My money's on that black box.
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My money's on that black box.
Presumably that’s where the charcoal filter is?
Correct.....
No, just a plastic box for venting the fuel tank.
A charcoal box is not something you will find in Euro cars. Where are you and what car do you have?
Fuel smell will probably come from a leak (tank, piping, clamp, pump). Can also be that the sealing of the level plotter is worn leading to escaping fuel, certainly when full/just filled.
That's no charcoal in the vapor box. It's just a "high exchange" of air from the tank to overboard lines that may end up going through a charcoal canister in the front left of the luggage compartment. This hose and routing is very model year and market dependent.
And to be honest I don't know if the the vapor box would be on an RS that was originally an RoW car.
Edit: As I think about it, it must be there but the charcoal canister in the front left may not.
Someone more expert on the 73 and the RS should chime in