I would replace the rubber seal, rebuild the rusted off metal either with Epoxy or by cutting and welding new metal into the area.Hi, I am new. Cool this topic here is also big.
My 1999 limousine was cleaned out yesterday. I removed the Interiour-Air-filter housing (broken seal, a lot of rust), the housing of the ECU and the battery tray to get acces to all the dirt. I think I was first one to do so. I attached some pics. Everything was sealed with PU-sealant, so I might be the last who did this job.
Anyway I found a clear hose under the battery with a broken connector. Anyone knows what it is for? Do I need it (1)?
And the rubber sealant behind (2) is broken. Also, do I need it?