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Keep in mind new injector has to be programmed, and I'm not sure it can be done with the usual coding tools. Rheingold - may be, haven't explored it beyond basic diagnostics yet.
As far as the "proper" procedure, once the retaining bolts are removed, they should come out. The problem is that sometime there is corrosion buildup and they get stuck or seize... In which case you need at a minimum a sliding hammer, but it can be a royal PITA to get them out.

I think I remember seeing something about calibration injectors in the DIS under Function Selection. I think blue dragon has access to it...

Btw, if anyone finds the SIB it would be great if he could share it
 
I checked our 2009 35d last night and all 3 sections are cracked.

I'd be very curious to know if the new part is actually any different and I'm still looking for the SIB if anyone has access to it

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Discussion starter · #24 · (Edited)
So BMW is covering this. I had the tech show me the injector and the mini slide hammer that you use to get out the injector. You can clearly see where the water effects on injector number 5. The injector itself was corroded. The SIB calls for sealing the joints of the plastic cowling with some kind of black sealant as well. The cowling edges where they come together act as a drip edge, and the water just follows that route.
 
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Also, check the condition of plastic partitions at the back of the engine bay. If cracked/split, they leak water from rain, etc. into the bay and right on that injector.
Impressive.

:bow:
 
And she's bach home, diagnosis attached
Thanks for sharing!!!

The SIB 13 01 12 is about fuel injector faults: I'd be curious to see it and if it mentions anywhere the partitions.

Could you take a look at the partition they replaced and see if it is any different than the one that was there before? I'd take a look at mine and see if it has the same part number stamped. I'm trying to figure out if at some point it was upgraded or redesigned: all 3 sections of mine are broken...
 
Discussion starter · #30 ·
I don't think that it looks any different. I had already replaced them once when I installed my radar detector in 2011 and noticed they were cracked, so it could be that I had gotten the updated part then. The only difference with the cowlings is that there is now black butyl sealant at the seams
 
The issue with injector #5

Today I decided to take the partitions apart and replace it.

Here's how they looked: all 3 were broken along the seam

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I called the parts department at my local dealer and the conversation went something like this (I have a very good relationship with the parts department and have been doing business with them for quite a few years):
Me: "Hello it's me. I need part number A, B and C"
Her: "Are those the partition in the X5?"
Me: "Yes they are, great guess"
Her: "Oh we stock them because they break all the time"
Me: "I'm not surprised. If you could, would you be so kind to check with your techs if there's any sort of SIB on point?"
Her: "Sure, I'll call you back"
15 minutes later
Her: "No, their is isn't they just replace them"

So there it is: very common issue, but no SIB

In the meantime I decided to take it apart and discovered why this issue ends up causing issue with injector #5.

Although above the engine there is a bunch of stuff it all sits in front of the black plastic cowl you see in the back on the engine so it really doesn't add any protection. Moreover there is a sound proofing foam right over the engine that is exposed between the cowl and the airbox and it can easily act like a sponge. It is contoured so it is in contact with whatever is underneath. Last but not least there is a valley in the contour where water accumulates.

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And guess what is right under that valley? Yes, injector #5!!! In my case I discovered corrosion on the fuel line of injector #5 going from the fuel rail to the injector pump. Right below the fuel line is where the connector is.

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What I decided to do is remove the foam: it is technically a sound proofing foam, but I honestly didn't notice any change in noise. This way water should flow if it ever gets there.

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Now lets go back to the partition. It is such a royal piece of $hit that I went pick up a new one that was already cracked so I had to return it. But it appears that someone has noticed the flaw: the center piece is not made of compressed vomit but plastic and is much more robust: it still retained the same part number. Also noticeable is the different gasket profile.

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Tomorrow I'll go back pick up the new side that was broken but I'll ask to investigate if maybe that is some old inventory... Stay tuned!!!
 
We should start reporting this to NHTSA as a potential safety event ("Loss of power leading to loss of control")... 10-20 reports and BMW is facing an investigation.
 
We should start reporting this to NHTSA as a potential safety event ("Loss of power leading to loss of control")... 10-20 reports and BMW is facing an investigation.
Well the loss of power is one thing, but a corroded fuel line delivering diesel at 25,000 psi is a receipt for unplesent things to happen.

I think what would help is to assemble pictures of several cars that exhibit similar things... But I'm not familiar at all with those kind of investigatinos
 
We should start reporting this to NHTSA as a potential safety event ("Loss of power leading to loss of control")... 10-20 reports and BMW is facing an investigation.
LOL, investigation of what, exactly? Part that fails prematurely? - an updated part has been supplied for quite a while already. Corrosion due to leaking water due to failed partition? - it's the owner's responsibility to check things between services. Poorly engineered design? Buy another brand/newer vehicle.

Not defending BMW here, just pointing an obvious waste of time. Although you seem to have plenty, so yeah, go ahead...
 
LOL, investigation of what, exactly? Part that fails prematurely? - an updated part has been supplied for quite a while already. Corrosion due to leaking water due to failed partition? - it's the owner's responsibility to check things between services. Poorly engineered design? Buy another brand/newer vehicle.

Not defending BMW here, just pointing an obvious waste of time. Although you seem to have plenty, so yeah, go ahead...
dude, whats your problem?

It isnt 'the owners responsibility' to check this stuff- from a regulatory or legal perspective- if BMW doesnt tell us we need to check this between services.

I had a 10 yeat old VW product recalled for a defective relay that could cause the car to stall.

When a product defect can lead to a safety event, there is no limit on what caused that safety event- leaking water, plastic breakdown, etc.

I dont have the issue, so I have no standing to file a report. If I did, I would take the 2 minutes to file it online
 
Part that fails prematurely? - an updated part has been supplied for quite a while already.
In my case the only part that had different design is the center one; the other two pieces are the same as the old one. Where they all three supposed to be different?

My dealer doesn't have anymore in stock so he had to order a new one: we'll see when I comes in of maybe the new inventory has the same design of the center part.

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