Rear Bumper Impact Strip Install: Any Tips? - Mercedes-Benz Forum
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#1 (permalink) Old 02-12-2007, 02:22 PM
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Rear Bumper Impact Strip Install: Any Tips?

In the continuing saga of cosmetic rehab on my 84 300TD, I'm having trouble getting the rear bumper impact strip installed. I thought this would be easy, but noooo...

It's essentially two mounting brackets that snap onto the bumper with a grooved rubber strip on the back of the impact strip itself.

What's so frustrating is that the rubber strip takes an amazing amount of force to slide on or, when I tried to just snap it over the grooves, it's just not pliable enough. Oh and then getting it aligned...

I don't want to break the brackets forcing this on, so any tips appreciated.

Thanks!
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#2 (permalink) Old 02-12-2007, 06:59 PM
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Lubricate with glycerol or dilute soap
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#3 (permalink) Old 02-12-2007, 08:06 PM
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Spray hairspray on the backside of the rubber as you push it on but work fast.

Surely everyone remembers this trick from when they owned bicycles and putting on the handgrips

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#4 (permalink) Old 02-12-2007, 08:12 PM
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yeah grease it up wd-40 then the tabs on the backside slide from left to right to lock the rubber bumper in place. I used a flat piece of wood and a rubber mallet to knock the the rubber knubs on the inside of the bumper into the locked position...
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#5 (permalink) Old 02-12-2007, 08:28 PM
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WD40 will ruin the rubber

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#6 (permalink) Old 02-12-2007, 08:33 PM
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ok dont use wd-40...good to know...I dont know what i used last time but I could have used wd-40...
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#7 (permalink) Old 02-12-2007, 08:34 PM
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and from what i can remember i think the tabs on the inside of the bumper are plastic and not rubber...not 100% sure
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#8 (permalink) Old 02-12-2007, 08:39 PM
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Quote:
Originally Posted by panamacolin
ok dont use wd-40...good to know...I dont know what i used last time but I could have used wd-40...

Yeah,it breaks down the rubber seeing that it's oil.

Little reading for you to skim through,pick whichever on the search results.

wd40 on rubber - Google Search

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#9 (permalink) Old 02-12-2007, 09:06 PM
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Wink

Thanks. I'm going to try the glycerine/soap method since getting everything lined up is a bit of a challenge and I'll need to work it around a bit. Believe it or not, my girlfriend does not have hairspray in the apartment, but she does have, some, uhh..."Glycerin-based" product that will come in mighty handy. Will let ya know how it goes tomorrow!

btw--the mounting bracket is 100% very fragile plastic

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#10 (permalink) Old 02-12-2007, 10:06 PM
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Interesting mix of claims about WD40 and rubber.
Personally, I've never had a problem with it.
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