CTS Turbo Charge Pipe O-Ring Fitment Issues

pw0n · 09-10-2019, 08:57 PM

Hi all, was really hoping someone could help me with an issue I'm facing. My OEM charge pipe blew off, so I installed my CTS Turbo charge pipe (complete PITA, btw). I transferred both OEM O-rings to my CTS CP, but I noticed I couldn't get the CP to connect to the throttle body with the O-ring on. O-ring from CP to intercooler is completely fine.

I triple-checked that the top O-ring was on correctly (there was only one groove on the CP that allowed the O-ring to sit flush), but because it wouldn't connect, I ended up removing it and proceeded with the installation.

I took it for a test drive and when I hit 3.5k RPM, I heard a pop. Opened the hood and the CP was off again. I attached it back on via the C-ring, and planning on driving it slow.

Did I just receive a lemon or am I missing something obvious? Also, how bad is it that I run this car without the O-ring?

AK415 · 09-11-2019, 12:12 AM

Maybe lubricate and muscle it in?

I have a VRSF one, being gentle during my install didn't help. Eventually I got pissed and forced it in lol.

ali820 · 09-11-2019, 06:57 AM

Mine went in no issues. Are you sure it's in the right groove? Have you tried swapping the two rings?

McLaren720s · 09-11-2019, 08:29 AM

I’ve had no issues transferring my O rings and connecting my CTS Turbo ChargePipe pipe at either end.

badbread · 09-11-2019, 10:05 AM

No issues here either for over 2 years now. Check out my blog (not allowed to link it here) I have a detailed DIY for the CTS CP.

XutvJet · 09-11-2019, 10:07 AM

Try some dishwashing soap to lubricate the o-ring and the throttle body. The soap will then get sticky once it drys and will help hold the CP on.

pw0n · 09-11-2019, 04:08 PM

Thanks for the tips guys. I used some penetrating fluids as lubricant and muscled it in. Start to finish, took under 2 minutes. This time, I wasn't so gentle - worked like a charm

Orion4 · 09-12-2019, 04:41 PM

Hmmmm! Wonder if the penetrating fluid might be detrimental to the long term life of the O-ring?

pw0n · 09-12-2019, 06:54 PM

Quote:

Originally Posted by Orion4

Hmmmm! Wonder if the penetrating fluid might be detrimental to the long term life of the O-ring?

I thought penetrating fluids dry off? Worst case, I'd have to buy a new O-ring and use a different lubricant

wdeerfield · 09-12-2019, 08:10 PM

I used a little oil from the oil chargepipe blow by. I mean. It's gonna end up in there anyway so there is little harm is using that oil to lube the o ring

JaredG_F30 · 09-13-2019, 08:11 AM

I usually use a silicone spray to lube o-rings and fittings for assembly but you should be fine with the penetrating oil. Penetrating oils are generally made out of a blend of lower alkanols, lower alkyl benzenes, alkyl succinic acid, tert-dibutyl-p-cresol, polymethacryalate, zine dialkyl thiophsphate, and methyl silicone in a stock of paraffin bright stock lube oil.

The o-ring is probably made of PTFE due to it's high heat resistance and resistance to oils and methyl alcohol. It's also very resistant to the compounds in the penetrating oil.

Quote:

Originally Posted by pw0n

I thought penetrating fluids dry off? Worst case, I'd have to buy a new O-ring and use a different lubricant

AZ330FZL · 09-13-2019, 12:28 PM

Once I determined I had a boost leak coming from my CTS chargepipe and ordered and replaced the o-rings on each end placed them in the proper groove it just slid right on and poof, no more boost leak.

pw0n · 09-13-2019, 05:10 PM

Quote:

Originally Posted by JaredG_F30

I usually use a silicone spray to lube o-rings and fittings for assembly but you should be fine with the penetrating oil. Penetrating oils are generally made out of a blend of lower alkanols, lower alkyl benzenes, alkyl succinic acid, tert-dibutyl-p-cresol, polymethacryalate, zine dialkyl thiophsphate, and methyl silicone in a stock of paraffin bright stock lube oil.

The o-ring is probably made of PTFE due to it's high heat resistance and resistance to oils and methyl alcohol. It's also very resistant to the compounds in the penetrating oil.

Overkill of an explanation - love it!

Quote:

Originally Posted by AZ330FZL

Once I determined I had a boost leak coming from my CTS chargepipe and ordered and replaced the o-rings on each end placed them in the proper groove it just slid right on and poof, no more boost leak.

Out of curiosity, how can you tell if you have a boost leak?

JaredG_F30 · 09-16-2019, 07:52 AM

The engineer in me is very strong...

Quote:

Originally Posted by pw0n

Overkill of an explanation - love it!

Out of curiosity, how can you tell if you have a boost leak?

