I have two new block heaters that I'm not going to use. I orderd them from Adsitco and wanted to return them but they don't take returns. They fit '68 to '83 240D and 300D. I paid $45 ea for them. I'll sell them to you for $35ea including shipping. I also made a 3/4" allen head tool so you can use a socket to remove it. I'll throw that is as well.