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Fault Finding
Read and investigate fault codes across supported vehicle control modules and systems.
Mobile vehicle diagnostics • Oxford & surrounding areas
Diagnostics that tell you what's wrong.
Professional mobile diagnostics, fault finding, coding and vehicle health checks. We come to you and explain the results clearly.
BMW • Audi • Volkswagen / Golf • Mercedes-Benz • Toyota
Mobile service
Fast • Reliable • Professional
£20Basic fault scan
£35Advanced diagnostic
£50Premium diagnostic
5+Featured manufacturers
What we do
Real diagnostics. No guessing.
Mobile vehicle diagnostics and coding with clear explanations of what the scan actually means.
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Vehicle Diagnostics
Full-system scans, health checks, live data and diagnostic reports where supported.
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Coding & Configuration
Supported coding, adaptations and customisation for eligible vehicles and modules.
Simple pricing
Pick the level you need.
Travel outside Oxford may add a charge. You will be told the travel cost before booking.
Basic Fault Scan
£20
- Read & clear fault codes
- Basic fault scan
- Identify obvious faults
- Basic vehicle health check
- 10-minute explanation
Basic scan only. In-depth fault finding is not included.
Advanced Diagnostic
£35
- Full-system diagnostic scan
- Read & clear fault codes
- Live data monitoring
- Vehicle health report
- Battery registration included
- Service reset if required
- Up to 15 coding changes*
- 15-minute explanation
Premium Diagnostic
£50
- Full-system diagnostic scan
- Read & clear fault codes
- Live data monitoring
- Detailed vehicle health report
- Battery registration included
- Service reset if required
- Up to 30+ coding changes*
- Coding & configuration where supported
- Lighting/display customisation where supported
- Driver assistance settings where supported
- Drive/instrument cluster tweaks where supported
- Hidden features where supported
- 20-minute explanation
- Priority support
Extras & add-ons
Additional coding changes£2 each
DPF regeneration (if supported)£20
Injector coding (if supported)£20
Basic adaptations & settings£15
Comfort / module adaptations£20
Battery services
Battery replacement (fitted & tested)£15
Battery registration£12.50
Battery replacement + registration£30
* Coding and configuration options depend on the vehicle, manufacturer, year and specification.
Travel charges • outside Oxford
We come to you.
0–5 miles: No travel charge.
Over 5 miles: a travel charge applies, calculated from our base location. You will be informed of the travel cost before booking.
Additional services
Vehicle modifications & upgrades.
Alongside diagnostics and coding, ZA Diagnostics also offers professional fitting of selected vehicle upgrades and styling enhancements.
Puddle / Door Projector Lights
Premium logo projector lights professionally installed for a sharper entrance look.
LED Number Plate Lights
Upgrade to brighter, sharper LED number plate lighting on compatible vehicles.
Footwell Lighting Kits
Add custom footwell and interior ambient lighting for a more personalised cabin.
Mirror Cap Installation
Upgrade your vehicle with compatible replacement or styling mirror caps.
Spoiler Supply & Fitting
High-quality spoilers supplied and professionally fitted for the finished look.
Professional fitting. Product compatibility is checked before fitting. Ask ZA Diagnostics about your vehicle and the upgrade you have in mind.
Real work
Our work by manufacturer.
Actual ZA Diagnostics photos, grouped correctly so customers can see the vehicles and diagnostic work we cover.
BMW
Diagnostics • Coding • Fault Finding • Adaptations
BMW work
Mercedes-Benz
Diagnostics • Coding • Electrical Fault Finding
Mercedes-Benz work
Audi
Diagnostics • Coding • Configuration
Audi work
Toyota
Diagnostics • Electrical • Hybrid where supported
Toyota work
Volkswagen / Golf
Diagnostics • Fault Finding • Coding
Volkswagen / Golf work
Customer feedback
What customers say.
Real Google reviews from ZA Diagnostics customers.
★★★★★
“Really happy with the service really good explanation and checking”
★★★★★
“Excellent service from ZA Diagnostic. They were professional, knowledgeable, and quickly identified the issue with my vehicle. They explained everything clearly without any pressure and got the job done efficiently.”
Want to see more? Check the Google Business profile.
View Google reviews →
Book a mobile appointment
Tell us what the car needs.
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We'll confirm the appointment and any applicable travel charge before the visit.
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