On Thu, Dec 5, 2019 at 10:51 AM John H. Lauterbach <john@jhl.mgacoxmail.com>
wrote:

> Thank you, David. If the nuts are welded to the door frame, would it
> better to retap the nuts, possibly with the next larger (or use English
> instead of metric). The screw in question dose not look like the threads
> are intact. Do you know where I can get replacement screws?
>

The screw is M8x40, class 8.8.  VAG p/n N  0331881 -- also used in
Eurovans, so try the dealer.  Otherwise your local fastener supplier ought
to have or be able to get it.

If the nut thread is buggered I think putting in a Time-sert might be the
best option, because there's not much meat there and the Time-sert along
with other potential advantages is slightly smaller outside diameter than a
Helicoil.  Unfortunately it's $85 or so to try it, but you get several
inserts in the kit and M8x1.25 is used all over the van (it's the moral
equivalent of 5/16-18).  https://www.amazon.com/dp/B01MSPN7NH

Yrs,
d

>
> John
>
> On Thu, 2019-12-05 at 10:27 -0500, David Beierl wrote:
>
> It is not clear from the diagrams in Bentley if these screws have nuts
> behind them or go into tapped
> holes in the door frame.  If they go into holes that are trapped, what is
> the procedure for repairing the threads.
>
>
> I believe they are nuts welded to the inside of the sheet metal.  Access
> is difficult.  I'd suggest cleaning the hole and trying some Loctite 242
> (blue, though it may be in a red bottle) on the threads.
>
> Yrs,
> d
>
>