Turbo Coolant hose replacement

[wallyman424]

I had a really slow leak from 2 out of 4 of my turbo coolant hoses, also my factory heat wraps were destroyed inside from the slow leak, and tore at the buttons.

I upgraded to high temp silicone. Instead of the oetiker clamps I used fuel injection hose clamps which worked perfectly. I refused to get the OEM heat wrap, so instead I used some DEI wrap.

Hose: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Clamps: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Heat Wrap: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

[technician117]

Nice work!

Try to remember to check back if you get a leak or especially if you don't after a year or so.

[SapphireM5]

Very nice thanks for posting. I think it's a much better repair than what bmw was doing. Also good call on the fuel injection line clamps, they are the right ones to use. I don't know why people use the worm style clamps on these hoses, they literally cut into the hose as you tighten them. This should be a nice long term fix. Happy holidays!

[Blaxwil]

I just ordered the same parts as my previous job isn't holding up. Will post progress and results. Thanks for sharing.

[yuriyx]

Is there oil or coolant coming thru these lines? because that type of hose in their description says

“Silicone hose is NOT compatible with fuel or oil; however, it is compatible with water and anti-freeze such as coolant.”

[wallyman424]

Coolant.

[yuriyx]

Originally Posted by wallyman424

Coolant.

thank you ! will get these ordered as well... i’m sure no one needs 5 ft or hosing, this same company selling the same one but shorter to save money here is the link

HPS 3/8" ID Black high Temp Reinforced Silicone Heater Hose, Max Working Pressure 80 psi, Max Temperature Rating: 350F, Bend Radius: 1-1/2"
https://www.amazon.com/dp/B01DIPN1AO..._xkV4DbZ5HVP4F

👍🏼

[Blaxwil]

I had a really slow leak from 2 out of 4 of my turbo coolant hoses, also my factory heat wraps were destroyed inside from the slow leak, and tore at the buttons.

I upgraded to high temp silicone. Instead of the oetiker clamps I used fuel injection hose clamps which worked perfectly. I refused to get the OEM heat wrap, so instead I used some DEI wrap.

Hose: https://www.amazon.com/gp/product/B0...UTF8&psc=1
Clamps: https://www.amazon.com/gp/product/B0...UTF8&psc=1
Heat Wrap: https://www.amazon.com/gp/product/B0...UTF8&psc=1

Appears the above Amazon link for the clamp is incorrect. Should be a 15-17mm clamp rather than a 14-16mm. I ordered everything as described. However, we're having a hard time (actually impossible) to slide the clamp over the hose while connected to the turbo line. Will have to use regular clamps until I get the correct ones.

[wallyman424]

Originally Posted by Blaxwil

I had a really slow leak from 2 out of 4 of my turbo coolant hoses, also my factory heat wraps were destroyed inside from the slow leak, and tore at the buttons.

I upgraded to high temp silicone. Instead of the oetiker clamps I used fuel injection hose clamps which worked perfectly. I refused to get the OEM heat wrap, so instead I used some DEI wrap.

Hose: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Clamps: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
Heat Wrap: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Appears the above Amazon link for the clamp is incorrect. Should be a 15-17mm clamp rather than a 14-16mm. I ordered everything as described. However, we're having a hard time (actually impossible) to slide the clamp over the hose while connected to the turbo line. Will have to use regular clamps until I get the correct ones.

That's odd, it's the same link to the stuff I ordered and I had no trouble

[wallyman424]

I just loosened them a little bit before i put them over the hose. Slipped on just fine

[Blaxwil]

Originally Posted by wallyman424

I just loosened them a little bit before i put them over the hose. Slipped on just fine

I don't know. That's crazy. I tried that as well. In fact I loosened them just about all the way off the threads and it still didn't work. I gave it a rest and will try again later.

[wallyman424]

Try this, put the clamps closer to the middle of the hose slide the hose over the tube end first and then slide the clamp over the hump. That's how I did it. It probably won't go if you have the clamp at the end of the hose and try to slide it over that way.

[wallyman424]

Or you could even put the clamps over the hardlines first, put the bare hose over the hardlines and then pull the clamps back onto it. That way you don't have to go over the hump.

It will definitely work.

[Blaxwil]

Just looked at the clamps closely and they're #14 instead of 15. That's why they won't fit. Oh well. Will send back to Amazon and try again next week.

[wallyman424]

Ah, well that's the problem then. Amazon fail.

[M5Rick]

Just ordered my 14-16mm F I clamps to replace the worm drive ones which cut into the hoses.

[jsnm]

Did you guys drain the coolant system and refill after doing this or just topped it off?

[M5Rick]

Originally Posted by jsnm

Did you guys drain the coolant system and refill after doing this or just topped it off?

No need to drain, it loses just a dribble.

[Ickdeep]

Originally Posted by jsnm

Did you guys drain the coolant system and refill after doing this or just topped it off?

No draining required but make sure the engine is cold before doing it.

[jsnm]

Cool thanks guys,I just did new turbos on mine I was curious if there was any issues with air in the system after.

[technician117]

Originally Posted by jsnm

Cool thanks guys,I just did new turbos on mine I was curious if there was any issues with air in the system after.

The system is self bleeding although you will want to fill and keep an eye on the level after the first start and keep filling the reservoir so you don't run it dry for too long. The electric water pumps have a preservation mode and will just turn off if they speed up in RPM too much (ie, sucking air not liquid) so it's hard to damage anything.

[SpeedProtocol]

I love posts like this. Especially when OEM design fails. Fix it better.

Ill be doing this "when" I get a leak. Maybe just proactively do it. Cheap enough.