It’s worth a punt, if nothing else it’s an opportunity to see if there’s anything else they pick up but don’t be surprised if they spot it.
Should be, plus let's more water in, best get it welded up, trouble is if bodge it with fresh underseal they will probably poke around more.
It sounds like it might be within 30cm of a suspension or seat belt anchor so probably a fail. I like Mk2daz above to get you passed and then fix it properly over the coming year.
Get a picture up. Could drill it out, and put a blank cap in it and say it's a waxoyl injection point.
Car is currently languishing at my mum's house but will grab some photos when I'm up there prepping it this weekend. From memory it's in the middle of rear door bottom where the rubber door seal sits on the seam. Hopefully remote enough from the important bits. Top idea @Mk2daz! When I first spotted it a while back I sanded back to bare metal and painted it with some gunky stuff I had to hand. I know it's not a real solution but hopefully gives me a bit more time to get it properly chopped out and repaired. Elsewhere the car has suffered from the dreaded rotting sunroof drain channels so the front floor is a bit of a patchwork of MIG by what looks like have-a-go-heroes but is generally solid. Plan is to get it through the MOT then address as mentioned in suggestions above - albeit as a rolling resto Think I should bother putting the carpets back in or instead tidy it up so it looks like I have a plan and not trying to sneak a rotbox through? Photos to come after the weekend. Thanks for the advice so far.
If you are on good terms with your MOT man it shouldn’t be an issue should it? Alternatively, stick a piece of tape over it. MOTers can only do a visual check and are not allowed to peel or poke about so they won’t see the hole. As said above, it needs fixing but you know that ………
I'm definitely guilty (and/or proud!?) of using aluminium tape to cover over rusty arches to get through an MOT - it's metal, right!?
See below for the professional repair conducted this weekend. I had limited time and materials but I did have the foresight to order some Oak Green paint to help... Didn't grab a photo with the seal back in place but doesn't look horrendous - although it feels dirty. Poor old thing needs some new metal on the floor too. Still goes well though - I gave it a run on some ... private roads to clean the brakes up and clear the cobwebs
if it makes you feel better around 10 years ago I glued a bit of metal at the top of my rear inner arch over a small rust hole with some por patch. still there, no-one is any the wiser
What about covering it with one of those kick plates that most cars have nowadays? https://www.ebay.co.uk/itm/VW-Golf-...2349624.m46890.l49286&mkrid=710-127635-2958-0 Then if he fails it just weld them in. Job done!
That will get you through the MOT. Sometimes we have to do what we can - I've often considered JB weld for some tight spots and even tested on a bit of metal i left out in the garden - strong bond still to this day. It is worth getting a 2nd hand cheap but decent welder, some argon c02 mix gas, 8mm weld wire, metal cutting and flaring tools and having a practice off the car. You'll find the welding part is pretty easy but the shaping of metal is the tricky part that takes forever. I once paid £300 for a patch on my floorpan and realised I could not go on like that. I don't attempt stuff that is structural or on show (yet). Once you've mastered that part it will be good to master what products you put on top of the completed job - MOT style outfits just spray black underseal over but that will only last 5 mins in our climate.
