Fully armed and
Join Date: Sep 2015
Location: United Kingdom
MOT is fine, at the end of the day the 159 has projector lenses as standard, just that the later variants had auto leveling and washers. Basically HIDS work in all 159s because the lenses have a sharp cut off and are projectors so you wont blind anyone and the light wont scatter as bad as a reflector lens, hence why it is actually seen as an upgrade, not just for aesthetic reasons.
Just get one from 4500k to 6500k max and you won't have problems. I once failed an MOT due to my halogens being soo old that they had gone a weird shade of 'green' apparently.
I've got LEDs as highs which was a pain to install and probs not really legal due to light dispersion but they are brighter and I have greater visibility with them that with halogens highs, as long as you turn them off when another car approaches you are all good. It's the newer modern cars with auto high beams that get me to be honest, when they don't register to turn off until you are already within 50m and then its almost a surprise to see where the car is on the road.
If you want to be 100% legal, squeaky clean, a good law abiding upstanding citizen, then you'd need to retro fit the Xenon Bosch projectors, and find a bumper with the washer jets in them.