Have you recently switched from a conventional fuel vehicle to an electric or hybrid one? For first-time electric or hybrid car owners, the MOT can be a challenging switch. The test for conventional vehicles differs from these variants in several key aspects. However, there are also a few differences between MOTs for hybrid and electric vehicles. In this article, you can find out the major aspects that differentiate a test for an electric vehicle, and that for a hybrid one. This guide will help you gain a clear insight into the testing methods, so you can make your sustainable switch with more confidence.

What is the MOT test?

An annual test to check your vehicle’s safety and emissions standards is the MOT. The test was introduced as a basic inspection of the vehicles; however, it evolved into a comprehensive check of around 20 major components of a vehicle. For conventional fuel-powered vehicles, the emissions test is an important aspect of the MOT. However, for electric vehicles, the exhaust emissions test is not included. On the other hand, a hybrid vehicle uses an Internal Combustion Engine too; hence, it requires an emissions check. Find out below, the major differences in MOT requirements for an EV and a hybrid vehicle.

EV vs. Hybrid vehicle MOT: What are the differences?

A major point of difference between an EV and a hybrid vehicle is their distinct powertrain systems. This leads to varying MOT requirements, with a few similarities too. The following is a list of differences between the testing of an EV and a hybrid vehicle:

Exhaust Emissions

As mentioned above, exhaust emissions are a major testing point for fuel-powered vehicles (petrol and diesel cars). Hybrid vehicles also have a combustion engine besides their electric motor. Hence, for them, the MOT would include testing the exhaust system for emission levels. On the other hand, fully electric vehicles run completely on the battery and do not produce exhaust emissions. Hence, this inspection is irrelevant for EVs.

Fuel Systems

The MOT checks for the fuel system of the hybrid vehicles will be similar to those of traditional cars. The standard protocols for inspecting the fuel system of petrol and diesel engines will apply to the hybrids, too. However, EVs do not have a fuel system; rather, they have a major battery system. For them, the test will include inspections for the integrity and security of the battery system and any potential leakages in them.

Battery and Electrical Systems

The battery and electrical systems are especially significant in EVs. Since the battery is the only source of power for EVs, it should be in secure condition with no leakages. The high-voltage wiring should have no damage or leaks to ensure a successful MOT. For hybrids, the conventional engine components are also tested, along with the battery.

Noise

When compared to traditional cars, both EVs and hybrid vehicles are quieter. However, when the petrol or diesel engine is in operation in the hybrids, there could be some noise. Hence, the tester will inspect the noise levels to ensure that there is no excessive noise generation.

Braking Systems

The basic principles of the braking system remain the same for EVs, hybrids, as well as conventional vehicles. EVs, however, have a regenerative braking system to regain energy as the vehicle slows down. The MOT ensures that the regenerative braking systems, as well as the standard brakes, are functioning properly.

General Inspections

The standard MOT checks apply for both EVs and hybrid vehicles. This includes tyres, lights, mirrors, windscreen wipers, horns, seatbelts, and other essential components. Besides, the vehicle registration number and the number plate are also similar for both tests.

How to choose a garage for MOT testing of hybrid vehicles?

Most electric and hybrid car owners often wonder whether a garage needs to specialise in the MOT and servicing for their vehicles. These vehicle types are vastly different from the traditional combustion engine vehicles. Hence, their service and testing require special training and skills. Here are some areas of specialisation that you should look for while searching for a garage for your hybrid vehicle:

• Battery handling: EVs and hybrid vehicles have a distinct battery from standard car types. They are usually high-voltage units and require special handling. Hence, their removal or replacement needs efficient handling skills to avoid injury or damage. Ensure your garage offers this expertise. 
• Complex electrical system: Intricate and high-voltage electrical systems of the hybrids require appropriate handling training too. These components can be dangerous if mishandled, increasing the risk of electric shocks. 
• Software: The software of EVs and hybrids is much more advanced than that of a conventional vehicle. They require specialist equipment and knowledge for accurate diagnostics. 
• Braking system: EVs use a regenerative braking system instead of the traditional one in fuel vehicles. These systems are complex and challenging to work on without appropriate skills.

Choose your garage carefully for accurate MOT testing and servicing for your vehicle. Follow this guide to recognise the differences between testing of the different vehicle types. Learn how to choose the right garage for hybrid vehicle testing and maintenance. Service your hybrid vehicle regularly for a successful MOT in Holmes Chapel.