The MOT test will officially change from Sunday 20 May 2018.

The old-style “pass or fail” test is being replaced with a new MOT system that will classify faults as minor, major and dangerous, with the last two resulting in an automatic failure.

The cars that will be most affected by these regulations are diesel cars from 2006 onwards, - models that came with a DPF to clean up emissions. Any car that does not have a DPF or if it appears to be damaged or tampered with will result in an automatic fail.

Oddly, older cars, often more polluting cars built before 2006 will see no change as they will be tested as they are now, without any changes.

Other important things you need to know on the MOT changes from the DVSA:

  • Diesel cars will also have to meet strict new rules to pass their MoT: any car fitted with a diesel particulate filter (DPF) that emits “visible smoke of any colour” during metered tests will get a Major fault, and automatically fail its MoT.
  • New emission control equipment to be introduced to measure defects.
  • Vehicles will be checked for fluid leaks posing an environmental risk.
  • Cars first used after March 2018 will have their daytime running lights and front fog lights inspected.
  • New checks to see if DPF has been removed or tampered with, and must refuse to test any car with the DPF cut open and re-welded.
  • New categories of faults: Minor, Major and Dangerous.

To know more about the changes that are happening, directly from the DVSA head over to: