Advanced Diagnostics
Professional-grade diagnostic tools used to pinpoint problems quickly and correctly: first time, every time.
Part of the Autotech Motorworks Group
West Midlands' Mobile Diagnostic & Fault-Finding Specialists
Dealer-level fault diagnosis, straight-talking advice and full repairs — carried out at your home or workplace. We find the fault first, so nothing gets guessed at or over-fixed.
- We come to you
- Dealer-level diagnostic equipment
- All makes & models
- Backed by 14+ years' trade experience
Get a Price in Minutes
Tell us about your vehicle and the fault, and we'll come back with a clear, no-obligation quote.
0+Years' Trade Experience
0%Mobile: We Come To You
0£Hidden Costs, Ever
0/7Emergency Fault Response
What We Offer
Diagnostics-First. Repairs Done Right.
Every fault is properly diagnosed with professional-grade equipment before any work is quoted, so you're paying to fix the real problem — not guesswork.
Mobile Diagnostics
On-site diagnostic checks using dealer-level equipment — no need to book into a garage to find the fault.
Electrical Fault Diagnosis
Accurate testing and repair of wiring, sensors and dashboard warning lights: traced and fixed, not guessed at.
Vehicle Servicing
Routine maintenance completed on-site to keep your vehicle running efficiently and reliably, mile after mile.
Mechanical Repairs
Expert repairs covering brakes, suspension, clutches and the common mechanical faults that put cars off the road.
Battery Replacement
Fast, on-site testing and replacement so a flat or failing battery doesn't leave you stranded.
DPF Cleaning & Regeneration
Effective solutions to restore performance, clear warning alerts and avoid costly filter replacement.
Pre-Purchase & Pre-Delivery Inspections
Thorough, independent checks that give you confidence and negotiating power before you buy or sell.
Simple, No-Pressure Process
Booking a Mobile Diagnostic Made Easy
1
Enter your registration
So we can provide accurate pricing for your exact make and model: no guesswork, no generic quotes.
2
Choose your service
Transparent pricing shown upfront, so you know exactly what you're paying before the day of the appointment.
3
Confirm your booking
We'll call to confirm, and if you miss it, don't worry — your appointment is still locked in the diary.
Get a Price Now
We can diagnose, service, MOT-prep and repair all makes and models.
Why Local Drivers Choose Us
Built Around Accurate Diagnosis and Honest Advice
Mr Diagnostic is the dedicated diagnostics specialism of the Autotech Motorworks Group, focused on solving problems others can't — especially the ongoing, previously unresolved faults that keep coming back. Emergency response and fault-finding support are available for when you need it most.
NHS staff, students and Blue Light workers receive dedicated discounts, reflecting a real commitment to the local community.
Get a Price OnlinePart of the Autotech Motorworks Group — the same trusted mobile mechanics, rated on Google. Read customer reviews →
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Dealer-Level Diagnostic Equipment
Professional fault-finding kit that goes beyond a generic code reader.
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Fully Mobile Convenience
Diagnostics and repairs completed at your chosen location — home or work.
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Fast Response Times
Quicker turnaround than many main dealers and larger garages.
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Trade Network Support
Access to trusted industry contacts for specialist input when required.
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Honest, Clear Advice
Straightforward explanations, with no unnecessary work ever recommended.
Where We Work
Proudly Serving Birmingham & the West Midlands
Based in Birmingham, covering Sutton Coldfield, Tamworth, Lichfield, Atherstone, Nuneaton, Hinckley and the surrounding West Midlands. Not sure if you're in range? Get in touch and we'll let you know.
Open in Google Maps →Good to Know
Frequently Asked Questions
Both. We diagnose the fault properly first using dealer-level equipment, then carry out the repair on the spot wherever possible — so you're not paying twice for someone else to finish the job.
Yes, that's the whole point. All diagnostics, servicing and repairs are carried out at a location that suits you, so you don't need to take time off or sit in a waiting room.
We price based on your exact vehicle registration and the fault or service you need, and confirm it with you before any work starts — no hidden extras.
Birmingham and the wider West Midlands, including Sutton Coldfield, Tamworth, Lichfield, Atherstone, Nuneaton and Hinckley. Get in touch if you're not sure you're in range.
Yes — NHS staff, students and Blue Light workers receive a dedicated discount. Ask when you get your quote.
Yes. Warning lights often flag issues well before they become noticeable — or expensive. A quick diagnostic check gives you a clear answer instead of a guessing game.
Get In Touch
Send Your Details
Send your details and we'll call you back to confirm pricing and a time that works for you.
- 07795 900009
- Message us on WhatsApp
- Google Reviews
- TikTok
- Birmingham & the West Midlands
Opening Hours
Open 24 hours, 7 days a week