Subframe bolts one time use?

Gleepglurp · 09-04-2016, 09:59 AM

Hey everyone, i plan on installing my downpipes today but since i have an awd 335i i have to drop the subframe to get them out. My question is are the subframe bolts on bmw's one time use, i know that in audi's they are because the supposedly stretch to fit after installed and arent safe ro reuse.

Boland01 · 09-04-2016, 12:29 PM

I've dropped the subframe and reused them. To my knowledge they are not one time bolts. The oil pan bolts on the other hand are.

TrollToll · 09-04-2016, 12:59 PM

Are the blue? Most of the one-time bolts that I've seen have a blue head.

Mykindaguise · 09-04-2016, 01:25 PM

They are stretch bolts. So yes.

ilicboris · 09-04-2016, 01:56 PM

I reused mine. I saw nothing about getting new ones and I'm pretty sure they are steel bolts.

Riceball777 · 09-04-2016, 02:23 PM

No they are not one time use bolts. You can use them as many times as you want as long as they are not damaged.

vitan · 09-04-2016, 02:27 PM

Quote:

Originally Posted by Riceball777

No they are not one time use bolts. You can use them as many times as you want as long as they are not damaged.

+1

theweebabySeamus · 09-05-2016, 10:34 PM

I don't recall them being aluminum when I pulled mine, and reused mine to no issue.

Milan · 09-06-2016, 12:47 AM

They are definitely not aluminum...lol

RCB · 09-06-2016, 05:54 AM

Yeah, definitely not aluminum......they rust. Keep them clean and you can use them multiple times.

musa · 09-07-2016, 01:03 PM

Quote:

Originally Posted by RCB

Yeah, definitely not aluminum......they rust. Keep them clean and you can use them multiple times.

Yep. Also per Bentely E9x manual and BMW TIS, they can be reused if in good condition.

09-04-2016, 09:59 AM	#1
Gleepglurp New Member 1 Rep 11 Posts Drives: 09 335 i xdrive Join Date: Feb 2016 Location: Boston iTrader: (0)	Subframe bolts one time use? Hey everyone, i plan on installing my downpipes today but since i have an awd 335i i have to drop the subframe to get them out. My question is are the subframe bolts on bmw's one time use, i know that in audi's they are because the supposedly stretch to fit after installed and arent safe ro reuse.
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09-04-2016, 12:29 PM	#2
Boland01 Lieutenant 149 Rep 460 Posts Drives: 2010 535ix, 2008, 2007 335i Join Date: Sep 2013 Location: Magnolia, TX iTrader: (0)	I've dropped the subframe and reused them. To my knowledge they are not one time bolts. The oil pan bolts on the other hand are.
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09-04-2016, 12:59 PM	#3
TrollToll Banned 654 Rep 946 Posts Drives: 535i Join Date: Sep 2015 Location: Texas iTrader: (0)	Are the blue? Most of the one-time bolts that I've seen have a blue head.
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09-04-2016, 01:25 PM	#4
Mykindaguise Private 11 Rep 77 Posts Drives: 08 335xi/11 370z turbo Join Date: Aug 2014 Location: PA iTrader: (0)	They are stretch bolts. So yes.
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09-04-2016, 01:56 PM	#5
ilicboris First Lieutenant 77 Rep 334 Posts Drives: 2009 E90 335xi Join Date: Nov 2014 Location: Nebraska, USA iTrader: (0)	I reused mine. I saw nothing about getting new ones and I'm pretty sure they are steel bolts.
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09-04-2016, 02:23 PM	#6
Riceball777 Lieutenant 163 Rep 466 Posts Drives: S2000 618whp/ e90 335i Join Date: Jul 2012 Location: Los Angeles iTrader: (0)	No they are not one time use bolts. You can use them as many times as you want as long as they are not damaged. __________________ 2007 e90 335i pure stage 2 DD turbos, rb inlets
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09-05-2016, 10:34 PM	#8
theweebabySeamus Captain 376 Rep 902 Posts Drives: M3 Join Date: Jul 2014 Location: Bay Area iTrader: (1)	I don't recall them being aluminum when I pulled mine, and reused mine to no issue.
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09-06-2016, 12:47 AM	#9
Milan Captain 202 Rep 649 Posts Drives: F80 M3 Join Date: May 2014 Location: Boise, ID iTrader: (7)	They are definitely not aluminum...lol __________________ 17 M3 Comp
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09-06-2016, 05:54 AM	#10
RCB Enlisted Member 28 Rep 42 Posts Drives: 2008 535Xit E61 Join Date: Apr 2015 Location: Boston iTrader: (0)	Yeah, definitely not aluminum......they rust. Keep them clean and you can use them multiple times. __________________ 2008 E61 535xit MHD, VRSF CP, Tial BOV, DCI, BMS OCC, M5 seats, LED interior/DRL, 20" Style 128 wheels, KWv3, M5 steering wheel, M-Sport conversion, VRSF 7"FMIC [VTT Inlets..awaiting install] 2008 Lexus ISF I/H/E, Figs suspension arms, BC/swift, BC wheels, PSS (305 rears).... 1993.5 Supra 857 WHP, GT42R, CCW/R888...
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