Engine grounding

[Gangway]

I have two ground straps coming off the front of the engine - both are currently disconnected. One has what looks like a big condensor attached to it. Any idea where the grounds are supposed to go and what the condensor is?

[BobH]

These sound like part of the radio noise suppression kit that could be ordered with the car

There are details and pictures in the Tech Manual, see Radio - Suppression, there are two downloads with details for 230's and 280's, but you need to register as a full member to access them

Looking again at your picture, this condenser may be associated with late 280's electronic ignition, does it look like this one?

https://www.ebay.com/itm/BOSCH-IGNITION-CONDENSER-1-237-330-198-1237330198-N-O-S-/372650540642

It depends if you've changed your ignition whether it's still required