NLA coolant hose

danix · 12-26-2018, 08:09 PM

I've got a unicorn and then some. Replacing heater hoses on the 524td, and this coolant hose is NLA. Can't find it anywhere.
Options:

mock one up with a few junctions and hope it doesn't leak (no thanks)
have a silicone hose company fabricate a replacement (sent email)
look at a universal solution like gates unicoil (too many bends I think)
go to an auto parts store and hope I find something close

Any other options I've overlooked?

D.Martijn · 12-27-2018, 06:06 AM

Do you happen to know the part number?

danix · 12-27-2018, 10:14 AM

Sure. 64211373181

AndrewBird · 12-30-2018, 05:02 PM

How about one of these things and some straight hose?

https://www.amazon.com/dp/B001QIYVN2..._8WvkCbJ95F1DA

roguetoaster · 01-02-2019, 09:08 PM

In theory you could reshape a hose if you could make a form, pressurize the form to 90 psi, and heat it at ~330F for ~20 minutes. Other than that being practically impossible on a home scale it's an option.

Since it's a heater core hose (I think) how about finding one from an M20 E28? There's a good chance that they are similar.

danix · 01-04-2019, 12:13 AM

I checked the M20 diagrams, seems different. This is one of the hoses off the 4 way T.
I looked into the springy thing but there's 2 bends, different diameters at each end, and a little rise at one end.

My remaining options are: cut off a bit of the existing hose and clamp in a new spot, hoping it will reach. Or, ship this off to China somewhere, and have them make me one.
I don't think this can be 3D printed otherwise it would be a good candidate.

12-26-2018, 08:09 PM	#1
danix Advanced Member Join Date: Jan 2014 Location: Walnut Creek CA Posts: 141	NLA coolant hose I've got a unicorn and then some. Replacing heater hoses on the 524td, and this coolant hose is NLA. Can't find it anywhere. Options: mock one up with a few junctions and hope it doesn't leak (no thanks) have a silicone hose company fabricate a replacement (sent email) look at a universal solution like gates unicoil (too many bends I think) go to an auto parts store and hope I find something close Any other options I've overlooked? __________________ 1988 325iC SOLD 1985 524td 49k

12-27-2018, 06:06 AM	#2
D.Martijn E30 Addict Join Date: Sep 2016 Location: Belgium Posts: 574	Do you happen to know the part number? __________________ 1990 325iX Touring - November 2018 R3V Car Of The Month 1980 Volkswagen Golf mk1 1.1 1974 BMW 2002 Touring Instagram

12-27-2018, 10:14 AM	#3
danix Advanced Member Join Date: Jan 2014 Location: Walnut Creek CA Posts: 141	Sure. 64211373181 __________________ 1988 325iC SOLD 1985 524td 49k

12-30-2018, 05:02 PM	#4
AndrewBird The Mad Scientist Join Date: Oct 2003 Location: Portland, OR Posts: 11,599	How about one of these things and some straight hose? https://www.amazon.com/dp/B001QIYVN2..._8WvkCbJ95F1DA __________________

01-04-2019, 12:13 AM	#6
danix Advanced Member Join Date: Jan 2014 Location: Walnut Creek CA Posts: 141	I checked the M20 diagrams, seems different. This is one of the hoses off the 4 way T. I looked into the springy thing but there's 2 bends, different diameters at each end, and a little rise at one end. My remaining options are: cut off a bit of the existing hose and clamp in a new spot, hoping it will reach. Or, ship this off to China somewhere, and have them make me one. I don't think this can be 3D printed otherwise it would be a good candidate. __________________ 1988 325iC SOLD 1985 524td 49k

01-02-2019, 09:08 PM	#5
roguetoaster R3V Elite Join Date: Jan 2012 Location: Port Republic, MD Posts: 4,131	In theory you could reshape a hose if you could make a form, pressurize the form to 90 psi, and heat it at ~330F for ~20 minutes. Other than that being practically impossible on a home scale it's an option. Since it's a heater core hose (I think) how about finding one from an M20 E28? There's a good chance that they are similar.

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