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Left rear rpm sensor (L6/3) (model 168) Wheel speed sensor, left front (L6/1) Right front rpm sensor (L6/2) (model 208, 210) Left front rpm sensor (L6/1) and right front rpm sensor (L6/2) (models 203, 209) The evaluation of the wheel speed signals reveals the mileage covered. The wheel speed signals of the not driven wheels are evaluated, since their slip between the roadway and tire is lower, which results in a more accurate result when calculating the mileage. Calculation of the vehicle orientation The navigation computer calculates the direction in which the vehicle is traveling (compass direction) from the Calculation of the direction of motion The navigation processor recognizes the direction of motion (forward or reverse) from the reverse signal. Calibration of tire circumference As a matter of principle, the navigation system recalibrates itself while driving as described. However, this may new tires (tread depth > approx. 5 mm) used tires (tread depth < approx. 5 mm) The entry can be done two different ways: With aid of STAR DIAGNOSIS. By calling the "Navigation --> TIRE" menu at the radio (A2) Errors due to vehicle movement with switched off ignition lead to an inaccurate basic location finding. Rolling backwards without the reverse gear engaged is evaluated as forwards motion, and may lead to an error The errors are, however, corrected automatically after a short time by the navigation processor after receiving GPS data. A special calibration drive by driving around a defined test path is not ever required.
2001 Mercedes-Benz ML320 1998-2005 ACCESSORIES & BODY, CAB Electrical System - Body - 163 Chassis
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