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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > BMW N54 335 PRESSURE CONVERTER/ Turbo Solenoid



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      02-22-2013, 11:45 AM   #1
axi005
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BMW N54 335 PRESSURE CONVERTER/ Turbo Solenoid

Thanks for the help in advance-
I have an 07 335 and my oil catch can contributed in breaking my very brittle
pressure converter/ Turbo boost solenoid.

I want to replace them both while im doing the job, where can i purchase these? Other than the dealer which is my last resort. "also from my search tischer used to have them for 91 a piece but i cant find them"

Also i used to do alot of work on e36 bmw's and they have a similar EMISSIONS VACUUM ELECTRONIC VALVE EGR. would this work as a temporary replacement since i have a few laying around? "but i would prefer to keep it oem"

link to e36 solenoid
art 11741742712 (ELECTR.VALVE)
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      02-22-2013, 11:51 AM   #2
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link

http://www.ebay.com/itm/BMW-E36-E38-...2689ab&vxp=mtr
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      02-22-2013, 11:51 AM   #3
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huh what?
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      02-22-2013, 12:00 PM   #4
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My pressure converter/ turbo boost solenoid broke. Im looking for a replacement, I called the dealer they quoted 210 per solenoid. Are there any online sites that sell them?

and the e36 sensor looked similar with the e90 sensor, i was wondering if they could be swapped since its just a vacuum sensor.
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      02-22-2013, 12:08 PM   #5
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check tischer or find it at realoem and than ebay the part number.
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      02-22-2013, 09:21 PM   #6
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http://www.ecstuning.com/BMW-E90-335i-N54_3.0L/Search/Boost/ES2498186/


Oem part # 11747626350
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      02-23-2013, 12:04 AM   #7
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Quote:
Originally Posted by enrita View Post
check tischer or find it at realoem and than ebay the part number.
tishers site is getbmwparts.com they usually have some of the best oem prices.
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      02-23-2013, 12:27 PM   #8
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If you're talking about the 2 pressure converter valves that mount on the passenger side of the valve cover, your e36 parts won't work. Get a set of 2 updated valves from someone like tischer.

Fwiw, most of the valves I test on older 335i models leak. Even if you aren't experiencing any symptoms, it's a good idea to test them. Both of mine were leaking at 24k miles -- one badly. There is a reason BMW has revised this part several times.
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      02-23-2013, 01:31 PM   #9
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Quote:
Originally Posted by Bme30
http://www.ecstuning.com/BMW-E90-335i-N54_3.0L/Search/Boost/ES2498186/


Oem part # 11747626350
Newest part number! Just replaced both of mine.
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      02-24-2013, 12:22 AM   #10
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Boost solenoids they have upgraded these ? where have I been ? haven't heard anything about this ..have an very early model 08 never replaced mine but then again never had any boost issues either .
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      02-24-2013, 07:54 AM   #11
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The original part # from my 07 was superseded twice. I had one go bad so I figured might as well do both.
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      02-24-2013, 11:51 AM   #12
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Quote:
Originally Posted by cwarren View Post
Boost solenoids they have upgraded these ? where have I been ? haven't heard anything about this ..have an very early model 08 never replaced mine but then again never had any boost issues either .
Yep..... the new style also look physically different, so it's easy to identify the changes. The older style are prone to leaking. I think anyone with an earlier car should at least test theirs to see if they hold vacuum as they should on the intake side.
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      02-28-2013, 03:02 PM   #13
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Thanks

Sorry for the delayed response, I appreciate your guys quick responses and information. Love this forum

I initially noticed low boost symptoms and then it gradually got worse, i check all the vacuum lines and finally noticed the little tube portion was cracked which i think was caused by the placement of my oil catch can.

Once again thanks for the help!
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      03-01-2013, 03:26 PM   #14
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what OCC do you have? post pics?
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      03-01-2013, 08:58 PM   #15
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210 per solenoid??? damn, mine is like, $130 each
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      03-06-2013, 09:58 AM   #16
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I guess this is related and could not see the point of starting a new thread.

Suspect my pressure converter/solenoids are leaking or not holding vac. Pulled the lines off of the vacuum tank, 1 tank i got a whoosh as the air was sucked in the 2nd one nothing. I assume this means one is screwed?
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      03-06-2013, 05:07 PM   #17
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generally yes, the part has been superceded a couple of times, so it may be worth the labor to replace both at the same time, and the vacuum lines too
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      03-06-2013, 05:29 PM   #18
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Found these online, im guessing unbranded parts but same part number.

http://seekpart24.com/pierburg/press...00391&at=18473
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      03-06-2013, 05:54 PM   #19
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How difficult are these to fit?
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      03-06-2013, 08:09 PM   #20
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Pierburg is an OEM supplier for BMW, I have bought several BMW parts with Pierburg logos on them.

I do not think installing these should be difficult at all
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      06-16-2014, 04:20 PM   #21
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Quote:
Originally Posted by axi005
Thanks for the help in advance-
I have an 07 335 and my oil catch can contributed in breaking my very brittle
pressure converter/ Turbo boost solenoid.

I want to replace them both while im doing the job, where can i purchase these? Other than the dealer which is my last resort. "also from my search tischer used to have them for 91 a piece but i cant find them"

Also i used to do alot of work on e36 bmw's and they have a similar EMISSIONS VACUUM ELECTRONIC VALVE EGR. would this work as a temporary replacement since i have a few laying around? "but i would prefer to keep it oem"

link to e36 solenoid
art 11741742712 (ELECTR.VALVE)
Just thinking if I should take off my OCC - can you tell us more on how the occ contributed to the boost solenoids going bad?
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      06-16-2014, 04:22 PM   #22
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Quote:
Originally Posted by BMWM.D. View Post
If you're talking about the 2 pressure converter valves that mount on the passenger side of the valve cover, your e36 parts won't work. Get a set of 2 updated valves from someone like tischer.

Fwiw, most of the valves I test on older 335i models leak. Even if you aren't experiencing any symptoms, it's a good idea to test them. Both of mine were leaking at 24k miles -- one badly. There is a reason BMW has revised this part several times.
details on testing procedure? Anything else I should check while I'm in there?
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