View Full Version : S4 Bumper Headaches

05-12-2012, 02:52 AM
So I picked up a pretty beat up S4 bumper yesterday and getting it painted tomorrow so been working on that all night. Thought you guys might like to see its transition.

How I picked it up, it hit a pole, so the crash bar was bent and the entire bumper looked like a W with a couple chunks missing.


Crash bar removed.

Huge missing chunk, 6" x 3" pretty much

Plastic welded, did it in two pieces to get the body lines.

All the holes plastic welded up

Bottom cracks welded up
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-prn1/527603_10151700992815576_571855575_23939220_207785 8839_n.jpg

Quick spray to see what needs to be more filled and what needed to be shaved more, and thats how she sits right now. Going to wake up in a couple hours and continue sanding/filling

05-12-2012, 06:17 AM
I hope you got that thing for free! but it seems your bringing back to life.

murdered APR a4
05-12-2012, 06:30 AM
X2 or at least very cheap, would suck to put all that effort into something and have to paint it as well if you paid a lot for it. All in all great work though!!

05-12-2012, 06:39 AM
Very nice work!

05-12-2012, 06:39 AM
Good skills involved, will look grear once pinished and painted.

What color is your A4?

05-12-2012, 07:12 AM
what are you using for plastic welding?

05-12-2012, 07:32 AM
Looking good man! Filler plate shave happening too right?

05-12-2012, 07:34 AM
Who's painting it?

05-12-2012, 08:53 AM
There's a local plastic store in Seattle called Taps Plastics that I bought pure ABS sheets in 3/32" thickness that I cut up to patch the holes. A buddy if mine that works in the auto paint industry that painted my previous pearl white s4 front is painting it for me and the car colors Y1T aka melange. I wish I was filling the filler plate but I don't have the proper abs plastic sheet or a filler plate to do so :(

05-12-2012, 08:54 AM
Looks good so far. I need to get me an s4 bumper.

Avant Nate
05-12-2012, 12:27 PM
I thought you might have bought that red S4 bumper that was on Craigslist, but this one seems a little worse. But good job.

05-12-2012, 02:27 PM
You still have the skirts you picked up for the 01?

05-12-2012, 03:32 PM
I thought you might have bought that red S4 bumper that was on Craigslist, but this one seems a little worse. But good job.

No Jordan picked that up (thatA4)

@Needing: I wish, I sold those off a while ago, but made a crap ton of money off of them so I can't complain. Need to source some S4 skirts and lower door mouldings now to tie everything together. The bumper and fender just got painted and waiting on it to dry so I can wet sand and polish then let them sit over night and package them up to ship out tomorrow when I fly back to denver.

https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash3/574787_10151703669015576_571855575_23949883_828216 681_n.jpg

05-13-2012, 09:21 AM
All in a matter of 24 (eh close to 36 hours) I bought a wrecked bumper and had it painted:

Finished product:

https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash3/558481_10151704700260576_571855575_23954107_177115 5240_n.jpg

05-13-2012, 09:39 AM
the bumper is the easy part, the tricky part is finding one that has not been modded and has all the grills.

05-13-2012, 10:49 AM

05-13-2012, 11:15 AM
wow - that thing looks mint

05-14-2012, 07:11 AM
Impressive work with the ABS welding! Props to you for having the confidence and vision to try this, I would have thrown that thing in a fuckin dumpster lol

05-14-2012, 12:24 PM
So my friend who painted this for me, painted this in WA while the car was in CO, looked at pictures of my car on a color calibrated screen (he hobbies as a photographer, and I freelance as a photographer so we both have the eye for color and the proper monitors calibrated) but he looked at pictures to color match my car and it came out perfect. Props to him

https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash3/538742_10151711555895576_571855575_23983718_116797 1737_n.jpg

Some of the stuff he has painted:

Root Beer Pearl S2k, supercharged (his personal car, got stolen last year though)

Repainted the Root Beer Pearl to Lexus Pearl White for his wedding
https://fbcdn-sphotos-a.akamaihd.net/hphotos-ak-ash4/198649_10150259745927218_511977217_7797646_2204871 _n.jpg

His Orange Copper Vulcan (originally bought as black, turned this color, then candy apple green)


05-15-2012, 12:41 PM
must be nice to have a friend like that who will paint for very cheap if not free

05-15-2012, 07:48 PM
must be nice to have a friend like that who will paint for very cheap if not free

it is quite nice, I usually just buy him lunch while we're working and do all the prep work and he mixes the paint for free and shoots it for free. Works at a Sherwin Williams Automotive paint place

05-16-2012, 08:29 AM
I'm attempting the same thing right now with an S4 bumper I got last year that had been damaged. How do you "weld" plastic? I was going to epoxy some abs plastic underneath the holes and behind the cracks to strengthen it and then use the 3M plastic repair kit to fill in the holes and smooth them over with sand paper.

BTW: You did a great job on your project! It looks awesome. I hope mine turns out like that.

05-16-2012, 10:55 AM
good writeup regarding plastic welding.

Basically you buy pure abs plastic or take the washer caps and cut them up to use them as filler for the plastic and use a soldering gun

but here's the writeup


05-16-2012, 11:02 AM
Thanks geeky, much appreciated.