All Things Mk5 > How to Guides / Troubleshooting

Rust on sills

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rubdub:
Cheers for the advice fellas!

Yeah think I might just loosen the sideskirts and try do it that way with the arches off. I heard they can be a right ball ache to remove old adhesive and refit!

Think I might have some of those little drill brush attachments in the shed as it happens!

  :happy2:

pudding:
The sill had actually rusted through on mine, just by the rear wheel.  Seems a common place for them to go, also on the MK6 as well.  And no doubt the MK7 as VW appear to have done nothing to prevent this problem through the years.  My MK4s went there as well  :grin:

Removing the side skirt isn't too bad but removing the old adhesive is a pain.  Get yourself a toffee/caramel wheel from Amazon which makes light work of it.

When it comes to sticking the skirts back on, get this stuff specifically.  Cheaper stuff just comes unstuck soon after.  Don't ask how I know  :grin:

https://www.amazon.co.uk/gp/product/B01DVWCXWG/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1

It can be a pain getting the skirts back on, but pay particular attention to the rear arch.  Make sure that end fits flush to the bodywork before pulling the backing tape.  If that end doesn't fit flush, it won't go well.  Hard to explain, but hopefully it will become clear when you do it  :happy2:





rubdub:
Ah cheers for that tip Pudding! Had never thought about one of those wheels, deadly!

Yeah was originally hoping just to peel back the ends where I noticed the bubbling. But now I've noticed some more right in the middle 🤦‍♂️

pudding:
I'm afraid to say, if you see bubbling above the sill cover, it WILL have spread under the paint behind the cover as well.

In hindsight, I would have saved up and let a bodyshop do it.  Mainly because rattle can paint is NOWHERE near as tough as proper bodyshop stuff, and neither is DIY preparation unfortunately, which is key to preventing it coming back.

Thing is though, DIY repairs are fine to eek a few more years out of the old girl but if you want it gone for good, I'd recommend letting the pros do it because it's virtually impossible to get the finish right on that thick rubbery paint VW use.

rubdub:
Totally agree.. and I suppose that is the plan for possibly next year as I've a feeling the arches are starting to go. But  I have an old mini which is cleaning  out my bank account with new panels, welding and paint this year 😂

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