Q #621 - Why do MOT tests include a strict exhaust emission test?
Emission tests are carried out to make sure your vehicle's engine is operating efficiently. This ensures the pollution produced by the engine is kept to a minimum. If your vehicle isn't serviced regularly, it may fail the annual MOT test.
To recover the cost of expensive garage equipment
To help protect the environment against pollution
To discover which fuel supplier is used the most
To make sure diesel and petrol engines emit the same fumes
