Will My Car Fail MOT with Engine Light On?
Introduction
The MOT (Ministry of Transport) test is a mandatory annual safety inspection for cars in the United Kingdom. The test checks a variety of aspects of the car, including the engine, brakes, tyres, and lights. If any of these components are found to be below the required standard, the car will fail the MOT and will not be allowed to be driven on the road.
One of the most common reasons for a car to fail the MOT is a problem with the engine. This can be anything from a minor fault to a major problem. If the engine light is on, it is a sign that there is a problem with the engine that needs to be investigated.
When Will My Car Fail MOT with Engine Light On?
There are a number of different reasons why the engine light may come on. Some of these reasons are more serious than others. The following are some of the most common reasons why the engine light may come on:
- Loose gas cap
- Faulty oxygen sensor
- Spark plug or wire problems
- Mass airflow sensor issues
- Catalytic converter problems
- Engine control module (ECM) issues
If the engine light is on, it is important to have the car inspected by a qualified mechanic as soon as possible. The mechanic will be able to diagnose the problem and recommend the necessary repairs.
Some of the above problems may cause your car to fail its MOT. For example, a faulty oxygen sensor can cause the car to emit excessive emissions, which will result in a fail.
Can I Drive with the Engine Light On?
If the engine light is on, it is generally not advisable to drive the car. This is because the problem that is causing the light to come on could potentially make the car unsafe to drive. For example, if the engine light is on due to a problem with the brakes, the car could be at risk of a brake failure.
However, there are some cases where it is safe to drive with the engine light on. For example, if the light is on due to a loose gas cap, it is generally safe to drive the car to a petrol station and tighten the cap.
If you are unsure whether or not it is safe to drive with the engine light on, it is best to err on the side of caution and have the car inspected by a mechanic.
Conclusion
If the engine light is on, it is important to have the car inspected by a qualified mechanic as soon as possible. The mechanic will be able to diagnose the problem and recommend the necessary repairs.
Most problems that cause the engine light to come on will not cause your car to fail its MOT. However, there are a few problems that can cause a fail, such as a faulty oxygen sensor.
If you are unsure whether or not it is safe to drive with the engine light on, it is best to err on the side of caution and have the car inspected by a mechanic.
