Monday, November 26, 2018

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 1442


Warning!Communication with ECU required.



2766



Excessive rpms have occurred at component Y3/8n2 (Internal speed sensor (VGS)).



Possible cause:



- Y3/8n2 (Internal speed sensor (VGS))



Affected functions:



- Automatic transmission Function



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Test 1: Remedial action on overspeed of component Y3/8n2 (Internal speed sensor (VGS))



1. Remedial action on overspeed of component Y3/8n2 (Internal speed sensor (VGS))



Operation number of operation texts and work units or standard texts and flat rates:27-0641Possible cause and remedy



- Erase fault memory in control unit Y3/8n4 (Fully integrated transmission control (VGS) control unit)



- Conduct a road test with the vehicle.During the road test, drive the engine from gear 1 to gear 3 in the engine speed cutoff range.



- Read out fault memory of control unit Y3/8n4 (Fully integrated transmission control (VGS) control unit).



Question



- Is control unit EGS electronic transmission control indicating the current fault code 2766?



YES



Preconditions



- Control unit Y3/8n4 (Fully integrated transmission control (VGS) control unit) is indicating the current fault code 2766.



Remedy



- Performance of SCN coding



END OF TEST



NO



Preconditions



- Control unit Y3/8n4 (Fully integrated transmission control (VGS) control unit) is not indicating any fault codes.



Remedy



- Read out fault memory of control unit Engine management.