E-Class (W210) 1995-2002: E 200, E 220D, E 240, E 290TD, E 300TD, E 200, E 240, E 280, E 320, E 420, E 430 (Wagon, Touring, 4Matic)

Identify This Part, The GameSHOW!

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Old Mar 11, 2018 | 01:48 PM
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2001 E320 4Matic
Identify This Part, The GameSHOW! SOLVED

I have no prizes. But I do have a game designed to help me find the importance of this broken part and you can be FIRST to identify and show your part prowess!


Say what is that area for?


Holy Hannah, look at that split!


Mr. Finger says, 'that no good'!

Last edited by CanuckMerc; Mar 12, 2018 at 12:13 PM. Reason: Solved
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Old Mar 11, 2018 | 09:32 PM
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2001 E320 4Matic
WDBJH82J71X046532
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Old Mar 11, 2018 | 10:18 PM
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(for future ref)

https://www.mercedes-benz.ca/content...tion.0002.html
http://www.auto-parts.spb.ru/cat/cat...&client=dr2000
http://www.wfaw.net/ucbc_files/russi...ams%20E320.pdf
http://www.everythingbenz.com/z/mtyp...atics-drawings
http://www.benzworld.org/forums/w210...arts-list.html



Electric change-over valve

try, for starters, these p/n A0025407097 A1170780981

navigation path: engine...intake and exchange manifolds... air pump

Last edited by raymond g-; Mar 11, 2018 at 10:26 PM.
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Old Mar 12, 2018 | 12:12 PM
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Thanks Raymond! That's the boot valve! It's part of the emissions system and despite I'm not familiar with that part and specifically what it does I do know I have an engine light on issue and an EVAP code problem. Despite a replaced plunger valve, replaced gas tank, and all associated parts, I still have that engine light on and code.

I'm hoping this 3 dollar part that is split fixes it! Thanks Raymond!
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Old Mar 12, 2018 | 12:20 PM
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i'm not familiar with the CDI so I apologize if I mis-labeled it for you. I only had the PDF to view
and look through. I will spend a little time today learning about what a boot valve is
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Old Mar 12, 2018 | 12:48 PM
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No apology needed it sent me in the right direction and now I've got the full pdf parts manual That's how I located that and the associated part number which is:
1170780981 - Changeover valve insulator
5.0L


It's got a screen on the bottom as opposed to this being just a 'plug' persay. It controls the amount of air going into the emissions system. If this part is broken or missing you'll have an EVAP code and a check engine light. Seeing as this part is split right to the end almost, I think it's fair to suggest that after switching out the purge valve, this would be the next part (should have been the first part) to replace.

I'm hoping I've got that danged evap code fixed, I have a new registration to have to go to in July!

Last edited by CanuckMerc; Mar 12, 2018 at 03:26 PM. Reason: corrected info
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Old Mar 12, 2018 | 06:21 PM
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raymond g-'s Avatar
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oh!...okay, so it was the part(s) I identified above...but they give it a different name vs 'blow back' valve
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Old Mar 12, 2018 | 06:25 PM
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Yeah in the end the actual part I ordered at the Benz dealer was:
MERCEDES BENZ 1170780981 Genuine OEM Factory Original Valve Insulator
7 bucks with tax. Will arrive on Thursday. Sure hoping this fixes that danged flashing gas light/engine light p0455 code.
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