TechnicianVision · Knowledge base
Refinishing Park Assist Sensors: Mercedes-Benz
I-CAR · January 19, 2023 · Mercedes-Benz
Summary
Mercedes-Benz allows the refinishing of PARKTRONIC park assist sensors only if the part number ends with 9999 or contains additional information 420 in XENTRY Parts Information. The total paint thickness on these sensors must be strictly maintained between 70 um and 120 um to prevent system failure.
What to do on the job
Verify the sensor part number or XENTRY info allows painting, and measure the paint thickness to ensure it remains strictly between 70 um and 120 um.
How to use it
Use this document to justify the labor and precision required to measure paint mil thickness on Mercedes-Benz PARKTRONIC sensors. It proves that excessive or insufficient paint thickness (outside 70-120 um) will detune the diaphragm and cause system failure, justifying sensor replacement if pre-painted or damaged sensors cannot be refinished within specification.
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