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Old 02-21-2006, 04:50 PM
Posts: n/a
Red face Heat Shielding

Okay, For some reason my heat shielding on my hood (84 300 D Turbo) deceided to fall off this weekend - at least some big chunks of it. It was very cold this weekend (- 25 wind chill) so I had some starting issues, but that turned out okay. I am just worried about all this old foam falling into the engine compartment, and should I (HOW TO I) replace? Appreciate any assistance

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Old 02-21-2006, 04:54 PM
fantom71's Avatar
Registered User
Join Date: Jan 2006
Location: Madison, AL
Posts: 85
I read last week that someone used 1" (?) AC duct insulating sheets to make their own. It seemed very easy and cheap compared to the cost of the "real" part. Here is a link to the entire thread:

Duct board hood pad

I have written the info down and it will be a project for me this spring.

Good Luck
Fantom71 aka Dale
Madison, AL

91 190E 2.6 5 speed 220k miles and this car still scoots!

Last edited by fantom71; 02-21-2006 at 05:00 PM.
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Old 02-21-2006, 06:50 PM
Registered User
Join Date: Dec 2005
Location: Texas Hill Country
Posts: 510
Mine was toast and I was experiencing large amounts of grief everytime I walked back into house after piddling with the Benz...the red-head did not like those crumbs on her carpet!

I put the hood in the full upright posistion, used a old (I thought it was more trouble now) bed sheet to lay over the engine and used a garden hoe to scrape off everything that was left of the old pad! Followed with a smaller scraper and a bit of wire brushing. Fold up the sheet carefully so you don't get that junk in your engine bay...I shook it in the yard (this was another bad mistake...use a trash can)....always stand and work upwind if possible.

It only took about 15 minutes to do the deed. However, I fear I will hear about bed sheet for the rest of my life!

I used the A/C duct board for a new hood liner...very easy, no glue. I cut mine large, trimmed to fit inside the side channels of hood and "bowed" it into does not follow the contour of the hood, it runs straight across and creates a dead air space betwwen the board and the hood, which I think helps with sound deading.

If you want to get picky...draw a vertical line centered on the inside of the hood and a horizontal line the same thing on the fiberglass side of the duct board....take your hood dimensions from your hood marks and transfere to the duct board. This PITA method will give you a very well fitted hood pad...I went the more casual CBE (crude, but effective) method....eyeball, slice, dice, check fit, slice and dice untill you get what you want. It ain't rocket science, it's duct board.

It works, and it is much quieter....that a good thing!
1983 300TD Wagon
Even a broken watch is right twice a day
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Old 02-21-2006, 07:28 PM
pawoSD's Avatar
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,315
Mine was mostly gone when I got my car, a small section remained and deposited pieces every time one opened the I scraped it off, and got a new one. Two full giant cans of 3M Industrial Spray glue and 30 mins later, and I was done. Huge difference.
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 90k - mine - (OC-91,200)
'17 Metris(VITO!) - 18k - wifes (OC-25k)
'01 E320 Wagon - 161k - mine (OC-165,000)
'01 E320 - 180k - dad's (OC-182,500)
'07 E350 Wagon - 134k - dad's (OC-139,500)
'01 SL500 - 56k - dad's (OC-59,000)
'16 E400 4matic Sedan - 81k - Brothers (OC-88,000)
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Old 02-22-2006, 09:16 AM
Posts: n/a
Thumbs up Thanks

Thanks for all the help, this board is great!! I wish I had of known about it with my first Benz (85 380SL - long gone but missed)

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