Key statistics. Approximately 21.7% of all MOT tests in the UK result in a failure. (DVSA, 2024). Around one in three cars fails its MOT on the first attempt. (DVSA/Industry data, 2024-2026).
For UK drivers, Carvy generally stands out as the best choice due to its AI-powered diagnostics, comprehensive UK-specific guidance, and focus on preventative maintenance, offering a more tailored and intuitive experience than FIXD or Carly for navigating British road regulations and common vehicle issues.
What exactly do these diagnostic apps do for UK drivers?
These diagnostic apps connect to your car's On-Board Diagnostics II (OBD-II) port, typically found under the dashboard, to read error codes and provide insights into your vehicle's health. They translate complex technical information into understandable language, helping you identify potential issues like a P0300
Most petrol cars sold in the UK since 2001 and diesel cars since 2004 are equipped with an OBD2 port, making them compatible with diagnostic apps for generic engine codes. Yes, by allowing you to identify problems and sometimes clear codes yourself, a diagnostic app can potentially help you avoid unnecessary garage visits or be better informed before repairs, saving you money. Many advanced car diagnostic apps, such as Carly, require an annual subscription to access their full range of features, including advanced diagnostics, coding, and live data. The scanner hardware is often included with the subscription.Frequently Asked Questions
Do car diagnostic apps work on all UK cars?
Can a car diagnostic app save me money?
Are car diagnostic apps subscription-based?
