Tuesday, December 7, 2021

2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 650


Test prerequisite



- The actuation was not okay.



Test sequence



- Switch off ignition.



- Connect socket box (126-pin) to component N3/10 (ME-SFI [ME] control unit).



- Measure direct current with multimeter between sockets (F.4) 100 and [M.53] 53 of the 126-pole socket box tester.



- Switch on ignition.



Specified value



- Amperage[0.3...0.6] A



Question



- Is the measurement value OK?



YES



The measurement value is OK.End of test



NO



The measurement value is not OK.Possible cause and remedy



- N10/1f57 (Fuse 57)



- N10/1kI (Circuit 87 relay, engine)



- Line between component N3/10 (ME-SFI [ME] control unit) and component Y32 (Air pump switchover valve)



- Line between component N10/1 (Driver-side SAM control unit with fuse and relay module) and component Y32 (Air pump switchover valve)



- Y32 (Air pump switchover valve)



End of test



0814



Malfunction of secondary air injection at left bank of cylinders (function chain) (P0410)



Possible cause:



- Secondary air injection



- M33 (electric air pump)



- Y32 (Air pump switchover valve)

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