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      08-13-2019, 02:22 AM   #1
jbarron16
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BMW N20 Turbo Coolant Lines Replacement DIY

Hey guys I'm kinda a newbie around here been browsing around for some time now but receptively in dire need of some advice. I have a 2013 BMW 328i with the n20 engine. currently in AZ where the heat and time has ate away at my coolant lines O rings that feed and return to my turbo. instead if only replacing the O rings i decided to replace the whole part

Product Here:
https://www.bimmerworld.com/Exhaust/...-X3-X4-Z4.html

I have been looking everywhere for advice on how to replace or even tips on replacement. i have found some literature that ill link to this post that I will use to guide me throw the removal but if anyone has some light to shed on some key points I am concerned about that would be great.

1) Looking at photos and under my car at the connectors for these lines they peak out where they connect to the turbo but i have not seen where they connect to the rest of the cooling system. diagrams i have posted show it to the engine block i believe but am not sure
Question: Do i have to remove the turbo to replace lines?
Sub- Question: if not how would i get around to the back of lines.

2) if the turbo is coming off will my electronic waste gate have to be readjusted. i looked pretty connected to the rest of the turbo and doesn't look like id have to remove that piece specifically would i have to readjust after?


if i could get some help on this guys i would really appreciate it.


Thanks,

Fellow enthusiast



Dina Turbocharge upgrade instructions:
http://files.dinancars.com/webresour...980939aa03.pdf



Removal of Turbo:

https://www.newtis.info/tisv2/a/en/f...rol/1VncVNIBeg


Understanding of engine components:

https://f30.bimmerpost.com/forums/sh...d.php?t=856528
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      08-13-2019, 04:16 PM   #2
jbarron16
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Bump

Come on guys anything?
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      08-13-2019, 05:00 PM   #3
Billfitz
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Removing and installing coolant return line is in newTis.
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      08-13-2019, 07:41 PM   #4
jbarron16
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Quote:
Originally Posted by Billfitz View Post
Removing and installing coolant return line is in newTis.
Thanks for the reply! I did see that removing the exhaust turbo charger is the first step for that but I also saw other users say it's possible without removing. To be honest I'd prefer not removing it but if it has too I will just wondering if anyone else had done it before.
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      08-13-2019, 10:07 PM   #5
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Removing the turbo is a major PITA, so I can understand not wanting to do that if at all possible. I haven't had to change my coolant lines so I can't say if it's possible or not. BTW, are you replacing the coolant line or oil feed line? Two separate items. Three actually, as there are two coolant lines, in and out.
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      08-13-2019, 10:41 PM   #6
jbarron16
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Quote:
Originally Posted by Billfitz View Post
Removing the turbo is a major PITA, so I can understand not wanting to do that if at all possible. I haven't had to change my coolant lines so I can't say if it's possible or not. BTW, are you replacing the coolant line or oil feed line? Two separate items. Three actually, as there are two coolant lines, in and out.
Yeah I'm hoping to take a look tomorrow on a lift to see if I can skip the removal and it's both the suppling and returning coolant lines
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      08-14-2019, 07:28 AM   #7
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The reason I asked is that the part you linked is the oil line, not one of the coolant lines.
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      08-14-2019, 11:32 AM   #8
jbarron16
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Quote:
Originally Posted by Billfitz View Post
The reason I asked is that the part you linked is the oil line, not one of the coolant lines.
midnight posts!! I put the wrong link. These are the parts that I bought.


https://www.ecstuning.com/b-genuine-...e/11538663516/


https://www.ecstuning.com/b-genuine-...e/11538663517/
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      12-23-2020, 03:30 PM   #9
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Quote:
Originally Posted by jbarron16 View Post
midnight posts!! I put the wrong link. These are the parts that I bought.


https://www.ecstuning.com/b-genuine-...e/11538663516/


https://www.ecstuning.com/b-genuine-...e/11538663517/



Did you ever successfully install these parts yourself ?
One of mine is leaking coolant.
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      10-23-2021, 09:45 PM   #10
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Same boat, anyone tackle the upper coolant line?
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      11-25-2021, 06:35 PM   #11
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Same here, dripped on the exhaust and I smelled it
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      01-18-2022, 10:57 AM   #12
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Currently at the dealership

In for an oil change. (I have a disdain for changing oil) They are getting me an estimate for turbo coolant lines. I'm obviously not having them do it! Have you guys had any luck DIY?
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      01-29-2024, 08:35 PM   #13
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Seems like lots of people are having issues woth these leaking, but there doesn't seem to be a good write-up on how it's done. I am about to tackle this on my 2015 320i. It doesn't look like it's possible to change the lines without removing the turbo, but I found a good video on YouTube I wanted to share with you guys, since I'm going to try this before removing the turbo.

This guy reasons that the leak is likely coming from the turbo side of one or both of those lines. Since they are situated so close to the exhaust manifold, it does seem reasonable that these gaskets would certainly deteriorate faster, causing a minor coolant leak. In my case I didn't notice any coolant leaks at all. A couple weeks ago, the head of the coolant bleeder screw in my expansion tank blew off on the highway, leaving me stranded. I had it towed home, drained the cooling system, installed a brand new expansion tank, aluminum coolant flange, and since I was right there anyway, did the upper radiator hose, and vent hose (to expansion tank).
When I pulled vacuum on the system to fill it, I could see that there was a small leak somewhere because the guage was dropping. I turned off my compressor to listen, and sure enough, I could hear a tiny pinhole leak sucking in air. I couldn't actually see it, but it was coming from the turbo. What I COULD see was some white residue on my exhaust manifold that I believe is from coolant. Anyway, I'm gonna try it, and here is the video. I'll take pics and report back to y'all after I get done.

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