Warning Lights That Affect MOT Test Results



The MOT test is an essential requirement for drivers in the UK. It helps maintain road safety on roadworthiness. MOT test passes when all the parts of a vehicle are in good condition. Most drivers focus on brakes, tyres and the engine, but they forget that the warning lights in a vehicle play the most important role. If the warning lights on the dashboard are overlooked, then it may result in failing the MOT test.

Modern vehicles have made the alert system easy with the help of alarming warning lights. Some lights affect the result of the MOT test. If the warning lights illuminate during the MOT test, then the car or bike might fail the test. It is necessary to understand which warning lights affect the result of an MOT test. Therefore, checking the lights early and resolving any issues helps pass the MOT test.

Importance of Warning Lights During an MOT Test

The warning lights on the dashboard highlight the problems that may affect the vehicle's emissions. MOT examiners should check the warning lights to determine whether the important parts are functioning properly.

If the warning light shows the fault in the safety parts, then the vehicle owner should take steps to solve the issues before the test. Below are some warning lights that vehicle owners should not ignore before they book an MOT test:

1: Airbag Warning Light

The airbags protect the vehicle's occupants during a collision. If the airbag warning light is illuminated while a driver is using the car, it indicates a problem with the airbag.

Here are some reasons for the problem:

  • Wiring issues
  • Fault in airbag sensors
  • Problem in the airbag control system
  • Defective seatbelt

Airbags are the main safety feature. If a warning light in the airbag system is illuminated, it may result in an MOT test failure. Solving the issues quickly may improve the chance of passing an MOT test. It also maintains the safety of the driver and passengers in the vehicle.

2: Warning Light From Engine

Another term for the engine management light is the check engine light. This is the common warning light found on the dashboard.

There are various reasons for this warning light:

  • Faults in ignition
  • Fuel system problem
  • Emission parts issues
  • Defective sensors

The illuminated engine system light is a sign that a vehicle won't meet the emission standards. Most drivers know that emissions are an important factor during an MOT. So, this warning light may be the reason for an MOT test failure. A responsible vehicle owner should check the vehicle and repair its parts before booking an MOT test.

3: Anti-lock Braking System Warning Light

ABS helps the motorists manage the speed of the car and control steering during an emergency. It lessens the risk of skidding and prevents the wheels from locking up the system entirely.

When the warning light from the ABS is seen, the system may not be working properly. Some common reasons are:

  • Problem in ABS control system modules
  • Damaged wheel speed sensors
  • Fault in the hydraulic pump
  • Defect in the wiring system

Some drivers booking an MOT Coalville appointment consider checking the warning lights to avoid unnecessary or unexpected issues. Since the Anti-lock Braking System is an essential safety system, the warning light can affect the result of the MOT test.

4: Warning Light From Electronic Stability Control

Electronic Stability Control, or ESC, helps manage the risk of skidding on slippery roads. The vehicle's wheels will start to lose control if any fault in the ESC is found. The ESC warning light indicates a serious problem in the vehicle's control system.

Some reasons are:

  • Sensor problem from steering
  • Electrical issues
  • Problem in control modules
  • Malfunction or serious faults in the sensor

The vehicle with an ESC system should work properly. The warning light may be the reason for an MOT failure.

5: Warning Light From Brake System

People should take the warning light seriously. Brakes are the safety parts of a vehicle.

Several reasons may cause the warning light:

  • Problem in the hydraulic system
  • Sensor issue
  • Damaged brake pads
  • Low braking fluid levels
  • Issues with the parking brake

MOT test results strongly focus on safety and braking efficiency. Unsolved brake-related problems may result in failing the MOT test. So, after finding the warning sign, a driver should solve the issues immediately before they fail an MOT test.

Tips to Manage Warning Light Before MOT Test

It can be a real problem if a driver ignores warning lights on the dashboard. In some cases, major faults can lead the costly repairs and a retest.

Before booking an MOT test, the car owners should:

  • Arrange a diagnostic test after seeing the warning light.
  • Solve the detected problems.
  • Allow time for repairing the vehicle parts before an MOT test and appointment.

The simple steps can decrease the risk of MOT failure and prevent retest expenses.

Conclusion

The warning lights on the dashboard are a simple reminder that the vehicle needs diagnosis. If a vehicle user ignores the major warning signs, they will fail the MOT test and increase the repair or replacement costs. Completing checks before the MOT test can solve problems, save time and money, and reduce inconvenience. Moreover, it increases the safety of the vehicle.


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