DIY: Cabin Air Filter stripped threads repair

Bimmer305 · 06-20-2013, 07:57 PM

My cabin air filter threads where stripped so I ordered some Brass Press-Fit Expansion Insert for Plastics from McMaster.

1- Drill the plastic thread with the adequate drill bit size (1/4") according to whichever insert you ordered.

2- Use some type of glue for plastic to make it stronger.

3- Push/hammer the insert inside the drilled hole.

4- Done.

Materials that I used:

- Brass Press-Fit Expansion Insert P/N: 94510A050

- M6x1 Screw P/N: 98093A436

- JB Plastic weld

Note: I would not recommend getting the same insert I used because I found out they are a little too big. It would have worked better with a smaller one.
A better one to use would be:

- Brass Press-Fit Expansion Insert P/N: 94510A045
http://www.mcmaster.com/nav/enter.asp?partnum=94510A045

- M5x0.8 screw P/N: 98093A312
http://www.mcmaster.com/nav/enter.asp?partnum=98093A312

Edit: Fixed screw part number mistake.

E90Company · 06-20-2013, 08:10 PM

Not bad!

Jeremy · 06-20-2013, 08:20 PM

Well done sir

Lunatic Fringe · 06-20-2013, 08:26 PM

Awesome thanks for this. Mine got stripped when some hasty technician forced the wrong size bolts in there.

1nityrider · 06-20-2013, 08:43 PM

Well done sir!! Something I will be doing.

jpirelli · 06-20-2013, 09:01 PM

You are my hero

cwarren · 06-20-2013, 11:37 PM

nice job seen people just through in bigger screws but I dig this ..very clean

F80M · 06-20-2013, 11:43 PM

Good shit man!

Moutamid · 06-20-2013, 11:50 PM

nice bro

bigdaddycane · 06-21-2013, 10:22 AM

great idea....someone add this to the DIY section as it can help many people with the same problem.

BoostedE90 · 06-21-2013, 10:39 AM

Well done sir!

Bluesun · 06-21-2013, 10:44 AM

Just another person chiming in that this is an awesome idea, and thanks for posting this! I'm not sure why I never thought about doing this...but it's a great idea. Especially given how many times it seems like I end up taking that damn thing off... I'm missing a couple of bolts on it anyhow.

Now someone just needs to do a writeup on how to DIY fix the little sensor things that are near this ( on either side, I think they're rain sensors?). Mine no longer clip in

. The dealer that I always took my car to sure did abuse the engine compartment...

akotten · 06-21-2013, 10:52 AM

I approve. I was going to do the exact same thing for the intercooler mounting holes.

135Pats · 06-21-2013, 10:54 AM

Well done, ive managed to strip mine as well.

tcw · 06-21-2013, 10:58 AM

Ordered the parts! Thanks!

335xi Kevo · 06-21-2013, 11:13 AM

Mine have been toast for a long time! MUCH appreciated!

Bimmer305 · 06-21-2013, 12:07 PM

You are welcome guys.

I don't know how they could engineer a steel screw to screw on a plastic thread

akotten · 06-21-2013, 12:26 PM

Quote:

Originally Posted by Bimmer305

You are welcome guys.

I don't know how they could engineer a steel screw to screw on a plastic thread

Most likely just the effects of mass production. Literally every penny saved is considered. Probably had the screw somewhere else in another assembly and was cheaper than bringing in another plastic variant.

jpirelli · 06-21-2013, 01:10 PM

Anyone want to order those from McMaster and split them up for whoever is interested? I don't need a pack of 25 inserts and 100 bolts.

335okc · 06-21-2013, 02:15 PM

brilliant solution! i've been pissed off at mine since i keep having to take the cowl on and off.

Quote:

Originally Posted by jpirelli

Anyone want to order those from McMaster and split them up for whoever is interested? I don't need a pack of 25 inserts and 100 bolts.

that's what i had in mind, but probably more economical for someone closer. i'm in okc, OK if anybody wants to do this sharing.

SHEEDI · 06-21-2013, 02:38 PM

Nice work

Thanks

Rotorocious · 06-21-2013, 02:41 PM

Bravo sir.

