Peugeot 307 sensors

HELLO WILL BE TWO QUESTIONS I WANT TO CHANGE THE FRONT WINDOW OF MY VEHICLE IF I CHEAP THE CHEAP WINDOW RAIN AND HEADLIGHT SENSOR DOES IT WORK? THE SECOND QUESTION IS THE STEERING BOX IS OIL MISSING REPAIR IS IT POSSIBLE AND DOES THIS RIDE DAMAGE THE VEHICLE? THANK YOU FOR YOUR ANSWERS. & Nbsp;

Does anyone have knowledge?

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Subcontractor glass did not work in me, but there are gel pads running on all glasses, if the glazier is competent, this will solve the problem.