Rear bumper advice please

urquattr085 · 08-10-17, 09:42 PM

Hi all,

Removed the rear bumper from my ur yesterday ready for a bit of a tidy up.

Inevitably a couple of fixings snapped

- where the bumper is fixed in the rear wheelarch (M5 cap head screws that fix into a threaded insert - part no. N 030 355 1).

I know the inserts are available online, does anyone have any advice on removing the old ones? Just a matter of drilling out the remains of the bolt and pulling the old insert out?

Any knowledge out there would be greatly appreciated, thanks in advance.

vagdream · 09-10-17, 07:43 AM

I used a Dremel with a mini cut off disc and chopped it off from the inside lip of the wing.

Colin Aitchison · 09-10-17, 08:04 AM

There was very little good metal left on my Ur that I had to weld in a new metal strip, drilled holes to suit the inserts and new screw fixings.

urquattr085 · 09-10-17, 05:53 PM

Thanks guys.
I need to have another look (it was getting dark when I finished on Saturday) but I didn't see how I could get at the threaded fixings, they seemed to be enclosed within the lower rear arch.

sinbin5t · 09-10-17, 06:20 PM

They will be riv-nut type fixings, if you just drill them out you may end up with a hole that's too big, do you have a Dremel ? if so just carefuly take the front face off then remove from behind, that way you can use the existing hole for the replacement riv-nut (or captive nut if you prefer) and it will be as good as the old one's were when they were new.

urquattr085 · 09-10-17, 07:52 PM

Thanks mate, all kind of makes sense.
Obviously need to get a good look in decent light.

sinbin5t · 09-10-17, 08:24 PM

Quote:

Originally Posted by urquattr085

Thanks mate, all kind of makes sense.
Obviously need to get a good look in decent light.

Let me know how you get on.
Just a though, you could carefully drill whats left of the bolt out and then run a tap through the existing fixings to clean the threads up, that could be an easier way to sort it perhaps.

urquattr085 · 09-10-17, 09:20 PM

That was going to be my 1st approach and then see if I need to pull the inserts, iirc I have 4 to do

sinbin5t · 10-10-17, 01:50 PM

Quote:

Originally Posted by urquattr085

That was going to be my 1st approach and then see if I need to pull the inserts, iirc I have 4 to do

Go for it, shouldn't take long hopefuly then it's big grins for you.

urquattr085 · 10-10-17, 05:43 PM

Cheers, will let you know how I get on. Might be a couple of weeks before I get to it though.

09-10-17, 05:53 PM	#4
urquattr085 Senior Member Classic Audi Club Member Join Date: May 2016 Location: Displaced Northerner in Essex Posts: 1,528	Thanks guys. I need to have another look (it was getting dark when I finished on Saturday) but I didn't see how I could get at the threaded fixings, they seemed to be enclosed within the lower rear arch. __________________ 1985 WR quattro 2010 A6 3.0Tdi Allroad 2010 A3 1.4 tfsi Sport - Sold but still in the family 1984 80 Quattro - Sold many moons ago 1981 Coupe GT - Sold to buy above

09-10-17, 07:52 PM	#6
urquattr085 Senior Member Classic Audi Club Member Join Date: May 2016 Location: Displaced Northerner in Essex Posts: 1,528	Thanks mate, all kind of makes sense. Obviously need to get a good look in decent light. __________________ 1985 WR quattro 2010 A6 3.0Tdi Allroad 2010 A3 1.4 tfsi Sport - Sold but still in the family 1984 80 Quattro - Sold many moons ago 1981 Coupe GT - Sold to buy above

09-10-17, 09:20 PM	#8
urquattr085 Senior Member Classic Audi Club Member Join Date: May 2016 Location: Displaced Northerner in Essex Posts: 1,528	That was going to be my 1st approach and then see if I need to pull the inserts, iirc I have 4 to do __________________ 1985 WR quattro 2010 A6 3.0Tdi Allroad 2010 A3 1.4 tfsi Sport - Sold but still in the family 1984 80 Quattro - Sold many moons ago 1981 Coupe GT - Sold to buy above

10-10-17, 05:43 PM	#10
urquattr085 Senior Member Classic Audi Club Member Join Date: May 2016 Location: Displaced Northerner in Essex Posts: 1,528	Cheers, will let you know how I get on. Might be a couple of weeks before I get to it though. __________________ 1985 WR quattro 2010 A6 3.0Tdi Allroad 2010 A3 1.4 tfsi Sport - Sold but still in the family 1984 80 Quattro - Sold many moons ago 1981 Coupe GT - Sold to buy above

09-10-17, 07:43 AM	#2
vagdream Grown up member Join Date: Jul 2015 Location: Llandudno Junction Posts: 165	I used a Dremel with a mini cut off disc and chopped it off from the inside lip of the wing.

09-10-17, 08:04 AM	#3
Colin Aitchison Senior Member Classic Audi Club Member Join Date: Dec 2013 Location: Back home in Tillicoultry Posts: 1,308	There was very little good metal left on my Ur that I had to weld in a new metal strip, drilled holes to suit the inserts and new screw fixings.

09-10-17, 06:20 PM	#5
sinbin5t 4 ring whore! Classic Audi Club Member Join Date: Jan 2010 Location: Where a spike points skywards Posts: 12,960	They will be riv-nut type fixings, if you just drill them out you may end up with a hole that's too big, do you have a Dremel ? if so just carefuly take the front face off then remove from behind, that way you can use the existing hole for the replacement riv-nut (or captive nut if you prefer) and it will be as good as the old one's were when they were new.