Parktronic problem

[Wilsophia]

Dear bro, My C32 is equipped with front and rear Parktronic system but there is some problem recently. When the car is running slow under 10kph, the parktronic auto turn on. But the RHS front will show a false alarm which show some yellow dot comes and it turns to 4 red dots immediately. There is nothing close to the car. I have deep cleaned all the RHS and LHS sensors surface. The false alarm left some days but it came again tonight. I would suspect one of the sensor on my RHS front got problem. I will STAR diagnostic it later to check for the problem. But I would like to know how to remove the sensors ? Please don't tell me I need to remove the whole front bumper to do it as it is really a painful job. Should it be just take out the sensor strip at outside rather than remove the bumper? Thanks Wilsophia

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