there's a very good
guide on DW for archs
remove wheels, spray with apc, and snow foam, get a brush, rinse, maybe wax etc after
engine: wrap electric components is cling film/foil, open host and hose down (i dont do this lol), then something like Surfex HD or strong APC, spray on, clean with MF, rinse, engine tickover to dry most, then excess dry with towel
spray hoses etc in 303 to give shine and protection
will find guides in a mo