Tyre wear. Legally acceptable limit?

Kilty_2

Nilrem wrote: »

It was probably done as an advisory because a crack can get larger/worse (due to vibration/going over potholes etc), and start letting the white light from the actual bulb through, at which point you're committing an offence (white light visible at rear of vehicle, except when reversing), so they were advising you of a possible problem, which is also an automatic MOT failure if it does start allowing the unfiltered light through.
By giving you the warning they are possibly preventing you getting pulled if it does get worse but you aren't aware..

It's actually designed in such a way that it'd need a second impact to show white light - the outer lens is thick and even when you remove it completely there is still colour underneath.

Not what I was expecting. (I had it replaced the other day and dismantled the old one )

Nilrem

That sounds like an unusually well thought design:)
Most seem to just be the bare minimum to cover the bulb:)

DaveMacD

Lens repair tape is highly under-rated. Have had cause to use it on quite a few cars, and it's pretty good. In fact, I used it to rebuild most of a lamp once, and it's still going strong.