From the Workshop

Understanding what to check, when to check it, and why it matters — from water systems and gas safety through to engine fluid management and seasonal preparation.

Fault codes provide a starting point, not a definitive answer. This article explains how OBD-II diagnostics work, what different code categories indicate, and how technicians use live data to reach an accurate diagnosis.

With so many garages and independent workshops available, choosing the right one is not always straightforward. This guide covers the factors worth considering and the signs to look for.