I had to repair one of the feet on the 300e air box. I used JBWeld in two coats, letting the first dry before the second and it has held well. I think the idea of using some sort of mesh, like a screen between layers would be good.

Ideally of course, replace it.

Haasman

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'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)