Are the left and rear sensors the same? If so swap just like you would to root out a problem with abs sensor or an ignition coil.

I don't know where the sensors go but if you can determine if the problem is at the sensor or upstream is the first step.

It's very likely a worn wire or connector upstream off the sensor.

Swap the sensors if you can if the problem stays right it's upstream on the right side if the problem Swiss sides it's in the sensor.

New ≠ fixed. Follow the symptoms regardless how new the part.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)