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2010 2011 BMW 5 Series Forum F10 Bmw pressure converter warranty letter. |
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03-26-2019, 08:44 PM | #23 |
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On all (3?) failed units of mine, the ruptured diaphragm would make a sound like a buzz or honk you could hear with the windows rolled down. It was influenced by vacuum and use of the brakes would usually trigger it, and a throttle blip would often clear it. So every time I came to a stop this buzz would start.
I know the sound instantly now, and exactly what part it is. I guess mine never got to a point where they completely failed to operate or threw a CEL. All replaced under factory or extended warranty - I never even looked for stored codes. |
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03-26-2019, 10:23 PM | #24 |
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I got tired of these going out and having to drive 50mins away to take it the dealer to get them replaced. I knew these pressure convertor goes bad so I order them from FCPEURO. They have lifetime warranty on them. I order OEM ones so once they go out I just order a new one and send the old one back. Within a few days I get my money back.
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03-27-2019, 06:54 AM | #25 | |
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So - are the latest Pierburg ones from FCP failing in the same way still? i.e. no fixed design? I've debated ordering one and having it on the shelf since I figure it's going to happen again. |
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03-27-2019, 07:58 AM | #26 | |
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For those of you with this problem, are your engines stock or tuned? I am tuned with BM3 now but the 1st one went out before I added boost. The second one also started buzzing before I went with BM3. I am sure increasing boost is wearing them down faster.
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03-27-2019, 11:09 AM | #27 |
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I just installed MHD two days ago. All of my failures were stock, and not driven hard. I don't think that the failure mode should be affected much by tune, but could be affected by heat exposure under the hood.
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03-27-2019, 03:02 PM | #28 |
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The parts number I order is 11747649407. It has been 8 months now since I replaced it. But before this one it lasted about a year and a half. I'm still all stock beside a K&N air filter. Normal daily driving beside pushing it hard once in a while.
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03-27-2019, 06:32 PM | #29 |
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ezaircon4jc Were you able to find the letter regarding the pressure converter warranty? Did you get one for your 2014 as well or only the 2012? I assume this applies to all N55 PWG cars but I couldn't find a TSB for the warranty extension. Thanks in advance
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03-27-2019, 11:28 PM | #30 |
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You know, things went downhill after I made that post (open-heart on top of the rotator-cuff surgery!) and I completely forgot. I will try and get at it tomorrow. I did not get one for the 2014.
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03-28-2019, 07:14 AM | #31 | |
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My build date is 4/2011 or 5/2011 (different tools have different dates) and it says I have to use the older one. |
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03-28-2019, 12:58 PM | #32 | |
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03-28-2019, 08:33 PM | #33 | |
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03-28-2019, 10:53 PM | #34 | |
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Searched and searched and can't seem to find the letter . I have one more place to look but won't be able to for a few days. |
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06-12-2019, 07:48 AM | #36 |
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boost pressure solenoid fails again!!
Hi everyone,
my car 535i 2013, has 43k miles, and is the 3rd time i change this part. Anyone has a clue why it fails so much? I realized that fails for the noise. Thanks!! |
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06-12-2019, 10:19 PM | #37 | |
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Last edited by 535_BiTurbo; 06-12-2019 at 10:29 PM.. |
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10-27-2019, 02:32 PM | #39 |
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Pressure converter buzzing again! This one only lasted about 7 months. The OEM part and the Pierburg part seems to be the same - are there any other manufacturers that might have solved this issue?
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10-30-2019, 06:40 AM | #41 | |
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I don't know the labor rates, but it's fairly straightforward if you want to attempt a DIY. Here is a video I created this past summer that shows me replacing it on my 2014 535i: Like others have suggested, I purchased mine from FCPEuro so I can take advantage of the lifetime warranty. Edit: here is a video showing the noise I heard that prompted the replacement of mine and also a short clip after the replacement:
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10-30-2019, 07:35 AM | #42 | |
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