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What is this Part?

1K views 8 replies 5 participants last post by  Yal 
#1 ·
Can any one tell me what is this part and what is it for?
under the hood of w124 - 320 - M104 Engine

it's connectin 2 hoses , located beside the SRS

i'v attached an images showing it
 

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#4 ·
I just recently replaced the entire hose assembly. The check valve is part of it. If I recall the whole deal was about $50.00 from autopartsplace.com . Took all of about 20 minutes to do. My entire hose had become brittle with age and heat and was showing signs of wanting to crack.

This is an easy fix and good insurance. No one wants the break booster to not boost!!

Good luck
 
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