Saturday, May 1, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 1016


YES



The actual value is okay.Further possible causes of fault



- Unmetered air



- Signal wire



- B2/5 (Hot film mass air flow sensor)



End of test



NO



The measurement value is not OK.Possible cause and remedy



- N10/1f43 (Fuse 43)



- Cable for voltage supply



End of test



2. Check component B28 (Pressure sensor).



Test 2.1: Check component B28 (Pressure sensor) using actual value.



Test 2.2: Check power supply of component B28 (Pressure sensor).



Test 2.3: Test signal voltage of component B28 (Pressure sensor).



2.1. Check component B28 (Pressure sensor) using actual value.



Test sequence



- Switch on ignition.



Status of relevant actual value:



- Coolant temperature:Warning! Communication with ECU required.



- Intake manifold pressure (ADC):Warning! Communication with ECU required.



Specified values



- Coolant temperature > 80锟斤拷 C



- Intake manifold pressure,Ignition ON: > 3.5 V



- Intake manifold pressure,Operate engine at idling speed.:< 2 V



Question



- Is the actual value o.k.?

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