Yes Adam, my old Mercedes will be getting rear seat belts. I don't want my rear seat passengers slapping me on the back of the head as they pass by on their journey out through the windscreen. I'm investigating for interests sake. Many other old Mercedes owners do not have seat belts in the rear as the rear seat is never used (having sat in the rear of these coupes, I can understand why they're not used. They seem to be designed for people without legs.)
The various departments of transport in each state have different rules regarding roadworthy's and design rules.
My understanding is if you modify a vehicle from manufacturers specs, you need an engineers report. (I'm speaking from experience here as one of my Landrovers is so modified that it required an engineers report.) Further to this, my understanding is (being pedantic here), if COFFEY76 modifies his wiper motor to a two speed setup, he will require a costly engineers report for the wiper motor. In Coffey76's case, as he is already getting an engineers report done for the vehicle motor, I would advise him to get it done rather than argue.
Does anyone know how to speed up the wipers on a '69 109"? I assume they're vacuum operated and oiling the wiper blades is not an option.

