New Nox Sensor Nitrogen Oxide Sensor for Mercedes Benz, A0101539628 , 5WK9 6659B , 5WK96659B

OEM:A0101539628  ,  5WK9 6659B ,  5WK96659B

Nox emulator is an electronic circuit board or PCB (printed circuit board) – the exact copy of the circuit board installed within the metal box of the nox sensor. This is the brain of the nox sensor which receives and send various communications to other systems such as SCR system or vehicle’s main ECU. To replace the electronic board, you should first open the box to access it. The cover is simply sealed in to place, we would recommend using hand held heath gun to gently apply heat and soften the sealant till cover could be easily taken off. Once opened, remove electronic board gently paying especial attention to not damaging the pins over which it slots in. Next, slot nox emulator/pcb into the box over the pins and solder pins in place. You should now clean the box and the cover getting rid of any old sealant and making sure all areas are clean and ready for new sealant. Seal the cover in place using good quality purpose designed sealant preventing any risk of water/moisture getting inside this box as it would cause damage to the electronic board. Allow sealant to dry properly and re-fit your nox sensor.