[eurojulien]

Anyone get their red boost hose swapped out under cpo? They just denied mine today

[WreckerX5d]

Went to two different dealers, both denied and asked for $1200-1500 worth of parts/labor. It's $25 and a few hours of time to DIY. I think one guy managed to get his covered under CPO though. He called BMWNA.

[eurojulien]

Originally Posted by Wrecker335d

Went to two different dealers, both denied and asked for $1200-1500 worth of parts/labor. It's $25 and a few hours of time to DIY. I think one guy managed to get his covered under CPO though. He called BMWNA.

I though the hose was >$200 ? or are people just swapping out seals?

[9mmkungfu]

Originally Posted by eurojulien

I though the hose was >$200 ? or are people just swapping out seals?

I think that's just swapping out the seals. You'll need two @ about $6.30-$6.55 each:

1x 11618506786
1x 11617791470

In another thread, Yozh mentioned using two of the upper seals instead of one. Apparently there is an extra groove in the hose for two seals although the factory calls for one.

[WreckerX5d]

Originally Posted by eurojulien

I though the hose was >$200 ? or are people just swapping out seals?

Going by what my friend said, as he is a BMW dealership shop foreman, he just replaces the seals. He never once had to replace the hose.

I just followed his advice and swapped the seals.

[command_liner]

So far the local dealer has agreed to nothing, has not replaced the seals or replaced the hose.

Currently I am working on this issue as part of a bigger CBU mess. See the ugly details at https://www.flickr.com/photos/comman...7648552502623/

At 63,000 miles the car is parked, dead. BMW USA did all the scheduled service until the car started acting up just past 60,000 miles. What a wonderful experience this is.

[Hoooper]

^^^ Huh I didnt think that even looked nearly as bad as some of the others. If yours is throwing codes and out for the count, mine must have been right on the edge of developing issues when I blocked the EGR and went with meth. Strange how much further some cases are along than others.

[command_liner]

Originally Posted by Hoooper

^^^ Huh I didnt think that even looked nearly as bad as some of the others. If yours is throwing codes and out for the count, mine must have been right on the edge of developing issues when I blocked the EGR and went with meth. Strange how much further some cases are along than others.

Not sure what you mean by "that". The hose or the CBU in the intake runners, or the EGR or swirl flaps. Some of the intake runners were 40% occluded, and the swirl flaps needed to be cleaned to get them out of the intake. All of it is shockingly bad for "The Ultimate Driving Machine".

[Hoooper]

Originally Posted by command_liner

Not sure what you mean by "that". The hose or the CBU in the intake runners, or the EGR or swirl flaps. Some of the intake runners were 40% occluded, and the swirl flaps needed to be cleaned to get them out of the intake. All of it is shockingly bad for "The Ultimate Driving Machine".

"That" being the pictures you posted of the CBU, in general. Nothing looked like it was 40% blocked though so maybe the easy to see pictures are after some cleaning. I agree its pretty horrible when considered in a vacuum. When compared to some others that have been shown I dont think it looks that bad. Those of course were all at the stage of failure due to CBU though so its being compared to the worst of the worst.

[BB_cuda]

The intake runners looked pretty full to me. Your intake incoming throat was fairly thick too. I had looked at my intake throat and it was a thin film in comparison to your's. That was at about 25,000 miles though. I blocked EGR at 32,000. I'm installing gutted EGR housing soon and will snap another pic of throat. Your pics are screaming "install meth" to my ears. I don't think I have bad buildup BUT you don't know until intake is pulled

[locolobo]

Dealer replaced my red hose and seals at 35,000 miles due to a leak like yours, under the factory warranty.

[cbjr]

Here's a thread I started last year about my charge air pipe (which if I recall correctly, is the name of the red boost hose):
http://www.e90post.com/forums/showthread.php?t=1010962

The short answer is I got it covered by my CPO warranty, but they refused to admit that it was actually covered.

[Xtremektm]

My leak was fixed changing just the seals. Inspect the hose for any crack.

[Yozh]

Originally Posted by 9mmkungfu

I think that's just swapping out the seals. You'll need two @ about $6.30-$6.55 each:

1x 11618506786
1x 11617791470

In another thread, Yozh mentioned using two of the upper seals instead of one. Apparently there is an extra groove in the hose for two seals although the factory calls for one.

I keep checking my red boost hose after my seal install and it is squeaky clean, even as it sees 42psi once in a while. On the other hand, the seals between the actual EGR valve and the block off on the EGR cooler seem to seep a bit of oily mist. I do not have a catch can yet

[WreckerX5d]

The Forge hose is available on their website without special ordering now. Costs $165 after shipping. I ordered and installed it this past weekend. The adapter to the turbo is a pretty large pain to get it fully seated, but it can be done. Once the adapter is installed, removal of the IC or hoses gets pretty easy.

I need to reinspect it when I get my new seals in for the other side, as those have been broken again. I'll post whether or not it leaks. Power delivery does feel more complete than before.

[Chief Orman]

Originally Posted by eurojulien

Anyone get their red boost hose swapped out under cpo? They just denied mine today

I got mine repaired under CPO warranty at around 50k. What total bullshit to deny a perfectly valid warranty claim. Based on my experience and reading these threads having an issue with the red vacuum/oil return line is very common given the heat generated on this side of the engine. It is also my understanding that fixing this is a complete PITA given its location.

That all said I am talking about the small red hoses not the big one adjacent to the intercooler.

[Yozh]

If you are talking about a red vacuum hose that goes from the EUV to the compressor bypass vacuum actuator, it is quite easy to replace. Same goes for most of the vacuum lines.

[Chief Orman]

Originally Posted by Yozh

If you are talking about a red vacuum hose that goes from the EUV to the compressor bypass vacuum actuator, it is quite easy to replace. Same goes for most of the vacuum lines.

Yozh I could have sworn one of the vacuum and/or oil return lines was a problem because it plugged into one of the turbos in a very inaccessible spot. If I am wrong on this do you think it is worthwhile to have an indy swap out the small hoses for ones made from more durable, heat resistant material.

The reason I ask is because of all the repairs I have had done over the years getting one of the vacuum lines repaired had a huge impact on low end performance.

[Yozh]

Well, vacuum and oil returns are very different. You can easily change most vacuum lines yourself. I'll see if I can find a helpful picture for you about the EUV that feeds the red vacuum line to the compressor bypass.

[Yozh]

Chief, here you go. Red vacuum hose hooks up from the passenger side nipple of the EUV. It is a bit easier for me with the M3 cowl, you will have to take off your engine cover and the cowl and then you can put your hand in there and feel it. Some of the old hoses can be brittle and will break off the nipple. Then you will have to pull off the EUV to carefully remove the rest of the hose off it. But it just clips on to that metal bracket, and there is an electrical connector that has a spring release. The same valve is on your EGR cooler if you want to see how it looks and how the connections work.

[Chief Orman]

Originally Posted by Yozh

Chief, here you go. Red vacuum hose hooks up from the passenger side nipple of the EUV. It is a bit easier for me with the M3 cowl, you will have to take off your engine cover and the cowl and then you can put your hand in there and feel it. Some of the old hoses can be brittle and will break off the nipple. Then you will have to pull off the EUV to carefully remove the rest of the hose off it. But it just clips on to that metal bracket, and there is an electrical connector that has a spring release. The same valve is on your EGR cooler if you want to see how it looks and how the connections work.

Attachment 1267743

Great stuff...thanks yozh!