Specialist Vehicle Diagnostics, Repairs & Auto Electrical
Clear, logical answers to complex and intermittent faults.
At Autodiag, we specialise in advanced vehicle diagnostics and auto-electrical investigation.
We are often asked to look at vehicles where previous repairs have not resolved the problem or where the cause is unclear.
Our role is simple: work methodically, test carefully, and base recommendations on evidence rather than assumptions.
Who we work with
- private vehicle owners
- motor traders
- warranty companies
- other garages who refer vehicles for specialist investigation
Our approach is structured and transparent, focusing on identifying the root cause of a problem — not swapping parts in the hope it helps.
After-market warranty repairs
We regularly diagnose vehicles covered by after-market warranty policies. We don’t deal directly with warranty companies, but we provide full diagnostic reports and written estimates so customers can submit claims themselves.
More details about how this works can be found on our
Diagnostics page.
Not just diagnostics — full mechanical repairs too
Although diagnostics is a major part of what we do, Autodiag is also a fully equipped repair workshop.
We carry out:
- mechanical repairs and servicing
- driveline, engine and cooling system investigations
- brake and suspension repairs
- MOT testing and post-MOT rectification work
We diagnose first — then discuss repair options based on what the testing shows.
This helps avoid unnecessary parts and unexpected costs.
When Autodiag is the right choice
We are a good fit if:
- a fault is intermittent or difficult to replicate
- warning lights keep returning after repairs
- an electrical issue is suspected
- the battery is draining and the reason isn’t obvious
- another garage has advised further diagnosis is required
- the vehicle has ongoing drivability or mechanical concerns
We deal with modern vehicle control systems every day, including multiplexed wiring networks and control modules.
Important information about diagnostic time
The diagnostic time shown on our pricing is a maximum allowance.
In some cases faults are identified more quickly; in others, further testing may be required.
The diagnostic charge remains fixed for the booked session so the process stays fair and consistent.
All diagnostic work includes a clear write-up explaining findings and recommendations.
Contact us
If you’re unsure which service applies to your vehicle, feel free to ask — we’re happy to advise before booking.
CALL: 01788 877660
EMAIL: service@autodiag.co.uk
Our location
4 Laughing Dog Industrial Estate
London Road
Rugby
CV23 9LP
(A detailed map is shown on the Contact page.)
Customer feedback
Below are a selection of genuine comments from customers and trade partners who have used our services.
⭐⭐⭐⭐⭐
“Outstanding diagnostic service. Clear explanations and helpful advice throughout.”
⭐⭐⭐⭐⭐
“Professional, honest and extremely knowledgeable.”
⭐⭐⭐⭐⭐
“Referred here by another garage. Very thorough and easy to understand.”
⭐⭐⭐⭐⭐
“Battery drain issue finally identified and explained clearly.”
⭐⭐⭐⭐⭐
“Helpful with warranty work and provided clear evidence for the claim.”
These comments reflect individual customer experiences and are shared to help explain how we work day-to-day.
Trusted by the industry
We support private owners, trade customers and warranty providers, and we continue to invest in professional diagnostic platforms and training. This allows us to handle both electrical and mechanical fault investigation across a wide range of vehicles.
If you would like to book in, discuss a fault, or simply get some advice, please
get in touch and we’ll be happy to help.