Intake Noise

swifttiga · 10-11-2018, 09:24 PM

128i making a hissing noise dealer said I need a Intake Silencer ever heard of it and where does it go.

________ · 10-11-2018, 10:26 PM

Quote:

Originally Posted by swifttiga

128i making a hissing noise dealer said I need a Intake Silencer ever heard of it and where does it go.

Intake silencer or intake muffler?

The intake muffler seems to be the air filter box.

Is there a part number in your estimate?

chris_flies · 10-12-2018, 07:14 AM

It's more commonly called the intake boot. It attaches between the throttle body and the air filter box. If you wanted, you could install a silicon intake boot that adds a little more growl to the engine's sound since you're replacing it. Mishimoto and Turner make some options.

swifttiga · 10-12-2018, 09:19 AM

Thanks for the responses. No part number was given it was wrapped into a $7000 quote they gave my daughter for a crank sensor and eccentric shaft sensor replacement. Added to that was the recommended silencer and a valve cover change The car went in for a DSC light and this noise. Don't want to change to a tube this is my kids car not sure she wants a growl My Z4 Coupe yes. Not sure they are offering her proper service.

desertman123 · 10-12-2018, 09:31 AM

The hissing might actually be the crankcase breather within the valve cover that's broken. That's why they might be recommending the valve cover be replaced

I would definitely get a second opinion on these repairs. If you go to an independent mechanic who's willing to work with you, you could get all this done for WAY cheaper.

https://www.ebay.com/itm/BMW-E90-Int...AAAOSwyXFaqKXN

https://vanos-bmw.com/product/111275...-n51-n52n-n52k

NGEE · 10-12-2018, 04:43 PM

$7000 to replace two sensors - I assume that included a new transmission?

10-11-2018, 09:24 PM	#1
swifttiga New Member 4 Rep 20 Posts Drives: z4 Join Date: Jun 2012 Location: florida iTrader: (0)	Intake Noise 128i making a hissing noise dealer said I need a Intake Silencer ever heard of it and where does it go.
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10-12-2018, 07:14 AM	#3
chris_flies Sideways and Smiling 3027 Rep 2,860 Posts Drives: In Exuberance Join Date: Mar 2017 Location: Rosamond, CA USA iTrader: (0) Garage List 2012 BMW E91 328i [0.00]	It's more commonly called the intake boot. It attaches between the throttle body and the air filter box. If you wanted, you could install a silicon intake boot that adds a little more growl to the engine's sound since you're replacing it. Mishimoto and Turner make some options. __________________ 2012 BMW 328i 6-Speed Wagon \| Deep Sea Blue with Grey Dakota Leather \| Manual Swap, 330i Intake + Tune, 3.15 Helical LSD, Öhlins R&T (SOLD) 2009 BMW 128i 6-Speed Coupé \| Monaco Blue with Black Sensatec \| chris_flies' 128i thread
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10-12-2018, 09:19 AM	#4
swifttiga New Member 4 Rep 20 Posts Drives: z4 Join Date: Jun 2012 Location: florida iTrader: (0)	Thanks for the responses. No part number was given it was wrapped into a $7000 quote they gave my daughter for a crank sensor and eccentric shaft sensor replacement. Added to that was the recommended silencer and a valve cover change The car went in for a DSC light and this noise. Don't want to change to a tube this is my kids car not sure she wants a growl My Z4 Coupe yes. Not sure they are offering her proper service.
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10-12-2018, 09:31 AM	#5
desertman123 E82 Mudflap Ambassador 2214 Rep 2,219 Posts Drives: '08 128i Join Date: May 2016 Location: Orlando, FL iTrader: (0) Garage List 1992 Honda Beat [9.50] 2008 BMW 128i [10.00] 2014 BMW 528i [10.00]	The hissing might actually be the crankcase breather within the valve cover that's broken. That's why they might be recommending the valve cover be replaced I would definitely get a second opinion on these repairs. If you go to an independent mechanic who's willing to work with you, you could get all this done for WAY cheaper. https://www.ebay.com/itm/BMW-E90-Int...AAAOSwyXFaqKXN https://vanos-bmw.com/product/111275...-n51-n52n-n52k
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10-12-2018, 04:43 PM	#6
NGEE Fuck it dude, let's go bowling. 881 Rep 2,478 Posts Drives: 1M Join Date: Jan 2011 Location: Not Massachusetts iTrader: (0)	$7000 to replace two sensors - I assume that included a new transmission? __________________ 1M. Previously: '13 135is; '07 E90 335i; '02 325i; '99 Z3; '98 328is; '87 L6; '77 320i
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