2010 Mercedes Benz C 300 (204.054) V6-3.0L (272.947) Page 932

- Check voltage supply according to wiring diagram.

4. Check component Y22/9 (Intake manifold tumble flap switchover valve).

Test 4.1: Test actuation of component Y22/9 (Intake manifold tumble flap switchover valve).

Test 4.2: Test current consumption of component Y22/9 (Intake manifold tumble flap switchover valve).

4.1. Test actuation of component Y22/9 (Intake manifold tumble flap switchover valve).

Test prerequisite

- The vacuum system is leaktight.

Test sequence

- Operate engine at idling speed.

- Actuate component Y22/9 (Intake manifold tumble flap switchover valve).(Actuate with key F2.)

Specified value

- Testing The rod of the vacuum unit can be seen to operate.The linkage of the swirl flap can be seen to move.(See arrow)

Warning!Communication with ECU required.

4.2. Test current consumption of component Y22/9 (Intake manifold tumble flap switchover valve).

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