Both rear lights cracked
 

I have noticed some moisture in my rear facelift lights, the ones on the boot lid.
It is only in the reversing light band. Today I looked at them more closely and found both lenses cracked horizontally across the reversing section.:mad:
How the hell did that happen? Seemed to have happened over winter.
I will have to remove them and see if I can seal them without it looking terrible.
Anyone seen this before.

Both mine is also cracked so need to replace them. Not sure the best "mod" to make them more water proof ;)

I'm going to try this - seems like it is like hard rubber, waterproof, stays clear and doesn't give off acetic acid or solvent fumes to damage the light...
http://www.screwfix.com/p/evo-stik-s...s-_-Sales%2520
Will work it into the crack and wipe off excess.

Yep. Mine cracked and full of water too... they were replaced only 3.5 years ago. The quality is absolutely shocking.. I don't understand how they can be so prone to failure. I see 20 year old Vauxhall Corsas on the roads with rear light clusters in better condition. Disgraceful for a high end modern car. I think the only solution is replacement... every 4 years or so.. :mad:

My 2004 had the very same cracks on the inner lights once the car was 6-7 years old. I suspect it is an issue with UV causing deterioration but it is disgraceful for such an expensive car. I intended to change all 4 rear lights for facelift ones but couldn't justify the cost of them at the time. I tried a warranty claim with Audi but they rejected it on the age of the car. They didn't get any worse if it's any conciliation.

I would recommend UV windscreen repair resin or UV optical glue (LOCA) that is used for example to glue together phone touchscreen and display. Some of them will cure just outside in daylight with the UV from sun, others need very specific wavelength UV light so you need UV light. I am using UV light for curing acrylic nails, on some resins it works very well, not so much on others, all resins I have used seem to cure outside in daylight some quickly in minutes some take hours without correct UV light.

You can apply glue, wipe off excess then take it out in daylight or under UV light to cure, then you can polish off excess if any with rubbing compound.

Add me to the cracked rear light brigade, seems to be a common thing.

i know its bit late for some of us but, I would recommend that we all should use good sealant/wax on lights when we do the car bodywork, as most decent sealant/wax have uv protection in them. jus my 2p+++