List of one time use bolts?

pooyab · 01-20-2022, 11:26 PM

I saw the comprehensive list of torque specs, is there a similar list or a supplement of TTY or one time use bolts on the car?

Planning to do subframe bushing and driveshaft swap, wanted to see if I should buy a new set of hardware for it or will it be fine to reuse.

Thanks.

SAMM3Y · 01-20-2022, 11:53 PM

I recently had a bolt snap on the rear right upper guide rod and it made a bit of a mess of my half shaft. Safe to say I went back and replaced all the arms and hardware. You should replace them.

GotV8? · 01-21-2022, 08:21 AM

I highly recommend since your subframe will be dropped, you are better off just getting all new bolts and washer...peace of mind. I purchased the bolts from FCP Euro, in the years to come,,,lifetime warranty will cover it

SAMM3Y · 01-21-2022, 12:18 PM

Here's a list of all the stuff I ordered which included new subframe bolts, all new arm bolts, diff bolts. Also a cheat sheet I found for torque values almost complete. Rear only

drrust · 01-21-2022, 03:13 PM

The bolts for the driveshaft are also one time use. However, the factory balances the driveshaft & differential. Depending on the year it may only have special washers (older) but some years have bolts with different threaded lengths, which are color coded. Unfortunately the heat shield makes this junction difficult to inspect ahead of time. It is likely that washers could be reused. It is likely a good idea to figure out if any of your bolts are a different color before you order the hardware.

This thread describes the issue.

https://www.m3post.com/forums/showthread.php?t=1231461

01-20-2022, 11:26 PM	#1
pooyab Major 330 Rep 1,158 Posts Drives: 2011 BMW M3 2020 BMW M5C Join Date: Jan 2014 Location: Bay Area, CA iTrader: (2) Garage List 2011 BMW M3 [0.00]	List of one time use bolts? I saw the comprehensive list of torque specs, is there a similar list or a supplement of TTY or one time use bolts on the car? Planning to do subframe bushing and driveshaft swap, wanted to see if I should buy a new set of hardware for it or will it be fine to reuse. Thanks. __________________ Interlagos Blue/Speed Cloth \| BayOptiks DTM Headlights \| Alpine Stage 2 \| KW Clubsport \| Resonated X-Pipe \| Eisenmann Race \| StopTech BBK \| TE37SL \| YFCM CF Driveshaft \| Hotchkis F/R Sways \| F/R Endlinks \| Turner Control Arms and Front Tension Bushings \| Powerflex Diff Bushings \| Turner Solid Subframe Bushings \| MS Underdrive Pulley and Intake \| Alpine DCT Tune \| Karbonius Intake \| Carbon Roof (TBD)
	Appreciate 0 Tweet Quote

01-20-2022, 11:53 PM	#2
SAMM3Y Colonel 3085 Rep 2,747 Posts Drives: 2008 m3 Join Date: Feb 2018 Location: NorCal iTrader: (2)	I recently had a bolt snap on the rear right upper guide rod and it made a bit of a mess of my half shaft. Safe to say I went back and replaced all the arms and hardware. You should replace them. Attached Images __________________ 9ers
	Appreciate 2 BOOF-M34451.50 jvictormp907.50 Quote

01-21-2022, 08:21 AM	#3
GotV8? Captain 1051 Rep 836 Posts Drives: Jerez E92 M3 ZCP "12" Join Date: Mar 2017 Location: OHIO iTrader: (0) Garage List 1996 Honda Prelude ... [0.00] 2018 BMW F85 X5M [0.00] 2012 E92 M3 ZCP [0.00]	I highly recommend since your subframe will be dropped, you are better off just getting all new bolts and washer...peace of mind. I purchased the bolts from FCP Euro, in the years to come,,,lifetime warranty will cover it
	Appreciate 0 Quote

01-21-2022, 12:18 PM	#4
SAMM3Y Colonel 3085 Rep 2,747 Posts Drives: 2008 m3 Join Date: Feb 2018 Location: NorCal iTrader: (2)	Here's a list of all the stuff I ordered which included new subframe bolts, all new arm bolts, diff bolts. Also a cheat sheet I found for torque values almost complete. Rear only Attached Images __________________ 9ers
	Appreciate 2 Ubersmooth315.50 jvictormp907.50 Quote

01-21-2022, 03:13 PM	#5
drrust Captain 336 Rep 724 Posts Drives: E90 M3 DCT Sedan Join Date: Jun 2016 Location: Cincinnati iTrader: (0)	The bolts for the driveshaft are also one time use. However, the factory balances the driveshaft & differential. Depending on the year it may only have special washers (older) but some years have bolts with different threaded lengths, which are color coded. Unfortunately the heat shield makes this junction difficult to inspect ahead of time. It is likely that washers could be reused. It is likely a good idea to figure out if any of your bolts are a different color before you order the hardware. This thread describes the issue. https://www.m3post.com/forums/showthread.php?t=1231461
	Appreciate 0 Quote