Hood insulator pad? Parts person?

kent11202 · 10-21-2015, 08:19 PM

So, I recently had a 2015 328i loaner and I swear it was not as noisy as my 2013. I looked under the hood at it "seemed" to be a thicker pad.

I know I can stop by the dealer and do a comparison on my own but thought maybe somebody on this board might already know the answer and save me a trip. Did BMW go to a thicker pad in 2015 as the result of "some" minor dissatisfaction by "some" customers relative to engine noise?

Just asking and thanks in advance.

Forgiven · 10-21-2015, 09:42 PM

Main purpose of that insulator is for heat absorption, i believe.

zamboni · 10-21-2015, 10:29 PM

If it's much thicker then buy a new one to replace it.

Billfitz · 10-22-2015, 06:52 AM

A thicker pad would only reduce noise transmission through the hood, not into the passenger compartment.

BavarianFanatic · 10-22-2015, 07:22 AM

Quote:

Originally Posted by Billfitz

A thicker pad would only reduce noise transmission through the hood, not into the passenger compartment.

Except that noise also transmits through the greenhouse, so it would reduce noise into the cockpit.

BavarianFanatic · 10-22-2015, 07:25 AM

Quote:

Originally Posted by kent11202

So, I recently had a 2015 328i loaner and I swear it was not as noisy as my 2013. I looked under the hood at it "seemed" to be a thicker pad.

I know I can stop by the dealer and do a comparison on my own but thought maybe somebody on this board might already know the answer and save me a trip. Did BMW go to a thicker pad in 2015 as the result of "some" minor dissatisfaction by "some" customers relative to engine noise?

Just asking and thanks in advance.

It's the same part number through the entire F30 range (up to 2015 anyway).

Blubaron79 · 10-22-2015, 07:45 AM

It's the active sound in the 2015 that makes the car sound better.

10-21-2015, 08:19 PM	#1
kent11202 Captain 617 Rep 918 Posts Drives: 2013 328i Join Date: Oct 2013 Location: SF Bay Area iTrader: (0)	Hood insulator pad? Parts person? So, I recently had a 2015 328i loaner and I swear it was not as noisy as my 2013. I looked under the hood at it "seemed" to be a thicker pad. I know I can stop by the dealer and do a comparison on my own but thought maybe somebody on this board might already know the answer and save me a trip. Did BMW go to a thicker pad in 2015 as the result of "some" minor dissatisfaction by "some" customers relative to engine noise? Just asking and thanks in advance.
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10-21-2015, 09:42 PM	#2
Forgiven Lieutenant 122 Rep 586 Posts Drives: 22, X5 45e Join Date: Feb 2013 Location: D.C. iTrader: (0)	Main purpose of that insulator is for heat absorption, i believe. __________________ G05 - M Performance roof spoiler
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10-21-2015, 10:29 PM	#3
zamboni I want to drive a Zamboni 1131 Rep 5,557 Posts Drives: 13 E93 M3 18 F80 M3 16 K71 Join Date: Mar 2006 Location: Monte Sereno, CA iTrader: (7) Garage List 16 K71 F800GT [10.00] 2018 F80 M3 [10.00] 2013 BMW E93 M3 [10.00]	If it's much thicker then buy a new one to replace it. __________________ 18 F80 Imola Red 6MT 16 K71 F800GT Montego Blue 13 E93 M3 Melbourne Red 2000 E46,2006 E90,09 E82,13 E93 328i,14 F30 335i,18 F80 M3 My next vehicle would be a Zamboni
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10-22-2015, 06:52 AM	#4
Billfitz Lieutenant General 8245 Rep 16,088 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	A thicker pad would only reduce noise transmission through the hood, not into the passenger compartment.
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10-22-2015, 07:45 AM	#7
Blubaron79 Brigadier General 1435 Rep 4,724 Posts Drives: 2021 M340i xDrive Join Date: May 2009 Location: PA iTrader: (0)	It's the active sound in the 2015 that makes the car sound better. __________________ Current: 2021 M340i xDrive Previous: '18 340i xDrive; '15 335 xDrive; '14 435i xDrive; '09 335 E92 xDrive
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