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DIAG-1

Engine Diagnostic - HQ Only

Gas type: 1 Hour

Engine Diagnostic Assessment (1-Hour / 2-Hour Options)

Our diagnostic assessment service is designed to identify faults, performance issues, or underlying mechanical concerns using manufacturer-approved diagnostic equipment and professional inspection procedures.

This service is suitable for vehicles experiencing warning lights, drivability issues, performance concerns, or requiring fault investigation following a reported issue.

What’s included (both options):

  • Full ECU fault code scan and report

  • Live data analysis (engine parameters, temperatures, fuelling, boost where applicable)

  • Visual inspection of key engine components

  • Review of vehicle modification and service history (where provided)

  • Professional findings summary and recommendations


1-Hour Diagnostic Assessment

Ideal for initial fault finding and standard diagnostics.

Includes:

  • Single system or symptom investigation

  • Fault code identification and live data review

  • Initial diagnostic conclusion

Best suited for warning lights, basic running issues, or first-stage investigation.


2-Hour Diagnostic Assessment

Recommended for more complex issues or ongoing faults.

Includes:

  • Extended live data analysis

  • Multi-system diagnostics

  • Deeper investigation into engine performance, temperature, and fuelling data

  • Further testing and validation where possible within time allowance

Best suited for intermittent faults, performance concerns, or when further investigation is required.


Please note:
Diagnostic time covers investigation only. No repairs, part replacement, or strip-down work is included unless agreed separately. Findings are based on the vehicle condition at the time of inspection.

FAQ's

Yes, our 'hub' boasts a comfortable waiting area with ample seating and workspace, free Wi-Fi, complimentary coffee and snacks, plus it features a large selection of our products and engines on display, too.

With over 40-years of designing, producing and fitting ECU/TCU software, components and engines, there is no better choice than mountune to have your performance parts fitted. Just like you, we're all petrolheads and treat your pride and joy with the care and attention that it deserves (as if it were our own car), so you can have complete peace of mind of not only the highest levels of workmanship, but that the people that designed the hardware or software are also installing it as originally intended.

You'll also be able to collect and spend mountune reward points too, helping you save money.

For all of our garage services our labour rate is currently £100 per hour (£83.33 +VAT).

Yes, when you choose mountune to install your performance parts and ECU/TCU tuning, not only can you spend any mountune reward points you've collected (in the usual way), you'll also earn mountune rewards too. So you can save more and spend less, regardless of how you shop with us.

Yes, we offer a comprehensive service for your Ford or VAG model using manufacturer approved or supplied parts, in accordance with our extensive schedule. Please see our separate servicing products, which can be added to your basket and booked individually, or together with performance upgrades.

It's also the only place you'll get a 'mountune' stamp in your book!

If you have other hardware you'd like installed together with your mountune upgrades please let one of our workshop team know and we'll do our best to accommodate you.

Our workshop currently operates Monday - Friday, 8.00am - 4:30pm. If you have any special requirements around dropping off or picking up your vehicle, please just let us know and we'll do our best to accommodate you.

Yes, whilst booking an upgrade or service online is the best way to secure products and services in our workshop, you'll normally be able to add additional performance parts on the day as well, should you wish.

Routine servicing will not affect your Ford warranty. However, any modificationsto your car may impact it, so it’s important to check with your warranty provider before making changes.

We also offer the mountuneWarranty, which covers both your car and the modifications. Click here to find out more.