On 20 May 2018, new rules will apply to the MOT test, brought about by EU Directive EC 2014/45. While it would be impractical to list every change here, we will try to help you understand some of the changes which may affect your vehicle.*
The new, stricter limits for diesel emissions have caused a lot of discussion. So, what are the new fail criteria? They include:
- evidence a diesel particulate filter (DPF) has been tampered with
- visible smoke – of any colour – where a DPF is fitted
- emissions tests which don’t meet the required limits:
Vehicle first used Type Limit First used before July 2008 Non-turbo 2.5m-1 or plate value if lower Turbo 3.0m-1 or plate value if lower First used on or after 1 July 2008 All diesels 1.5m-1 or plate value if lower First used on or after 1 January 2014 All diesels 0.7m-1 or plate value if lower
Plate value may be found in the bottom right corner of the manufacturer’s plate, usually in a box.
We’ll also be looking for:
- insecure noise suppression material
- induction (air intake) leaks which could affect emissions.
Lights have also been a popular subject of conversation. New reasons for a failure on lights are:
- where existing halogen headlamp units have been converted for HID bulbs
- daytime running lamps not working where fitted as standard on vehicles first used from 1 March 2018
- front fog lights inoperative on vehicles first used from 1 March 2018
- reverse lights inoperative on vehicles first used from 1 September 2009
- headlamp washers, where fitted, on vehicles with HID headlamps and first used from 1 September 2009. (On non-HID headlamps, it would be an advisory.)
And on the dashboard, we’ll now check that these lights are operating as they should:
- engine malfunction indicator (engine management) light
- brake lining or pad wear light
- tyre pressure monitoring system (TPMS) lights on vehicles first used from 1 January 2012.
Brakes, wheels and suspension
New fail items in these categories include:
- incorrectly fitted brake pad, lining or slack adjuster
- brake disc or drum missing
- braking system components damaged or corroded
- air brake drain device inoperative or not working correctly
- brake fluid contaminated
- ABS removed or disabled on vehicles first used from 1 January 2012
- TPMS obviously inoperative
- a missing spring on a vehicle modified to run on bump stops.
Body, interior and windows
There are a number of new rules relating to corrosion, body structure and steering systems. Additionally, we will now check for:
- excessively tinted window glass – this could be an advise or a fail, depending on how dark it is
- tank shield or exhaust shield missing where fitted as original equipment
- any part of an LPG/CNG/LNG or hydrogen system that is defective
- an insecure bumper that is likely to become detached
- an insecure externally-mounted spare wheel carrier
- insecure or defective seats
- seatbelts not operating as they should.
* The list above does not detail every aspect of the MOT test changes. Please get in touch with us if you have any specific queries.