Seatbelt presenters are more trouble than they're worth. I have disabled them in our 2 coupes by removing the associated fuse.

With hood/grill damage it's possible the radiator, condenser and fans are damaged also. Recommend having a PPI (pre-purchase inspection) performed by a MB-trained tech who has experience with that vintage MB automobile. For that price be skeptical. Few, if any, owners are selling well maintained MB automobiles for a pittance. A neglected car could be a money pit and constant aggravation so ask to review all maintenance records.

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Fred Hoelzle