Help Needed with Star Calibration of Speedometer Error in a W204 C220 CDI

I initially mistakenly placed my Speedo Error Post in the AMG Forum. Then when I discovered my mistake I added links in the W204 and W220 Forums hoping to get more subject matter experts. Sorry for the doubling up. I have now transferred the main post back here where it belongs. Speedometer Error and Star Calibration? Our W204 2008 C220 has had a significant speedo error since new. The speedo indicates 60 Km/h when the actual speed is 56 Km/h, an error of nearly 7%. The car is... Help Needed with Star Calibration of Speedometer Error in a W204 C220 CDI

I initially mistakenly placed my Speedo Error Post in the AMG Forum. Then when I discovered my mistake I added links in the W204 and W220 Forums hoping to get more subject matter experts. Sorry for the doubling up. I have now transferred the main post back here where it belongs.

Speedometer Error and Star Calibration?

Our W204 2008 C220 has had a significant speedo error since new. The speedo indicates 60 Km/h when the actual speed is 56 Km/h, an error of nearly 7%. The car is...

Help Needed with Star Calibration of Speedometer Error in a W204 C220 CDI

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