By continuously
monitoring bacteria in the wastewater treatment
plants, it should be possible to know whether the
plants are
functioning under optimal conditions, so that remedial actions can be taken before a major problem arises.
The GLS550 ups the game with a bigger power
plant, 21 - inch wheels, illuminated running boards, illuminated front door sills, gloss black exterior trim, LED running lights, active LED headlights, adaptive high beams, multicolor ambient cabin lighting, blind spot
monitoring, parking assistance, lane keeping assist, a surround view system, auto - dimming mirrors, dual - zone automatic climate control, soft - close doors, leather upholstery, front seat ventilation and massaging
function, navigation, a Harman Kardon Logic7 sound system, satellite radio and SiriusXM Traffic / Weather service.