09-10-2019, 08:57 PM	#1
pw0n Second Lieutenant 43 Rep 205 Posts Drives: BMW 435i Join Date: Aug 2019 Location: Seattle iTrader: (0)	CTS Turbo Charge Pipe O-Ring Fitment Issues Hi all, was really hoping someone could help me with an issue I'm facing. My OEM charge pipe blew off, so I installed my CTS Turbo charge pipe (complete PITA, btw). I transferred both OEM O-rings to my CTS CP, but I noticed I couldn't get the CP to connect to the throttle body with the O-ring on. O-ring from CP to intercooler is completely fine. I triple-checked that the top O-ring was on correctly (there was only one groove on the CP that allowed the O-ring to sit flush), but because it wouldn't connect, I ended up removing it and proceeded with the installation. I took it for a test drive and when I hit 3.5k RPM, I heard a pop. Opened the hood and the CP was off again. I attached it back on via the C-ring, and planning on driving it slow. Did I just receive a lemon or am I missing something obvious? Also, how bad is it that I run this car without the O-ring?
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09-11-2019, 12:12 AM	#2
AK415 Lieutenant 197 Rep 417 Posts Drives: 2015 F32 435i Join Date: Oct 2018 Location: DFW iTrader: (1)	Maybe lubricate and muscle it in? I have a VRSF one, being gentle during my install didn't help. Eventually I got pissed and forced it in lol.
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09-11-2019, 06:57 AM	#3
ali820 Second Lieutenant 272 Rep 290 Posts Drives: '15 335i MPE 6sp Suzuka Grey Join Date: Oct 2017 Location: Vancouver iTrader: (0)	Mine went in no issues. Are you sure it's in the right groove? Have you tried swapping the two rings?
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09-11-2019, 08:29 AM	#4
McLaren720s Major 1476 Rep 1,286 Posts Drives: 2024 M4 Competition X Join Date: Jun 2019 Location: Seattle iTrader: (0)	I’ve had no issues transferring my O rings and connecting my CTS Turbo ChargePipe pipe at either end. __________________ 2024 BMW M4 Competition XDrive - Tanzanite Blue/Kyalami Orange - AST HAS - RaceChip
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09-11-2019, 10:05 AM	#5
badbread not good, but bad 333 Rep 361 Posts Drives: 2013 335i Join Date: Jun 2016 Location: Bay Area, CA iTrader: (3)	No issues here either for over 2 years now. Check out my blog (not allowed to link it here) I have a detailed DIY for the CTS CP. __________________ They are spelled BRAKES not breaks!!!! Oh FFS, not another spark plug thread! BreadsBMW on Youtube
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09-11-2019, 10:07 AM	#6
XutvJet Major General 5552 Rep 5,369 Posts Drives: 2011 Cayman Base, 2016 M235 Join Date: Mar 2016 Location: Kansas City iTrader: (-1)	Try some dishwashing soap to lubricate the o-ring and the throttle body. The soap will then get sticky once it drys and will help hold the CP on. __________________ The forest was shrinking, but the Trees kept voting for the Axe, for the Axe was clever and convinced the Trees that because his handle was made of wood, he was one of them.
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09-11-2019, 04:08 PM	#7
pw0n Second Lieutenant 43 Rep 205 Posts Drives: BMW 435i Join Date: Aug 2019 Location: Seattle iTrader: (0)	Thanks for the tips guys. I used some penetrating fluids as lubricant and muscled it in. Start to finish, took under 2 minutes. This time, I wasn't so gentle - worked like a charm
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09-12-2019, 04:41 PM	#8
Orion4 Lieutenant Colonel 481 Rep 1,572 Posts Drives: 2013 335i Sport Line Sedan Join Date: Aug 2009 Location: Melbourne, FL iTrader: (0)	Hmmmm! Wonder if the penetrating fluid might be detrimental to the long term life of the O-ring?
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09-12-2019, 08:10 PM	#10
wdeerfield A family of bimmers 2747 Rep 7,742 Posts Drives: '18 G01 X3M40i Join Date: Jan 2012 Location: Clifton Park, NY iTrader: (0)	I used a little oil from the oil chargepipe blow by. I mean. It's gonna end up in there anyway so there is little harm is using that oil to lube the o ring __________________ 2018 PB/Black G01 X3M40i \| 699M \| ZDA \| ZPP \| ZPX \| Maxton front lip \| X3M vents \| 15mm Spacers \| Diamond G20 style grills
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09-13-2019, 12:28 PM	#12
AZ330FZL First Lieutenant 47 Rep 331 Posts Drives: 2012 335i Sedan Sport Line Join Date: Jun 2012 Location: Phoenix, AZ iTrader: (0) Garage List 2012 BMW 335i Sport ... [0.00]	Once I determined I had a boost leak coming from my CTS chargepipe and ordered and replaced the o-rings on each end placed them in the proper groove it just slid right on and poof, no more boost leak.
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