help with bmw

That's pretty nasty...I'd probably be thinking about AutoInt/ValuGard's Exterior Trim Restoration II kit ("ETR II").



If that's not an option, I'd first scrub it with a "bug sponge" soaked in IPA. Then hit it with repeated passes of Hi-Temp's Heavy Cut (aka "357") on an orange cutting pad. That product is OK for use on trim IME. Wipe clean with more IPA or Griot's Rubber Prep. See if that gets it OK. If so either KAIO + Collinite 845 or something like Ultima's trim sealant. If not, then refinish with the ETR II.



If you're gonna use the dressing (aka "slime" ;) ) approach, I'd use Autoglym's Bumper Care, a *GREAT* product that gets virtually zero attention in the US.



FWIW, the trim on my Tahoe was that bad when I got it. I used the Hi-Temp/IPA to strip the top "dead layer" off, and then dressed with the Bumper Care for a while. After maybe a year or so, I cleaned it with Griot's Rubber Prep and since then (it's been a few years now) I've just been treating it with ValuGard's Fast Finish. Looks like brand-new and stays that way when the vehicle really needs detailed. The repeated use of the Bumper Care somehow revitalized it and the Fast Finish is working out perfectly.
 
i think it needs that Valugard ETR (Exterior Trim Repair) Kit where can i get some of that? whats weird is like some of the bumper is smooth and then the bad parts are rough will it fix that or just restore the color and protection?
 
Knowing the older BMW rubber parts, sand them first.

The kit is available at valugard.net.

On the site is a training video on how to apply it.

That said, it does not show what to do if the surface is so oxidized it is "rough to the touch", so sand it down to an even surface, reclean with the supplied New Car Prep solvent and apply as per directions. and
 
Awesome Ron thanks for the advice. what grit sand paper would you recomend? i have tons of 220 but iam thinking i might need something finer any advice on that?
 
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