Pagoda SL Group

W113 Pagoda SL Group => Drive train, fuel, suspension, steering & brakes => Topic started by: Crestfyre on October 12, 2019, 22:54:29

Title: Copper grease hubs
Post by: Crestfyre on October 12, 2019, 22:54:29

I recently purchased an entire front suspension setup because I needed certain parts and it saved a boatload of money over buying them separately. After cleaning the mud off I noticed the grease caps were solid copper. So I pulled one and noticed there was a contact point on the hub and a point similar to electric brushes from a motor on the axle side. So my question is were these for radio suppression and were they ever used on a 64 230sl? Attached are pics

Title: Re: Copper grease hubs
Post by: ja17 on October 13, 2019, 00:00:22

Yes for the radio also notice if your car has the copper contacts next to the center hood latch for the radio also. I do not know when these came into use.

Title: Re: Copper grease hubs
Post by: Benz Dr. on October 13, 2019, 03:34:02

Dust caps are copper plated.

Title: Re: Copper grease hubs
Post by: wwheeler on October 14, 2019, 18:08:17

For whatever it is worth, I have copper colored grease caps with the ground straps on both the '68 W111 and the '60 W128 coupes. The '60 is a Ponton. I would assume they started no later than 1960 with the ground strap in the grease cap.