Just found this for W123.. Was this ever for W116?
I've seen these on the 126, pretty cool or is that "hot" ;D
I'm sure you can retrofit it but to my knowledge this was never offered on the 116.
The W126 and W124 certainly had these in some markets. I'm not sure about the W123 though.
It wasn't a thing on the W116 if the EPC is anything to go by.