Christopher Lisseman
Oct 2026
Engineer called me ahead of time and arrived on time. He was very friendly and knowledgeable and fixed my adblue fault in around 25 mins. Really pleased with the service
Posted on Google · view on our Google profileSpecialist Software
NOx & UREA Fault Support
Send STX Tuning your vehicle details, exact NOx or UREA warning, fault codes and intended use. A warning does not identify a failed component. We assess eligible software enquiries; this is not a sensor, tank, pump or injector replacement service.
4.9/5500+ Google ReviewsSee Google ReviewsYour vehicle and request
Read the service scope, then send your vehicle details, current modifications and intended use for assessment.
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We assess your vehicle and request
We review the vehicle details, warning or requested change, existing modifications and intended use. We explain the available assessment or software route and confirm a quotation before booking.
What the warning or request tells us
A code or dashboard message is information for assessment, not a definitive diagnosis. Send the exact code, symptoms, fitted hardware and any previous software changes. Modified exhausts do not automatically require software changes or cause limp mode.
Scope and intended use
Software does not repair failed mechanical parts, sensors or wiring. Removing or disabling emissions equipment is not offered for road-going vehicles. Off-road, competition or export descriptions do not automatically establish eligibility; the application must be assessed.
Who It's For
- Vehicles showing AdBlue/UREA warnings
- NOx sensor fault codes
- AdBlue countdown or no-start situations
- Owners wanting an honest assessment before spending
Real Benefits, Realistic Expectations
- Vehicle details reviewed before quotation
- No assumed compatibility or guaranteed outcome
- Scope and intended use checked first
How It Works
- 01
Send your vehicle and request
Include exact codes, current hardware and intended use.
- 02
We assess your vehicle and request
We review the vehicle details, warning or requested change, existing modifications and intended use. We explain the available assessment or software route and confirm a quotation before booking.
- 03
Confirm appointment requirements
Programming access and workshop or suitable mobile arrangements depend on the vehicle and agreed work.
Check Your Vehicle
Check the exact engine, software support, existing modifications and appointment requirements before booking.
Workshop & Mobile Availability
Workshop or mobile suitability depends on vehicle access, postcode and agreed scope. No universal mobile availability or duration is promised.
Common Questions
Does a warning identify a failed part?
No. A code can have several causes. An enquiry does not establish a diagnosis or confirm that software is appropriate.
Is a service confirmed when I select it?
No. STX Tuning checks the exact vehicle, intended use and supported functions before confirming any available service or quotation.
Can the work be carried out mobile?
Only where the exact vehicle, programming requirements, location and agreed work are suitable. Workshop access may be required.
Support Doesn't End When Your Remap Is Complete
- Eligible software warranty. Eligible STX Tuning software work carries a lifetime software warranty. It applies to the software work itself, as set out in the warranty terms; it is not cover for mechanical parts or other work.
- Asking for help. Call or message us with your registration and what you've noticed. We'll arrange to check the vehicle.
- How issues are assessed. We read the vehicle and check whether the concern relates to our software or something else, such as a fault or worn part.
- Manufacturer updates. A dealer software update can overwrite a remap. Tell us if your vehicle has been updated and we'll advise on the next step.
- Additional work. Diagnostics, repairs or new software work not covered by the warranty are quoted before anything is done.
Discuss My Vehicle
Send your vehicle details, exact request, fitted or proposed hardware and intended use. STX Tuning reviews the scope and confirms whether a quotation can be offered.
01753 439130