This article was in the CCC magazine and it outlines the MoT changes that are to be brought into the test on 1st January 2012:
# Steering locks not engaging when the ignition key is removed will fail.
# Engine warning lamps, brake fluid warning lamps, ESP lamps, EPB lamps illumination - if any of these are illuminated indicating a fault it will fail.
# Tyre pressure monitoring systems (TPMS) warning lamps - if illuminated indicating a fault it will fail.
# Airbag/SRS lamp illumination - If this warning lamp is illuminated it will fail.
# HID Headlamps - they will be included in the new test, and will fail if they prove to be outside of the specified conditions... but the conditions and reasons for rejections haven't been written or maybe decided yet.
# Wiring - any wiring (loomed or otherwise) that is damaged, or fitted in such a way that could cause damage to said wiring, or other systems will fail.
# Engine mountings - they will now be part of the test with Incorrect mounting, and or corrosion in a prescribed area etc will fail.
# PAS (Power assisted steering) fluid level will now be tested.
# Rear doors must open in the new test, otherwise it will fail. Currently and prior to that if the tester feels he can access the testable items in the rear (seatbelts, prescribed areas etc) without needing the doors open, then there was no need to open them.
# 13 pin tow-bar sockets - tested for correct operation using a plug in testing tool.
# Inappropriate modifications or repairs - the wording on this is quite vague at the moment, but if a major component has been modified, and that modification/repair makes the vehicle dangerous or seriously weakens the original component, expect it to fail.
# Ball joint dust covers - the small rubber boots over ball joints must be intact and free of splits, tears or holes, otherwise it fails.
# CVJ gaiters - all will now be tested, currently only the front outer CVJ gaiters are tested. This new rule extends it to inner and outer, front and rear.
# Catalytic converter - a missing converter will be a reason for failure, regardless of whether or not the emissions limits are met.
# Fuel pipe chaffing or damage - currently they only fail when they are leaking, this rule means that any chaffing or rubbing causing damage will fail.
# The braking imbalance limit - is lowered to 30% across all axles. Vehicles built post July 2010 will have to have at least 58% braking efficiency to pass (currently it's 50% for a dual circuit braking system)
# Batteries - insecure batteries will become a failure
# Light switches - all light switches must operate the corresponding lights immediately. No tapping or wiggling to make it work! The main beam warning lamp must illuminate with the main beam lamps


