Preserve the warning context
Include the exact AdBlue or SCR message, any displayed countdown and earlier fault reports. Say what changed after top-ups or repairs. The complete history is more useful than an assumption about one sensor.
Agree what should be investigated
An SCR concern is a diagnostic brief. A routine dyno measurement does not automatically include the checks needed to explain it. Describe the warning before asking about remapping or a power run.
Plan the vehicle and journey
Send the registration, engine, drivetrain and previous tuning. Swansea, Llanelli and Ammanford customers can confirm the work and appointment before travelling to the workshop.
Read the test-selection guide if you also want measurement. Send an AdBlue diagnostic enquiry with the warning history first.
Mobile Stage 1 and ECU solutions, or workshop chassis dyno tuning