Code P0400 EGR Malfunction S320 CDI 2001

Timbob

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Hi,

I have taken a few photos of components and hope someone can confirm their identity for me.

P1000749 - is this the EGR solenoid vacuum valve control? If so should you hear a click from it when you switch the ignition on, when working correctly? How do you test to see if working correctly?

P1000750 - sensor located on side of egr valve tube, is this a pressure or temp sensor?

P1000751 - what is this ?

P10000752 - what is this attached to what I think is solenoid vacuum valve - filtered air vent for when no vacuum required at egr valve?


Not sure how to test vacuum system for working correctly.

With engine idling tried sucking on vac pipe connected to egr valve directly , no change in engine or stalling>

Will be removing egr valve tomorrow to clean and look further

Any thoughts appreciated.
Thanks

Tim
PS

Thanks to previous posters auto transmission problem with locking in gear sorted..... due to poor battery 11.77 V, replaced battery, this needed an ecu reset also to clear fault then been perfect ever since.... worth a sticky or equivalent system to post proven successful solutions
 

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