring fault, or a fuelling issue upstream. The only way to know is to test.
Common Faults We Investigate
These are the types of problems drivers bring to us most often. If something on this list sounds familiar, a diagnostic check is usually the fastest way to get a clear answer.
Diagnostic Health Check from £55
Credited towards repair if you go ahead with the work
Trusted by drivers in Coventry
5.0 ★ from 105+ reviews
“Professional & great service. Would highly recommend”
Jane Wilkinson
“Fantastic service. Very pleased with the outcome. Thank you.”
Simon Kinser
“Friendly and Honest Garage!”
Stefan
A real local workshop
Visit our garage at CV7 7SL
The Motor Medics is a family-run garage at Unit 1, Home Farm, Meriden Road, Coventry. Your vehicle is inspected at the workshop, the quote is agreed before repairs begin, and local collection can be discussed when practical.
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Frequently asked questions
Rare, but if it happens, we'll tell you honestly rather than guess. You only pay the diagnostic fee for the time and testing carried out — never for parts you didn't need.