Thursday, April 22, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 2227


REMEDY



- Disassemble and assemble automatic transmission using the repair instructions.



- Exchange electrohydraulic control unit.



IMPORTANT NOTEFollowing the repair measures, the following checks MUST be carried out using the Diagnosis Assistance System, menu



'Control unit adaptations'



- Flash programming of control unit Y3/8n4 (Fully integrated transmission control (VGS) control unit)



- SCN coding



End of test



NO



The measurement value is not OK.Possible cause and remedy



- Diagnostic cable has open circuit.



- Inspect wiring and connectors at connection points for loose contacts, damage and corrosion. Repair or replace as required.



End of test



NO



The measurement value is not OK.Possible cause and remedy



- Diagnostic cable has short to ground.



- Inspect wiring and connectors at connection points for loose contacts, damage and corrosion. Repair or replace as required.



End of test



NO



Further image can be displayed with key F7.X11/4 (Diagnosis test connector)Test sequence



- Switch off ignition.



- Separate plug connection at transmission.



- Measure voltage in transmission wiring harness using a multimeter.



- Measure resistance with multimeter between 3 and 11 (X11/4)



Specified value



- Resistance measured: [< 0,6] ohms



Question



- Is the measurement value OK?