The Role of Intelligent Driver Assistance Systems (ADAS) in MOT Tests

Modern vehicles are increasingly equipped with Intelligent Driver Assistance Systems (ADAS), such as lane departure warnings, adaptive cruise control, and automatic emergency braking. These technologies play a vital role in enhancing road safety, reducing accidents, and supporting drivers with real-time assistance. But how do they affect an MOT test in the UK?

In this article, we’ll break down the role of ADAS in MOT inspections, current rules, and what drivers should know before their next test.

What Are Intelligent Driver Assistance Systems (ADAS)?

ADAS refers to a suite of advanced technologies designed to assist drivers and improve vehicle safety. Examples include:

• Lane keeping assistance
• Traffic sign recognition
• Blind spot monitoring
• Adaptive cruise control
• Autonomous emergency braking (AEB)

While these systems do not replace driver responsibility, they provide valuable support that helps reduce accidents and improve driving confidence.

Are ADAS Systems Checked in MOT Tests?

Currently, most ADAS features are not directly tested in a standard MOT. The MOT primarily checks essential safety aspects like brakes, tyres, emissions, lights, and steering. However, if a dashboard warning light related to an ADAS feature (such as AEB or lane assistance) is illuminated, it could result in a failure if it’s considered a safety-critical fault.

For example:

• If an airbag warning light is on, it’s an automatic MOT fail.
• If an ADAS warning light suggests the system is malfunctioning, the tester may classify it as a fault depending on its impact on road safety.

Why ADAS Matters for Road Safety and MOT Compliance

Although not all ADAS functions are tested during MOTs, they are still crucial for maintaining a safe and roadworthy vehicle. A malfunctioning system can:

• Increase accident risks by reducing driver awareness.
• Lead to higher repair costs if issues are ignored.
• Impact resale value, as buyers often prefer vehicles with fully functioning ADAS features.

As vehicles become more technologically advanced, MOT regulations may adapt to include more specific checks on ADAS systems.

Preparing Your Car with ADAS for an MOT

If your car is fitted with ADAS, here are some steps to ensure a smooth MOT test:

• Check for warning lights on your dashboard before the test.
• Have sensors and cameras calibrated if you’ve had windscreen, bumper, or wheel alignment work done.
• Schedule regular servicing to ensure ADAS features remain in proper working order.

This proactive approach not only supports MOT compliance but also keeps your car safer on the road.

The Future of ADAS in MOT Tests

As ADAS becomes standard in more vehicles, it is likely that MOT inspections will evolve to include formal checks for these systems. This could involve diagnostic scans or functionality tests to ensure that advanced safety technologies are working as intended.

Final Thoughts

While ADAS features are not yet a major focus in MOT tests, they play a critical role in keeping drivers, passengers, and pedestrians safe. Ensuring these systems are maintained and fully operational can prevent costly failures and improve overall vehicle reliability.

To stay informed about MOT rules and check your vehicle’s history, visit CheckMOT.com.