All gasoline sold in the United States is required to contain effective detergent additives. Use of additional detergents or other additives is not needed under normal conditions and would result in additional cost. Therefore you should not have to add anything to the fuel.
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Heated rear window
The warning light on the dial turns on when the heated rear window is turned
on. ...
General instructions for using the seat belts
The driver must comply with (and have the vehicle occupants follow) all the local
legal regulations concerning the use of seat belts.
Always fasten the seat belts before starting.
Seat belts are ...
Rear seats (where provided)
According to versions, two or three head restraints can be provided. To remove
the head restraints, first remove the rear parcel shelf (see paragraph “Extending
the boot”), press button (A) set ...