Accurate Car Diagnostics

Stop guessing. We find the real fault fast so you only fix what matters. No waste. No fear of it coming back.

Diagnostic scan in progress

What we do

We run structured tests with dealer level tools. We read live data, oil temps, adaption values and pressures. We road test with the scan tool logging results. We inspect fluid and wiring. Then we give you a clear plain English report.

This stops parts darts. It protects your wallet. It gives you proof before you spend.

Common signs

  • • Harsh or late shifts
  • • Flare or slip between gears
  • • Delay when selecting drive or reverse
  • • Gearbox or engine warning light
  • • Vibrations or shudder on light throttle
  • • Limp mode or failsafe

Why choose STA for diagnostics?

100+ yrs
Hands on skill
10,000+
Gearboxes fixed
Dealer
Level tooling
Clear
Plain report
  • • Live data and pressure checks show truth not guess work
  • • We confirm root cause before repair or rebuild
  • • Protects you from needless replacement parts
  • • Helps warranty claims and resale proof
  • • Sets a solid base for rebuild, tuning or upgrade work

How it works

  1. 1

    Call or message us

    Tell us what’s wrong. We’ll get you booked in fast.

  2. 2

    Quick first check

    We check fluids, take a test drive, and scan for faults.

  3. 3

    In-depth testing

    Live data, pressure tests, adaptions, and wiring are all checked.

  4. 4

    Clear results

    We show you the findings. You decide the next move.

Diagnostics FAQ

How long does it take?

A basic check can take thirty minutes. A deep test with data logging can take one to two hours. We tell you up front.

Can I wait?

For quick scans yes. For deep tests we may road test more than once so dropping off is best.

Will you force a repair?

No. We give facts and costed options. You stay in control.

Do you clear fault codes?

We record them first. We may clear and re test to see what returns. This proves real faults.

What if another garage already tried?

We start fresh and verify every claim. Prior work notes help but we still test from zero.

Still unsure if you need diagnostics now?

Delaying a proper test often turns a minor calibration or seal issue into a full rebuild. Three quick questions help you decide.

Are symptoms getting more frequent?

Increasing shift flare or warnings = accelerating wear. Early confirmation lets you act while the fix is cheaper.

Diagnostic laptop showing live data
Transmission components inspected

Have you already replaced parts?

If the fault persists after random part swaps you’re in the expensive trial‑and‑error loop. Structured diagnosis ends it.

Need proof before a big spend?

Our clear report + captured data builds confidence and supports any warranty claim.

Technician validating gearbox data

Ready for answers not guesses

Book a proper test today and cut risk of a bigger bill later.

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