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Originally Posted by e320wagon4matic
My 2001 e320 has some really ugly rust starting on the front crossmember (you must remove the plastic belly pan to see this). Two years ago the dealer agreed to apply some rust preventer (Wurth?), but honestly the factory gray paint looks very thin on this crossmember.
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I have found the same problem on our 1998 E320. Did not find it until I took off the plastic belly pan. I have attached some pictures. Th rust is on the lower flange of the forward crossbeam of the front subframe. This is part 122 on the parts picture below.
Has anyone else had this problem repaired? How was it done?
One option is to replace the whole subframe. Bodyshop came up with quote of about $1500.
Another option, is to try and wire brush out the rust and to recoat. Problem is that the cross-beam is fabricated out of two pieces - There is a crevice where the upper section fits to the lower flat section and there is rust between the two.
I would advise anyone who owns a W210 or any car where the belly pan covers the subframe to check for rust - it is a vulnerable spot because any moisture or salt cannot easily be washed out.
