2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 786

NO

The measurement value is not OK.Possible cause and remedy

- Test current consumption of component M3 (Fuel pump).

- Fuel filter with integrated pressure regulator

NO

Figure legend

- A -ConnectionTest cable 35-pin socket box

- 001 -Sockets of component N3/10 (ME-SFI [ME] control unit)

- 05 -35-pin socket box

- 050 -126-pin socket box

- 108 -Test cable 266 589 01 63 00

- N3/10 (ME-SFI [ME] control unit)

- II 1-63ConnectionTest cable

- III 64-126ConnectionTest cable

Warning!

- Connection A of test cable 108 may NOT be connected to connection B of the 126-pin socket box (050).

Continue to test with button F2

Figure legend

- 043Pressure gage

- 055Measuring beaker

- 069Pressure hose(119 589 04 63 00)

Warning!On USA vehicles with code 917 ( PZEV ), the sealing ring of the service valve for the protective cap must be replaced.Test sequence

- Switch off ignition.

- Connect test pressure gauge.

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

- Insert bridge.:

- Bridge between sockets [F.4] 100 and [F.17] 113 of the 126-pole socket box tester.

- Switch on ignition.

- Component M3 (Fuel pump) runs.

- Warning! Insert bridge only for a short time.

Specified value

- Pressure[3.7...4.2] bar