Appearance: Bosch Apply:Audi,Dodge,Fiat,Jeep,Mercedes,Opel,Saab,Seat,Suzuk, ... for almost 50,000km at least. Operational principle: WHAT’ S “λ”?Lambda is a mathematical calculation representing air/fuel ratio. Thefigure is ... /20FT18*8*4.5CM 20*42*48CM0.0403250PCS34750 Operation Instruction: Bosch Oxygen Sensor