06-20-2013, 07:57 PM	#1
Bimmer305 Second Lieutenant 35 Rep 288 Posts Drives: E92 335i Join Date: Jun 2012 Location: Miami iTrader: (2)	DIY: Cabin Air Filter stripped threads repair My cabin air filter threads where stripped so I ordered some Brass Press-Fit Expansion Insert for Plastics from McMaster. 1- Drill the plastic thread with the adequate drill bit size (1/4") according to whichever insert you ordered. 2- Use some type of glue for plastic to make it stronger. 3- Push/hammer the insert inside the drilled hole. 4- Done. Materials that I used: - Brass Press-Fit Expansion Insert P/N: 94510A050 - M6x1 Screw P/N: 98093A436 - JB Plastic weld Note: I would not recommend getting the same insert I used because I found out they are a little too big. It would have worked better with a smaller one. A better one to use would be: - Brass Press-Fit Expansion Insert P/N: 94510A045 http://www.mcmaster.com/nav/enter.asp?partnum=94510A045 - M5x0.8 screw P/N: 98093A312 http://www.mcmaster.com/nav/enter.asp?partnum=98093A312 Edit: Fixed screw part number mistake. Attached Images __________________ Cobb / DCI / VRSF Downpipes / VRSF 7" Intercooler / Walbro LPFP / E85 Last edited by Bimmer305; 02-25-2014 at 05:52 PM..
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06-20-2013, 08:10 PM	#2
E90Company Major General 198 Rep 6,136 Posts Drives: Car Join Date: Mar 2012 Location: FL iTrader: (2)	Not bad!
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06-20-2013, 08:20 PM	#3
Jeremy k 9 Rep 110 Posts Drives: 2008 335i Join Date: Nov 2011 Location: Seattle iTrader: (0)	Well done sir __________________ 2008 335i - 6 spd - Sedan - Mostly stock
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06-20-2013, 08:26 PM	#4
Lunatic Fringe Private First Class 1 Rep 135 Posts Drives: 335i Join Date: Apr 2013 Location: Sideways iTrader: (0)	Awesome thanks for this. Mine got stripped when some hasty technician forced the wrong size bolts in there.
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06-20-2013, 08:43 PM	#5
1nityrider Second Lieutenant 62 Rep 291 Posts Drives: 2023 X4MC Join Date: Nov 2012 Location: St Paul iTrader: (0)	Well done sir!! Something I will be doing.
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06-20-2013, 09:01 PM	#6
jpirelli Power is nothing without control 35 Rep 762 Posts Drives: E90 + E92 Join Date: Apr 2009 Location: Southeast/Southwest iTrader: (3)	You are my hero
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06-20-2013, 11:37 PM	#7
cwarren Captain 83 Rep 725 Posts Drives: 08 e92 Join Date: Jan 2012 Location: portland iTrader: (1)	nice job seen people just through in bigger screws but I dig this ..very clean __________________ ptf MHD E85 /Hexon rr550 turbo's/PRE custom intakes/CP / bms dp's/hfs4 / er fmic/PSS/spec stage 2+/kwv2/steveAZ stage 3 lpfp /m3 control arms/powerflex black/MF LSD /fuel it port injection
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06-20-2013, 11:43 PM	#8
F80M Major 90 Rep 1,456 Posts Drives: M Fap Join Date: Aug 2011 Location: in your rear view mirror... iTrader: (2)	Good shit man!
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06-20-2013, 11:50 PM	#9
Moutamid Captain 110 Rep 897 Posts Drives: AW E92 M3 Join Date: Jan 2012 Location: oman iTrader: (1)	nice bro
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06-21-2013, 10:22 AM	#10
bigdaddycane I even mod my cereal 268 Rep 3,480 Posts Drives: 11 ZCP DCT M3 14 328d 21 GT4 Join Date: Aug 2009 Location: Northern Va iTrader: (53) Garage List 2021 Porsche GT4 [0.00] 2014 BMW 328d Xdriv ... [0.00] 2011 BMW M3 [0.00]	great idea....someone add this to the DIY section as it can help many people with the same problem. __________________ 2011 Mineral White M3 ZCP - Opticoat, Ventureshield, some CF, B&B exhaust, AFE Intake Vorsteiner VFF 101s Ohlins 2014 Mineral White 328d Xdrive Wagon - Opticoat, Ventureshield, B8s, H&R, Apex SM-10s Hawk Pads 2021 718 Cayman GT4 - Fire extinguiser, Neodyme GT3 Wheel Color
