2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 800

- 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 from component N3/10 (ME-SFI [ME] control unit) to component Y58/1 (Purge control valve)

- Line from component N10/1 (Driver-side SAM control unit with fuse and relay module) to component Y58/1 (Purge control valve)

- Y58/1 (Purge control valve)

End of test

2.1.5.3. Perform mechanical inspection of component Y58/1 (Purge control valve).

Figure legend

- 019Vacuum tester

- Y58/1 (Purge control valve)

Test prerequisite

- Actuation is OK.

Test sequence

- Switch off ignition.

- Connect the vacuum tester to the input of component Y58/1 (Purge control valve) with the 3 x distributor.

- Operate engine at idling speed.

- Engine at operating temperature

- Actuate component Y58/1 (Purge control valve), then with key F2.

Warning!Communication with ECU required.

2.1.6. Check signal from component B2/5 (Hot film mass air flow sensor) via actual value.

Test 2.1.6.1: Check signal of component B2/5 (Hot film mass air flow sensor) via actual value with engine OFF.

Test 2.1.6.2: Check signal of component B2/5 (Hot film mass air flow sensor) via actual value with engine speed greater than 3500 rpm.