2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 837

Test prerequisites

- Actuation is not OK.

Test sequence

- Measure direct current with multimeter between sockets (F.4) 100 and (M.21) 21 of the 126-pole socket box tester.

- Switch on ignition.

Specified value

- Amperage[0.2...0.6] A

Question

- Is the measurement value OK?

YES

The measurement value is OK.Further possible causes of fault

- Vacuum unit for variable intake manifold

End of test

NO

The measurement value is not OK.Possible cause and remedy

- Voltage supply of component Y22/6 (variable intake manifold switchover valve)(N10/1f57 (Fuse 57))

- Wiring from control unit N3/10 (ME-SFI [ME] control unit) to component Y22/6 (variable intake manifold switchover valve)

- Y22/6 (variable intake manifold switchover valve)

1074

Y22/6 (variable intake manifold switchover valve) : Short circuit to ground (P2009)

Possible cause:

- Y22/6 (variable intake manifold switchover valve)

Affected functions:

- Engine output

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