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06-21-2013, 10:39 AM	#11
BoostedE90 Lieutenant Colonel 60 Rep 1,690 Posts Drives: e90 335i 6MT Join Date: Nov 2007 Location: Tampa/Gainesville, FL iTrader: (5)	Well done sir!
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06-21-2013, 10:44 AM	#12
Bluesun sudo su - 52 Rep 236 Posts Drives: 2018 McLaren 570S Spider Join Date: Sep 2010 Location: Ohio - CLE iTrader: (0)	Just another person chiming in that this is an awesome idea, and thanks for posting this! I'm not sure why I never thought about doing this...but it's a great idea. Especially given how many times it seems like I end up taking that damn thing off... I'm missing a couple of bolts on it anyhow. Now someone just needs to do a writeup on how to DIY fix the little sensor things that are near this ( on either side, I think they're rain sensors?). Mine no longer clip in . The dealer that I always took my car to sure did abuse the engine compartment...
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06-21-2013, 10:52 AM	#13
akotten Major 38 Rep 1,079 Posts Drives: 2004 M3 Join Date: Mar 2011 Location: Wichita, KS iTrader: (2)	I approve. I was going to do the exact same thing for the intercooler mounting holes.
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06-21-2013, 10:54 AM	#14
135Pats Major General 460 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	Well done, ive managed to strip mine as well.
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06-21-2013, 10:58 AM	#15
tcw Captain 54 Rep 748 Posts Drives: 2008 335i Join Date: Jan 2012 Location: Atlanta, GA iTrader: (2)	Ordered the parts! Thanks! __________________ 2008 335I E92, AW, VFF700, 18" Forgestar F14, M3 front/side, M-tech rear, AMS IC, H&R Touring Cup Kit suspension, HID AE, ER Charge Pipe & Synapse BOV, CIC Retrofit, Quafie, DSS, Defiv Lockdown, SPEC 2+/Steel SMFW, Walbro 450
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06-21-2013, 11:13 AM	#16
335xi Kevo Lieutenant 29 Rep 497 Posts Drives: 2008 335xi Join Date: Jan 2012 Location: CT iTrader: (3)	Mine have been toast for a long time! MUCH appreciated! __________________ 08' 335xi 6MT Space Metallic Grey Premium, Nav, Cold weather, Sport Procede 2.5, DCI, Forge DV, PWM, Scoops, KW V1, ETS 5" FMIC, VRSF Downpipes, M3 Skirts
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06-21-2013, 12:07 PM	#17
Bimmer305 Second Lieutenant 35 Rep 288 Posts Drives: E92 335i Join Date: Jun 2012 Location: Miami iTrader: (2)	You are welcome guys. I don't know how they could engineer a steel screw to screw on a plastic thread __________________ Cobb / DCI / VRSF Downpipes / VRSF 7" Intercooler / Walbro LPFP / E85
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06-21-2013, 01:10 PM	#19
jpirelli Power is nothing without control 35 Rep 762 Posts Drives: E90 + E92 Join Date: Apr 2009 Location: Southeast/Southwest iTrader: (3)	Anyone want to order those from McMaster and split them up for whoever is interested? I don't need a pack of 25 inserts and 100 bolts.
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06-21-2013, 02:38 PM	#21
SHEEDI Banned 607 Rep 2,703 Posts Drives: 2009 335i - Sport PKG Join Date: Jun 2009 Location: NY iTrader: (0) Garage List 2009 BMW 335i [8.50]	Nice work Thanks
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06-21-2013, 02:41 PM	#22
Rotorocious Lieutenant Colonel 105 Rep 1,520 Posts Drives: 335xi Join Date: May 2010 Location: Colorado iTrader: (3)	Bravo sir.
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