Saturday, March 30, 2019

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 192


- Battery voltage too low.Test battery.Charge battery, replace if necessary.



- If fault occurs again:Check alternator.Communication with ECU required



- The quiescent current is too high.Test quiescent current.



NO



Figure legend 1:N71 (Headlamp range adjustment control module)Figure legend 2:N10/1 (Front SAM control unit with fuse and relay module)Test



prerequisite



- The relevant actual value is not okay.



- Battery voltage is OK.



- Fuse N10/1f51 (Fuse 51) is OK.



Test sequence



- Switch off ignition.



- Disconnect connector at component N71 (Headlamp range adjustment control module).



- Measure direct voltage with multimeter between sockets (N71) 20 and (N71) 19



- Switch on ignition.



Specified value:Voltage = [11.0...14.5] VQuestion



- Is the measurement value OK?



YES



The measurement value is OK.Figure legend 1:N71 (Headlamp range adjustment control module)Figure legend 2:N10/1 (Front SAM control unit



with fuse and relay module)Possible cause or remedy in case of malfunction



- Inspect plug connections N71x1 and (N10/1) 24 for damage, loose contact and corrosion, and repair if necessary.



- N71 (Headlamp range adjustment control module)

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