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7 Series - F01 / F02 (2009 - current)
The new re-designed 7 series F01 / F02 leads off the BMW Fxx chassis code!

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  #1  
Old 02-15-2014, 06:23 AM
Missile Missile is offline
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Fuel Injector Issues

So I've been following the threads about bent and broken connecting rods due to hydrolock from faulty fuel injectors. It seems BMW has updated the injectors to "index 11" which are the latest.

I have a 740Li. Both connecting rod issues that I've seen here have occurred on the V8 N63 engine. Are these same injectors used on the N54 inline 6? Just curious, because, if so, I will be especially attuned to any engine issues such as rough idling, etc. Thanks for any replies.
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Old 02-15-2014, 08:43 AM
dbs600 dbs600 is offline
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Quote:
Originally Posted by Missile View Post
So I've been following the threads about bent and broken connecting rods due to hydrolock from faulty fuel injectors. It seems BMW has updated the injectors to "index 11" which are the latest.

I have a 740Li. Both connecting rod issues that I've seen here have occurred on the V8 N63 engine. Are these same injectors used on the N54 inline 6? Just curious, because, if so, I will be especially attuned to any engine issues such as rough idling, etc. Thanks for any replies.
Where does it say "Index 11"? Is it a part of the part number? Thanks.
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Old 02-15-2014, 09:03 AM
Missile Missile is offline
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Yes, I think so. I believe at the end of the part number I think it's "-11".
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Old 02-15-2014, 09:10 AM
dbs600 dbs600 is offline
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Yes, I think so. I believe at the end of the part number I think it's "-11".
Okay; thanks!
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Old 02-15-2014, 12:29 PM
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There are 3 versions of these injectors. See part numbers in pic. You want an 11 or higher index number. The other pic shows an index 9 injector.


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Old 02-15-2014, 03:15 PM
dbs600 dbs600 is offline
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Thank you!
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Old 02-15-2014, 03:39 PM
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Although I'm not having any problems, I'd like to know just how many here are or have???

I mean there is no standing recall or puma case that I've identified.

So is this isolated and one may or may not experience issues?

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Old 02-15-2014, 04:00 PM
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wjjklj wjjklj is offline
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Originally Posted by TXSTYLE View Post
Although I'm not having any problems, I'd like to know just how many here are or have???

I mean there is no standing recall or puma case that I've identified.

So is this isolated and one may or may not experience issues?

Thanks!

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Marcus - do you have a scanner? I am curious what your true running values are by cylinder. I have 7 cylinders that show close to zero which I think is ideal and one showing -6.00. I posted over in the E65/E66 forum as there are many that do maintenance themselves and understand these things more than I. I would bet this is more common than we know since BMW has replaced injectors 3 times now. I just don't want to hydro lock my engine.


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Old 02-15-2014, 04:34 PM
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Originally Posted by wjjklj View Post
Marcus - do you have a scanner? I am curious what your true running values are by cylinder. I have 7 cylinders that show close to zero which I think is ideal and one showing -6.00. I posted over in the E65/E66 forum as there are many that do maintenance themselves and understand these things more than I. I would bet this is more common than we know since BMW has replaced injectors 3 times now. I just don't want to hydro lock my engine.


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Actually I do. Guess I need to know exactly what to look for and or read on the scan.

Any help identifying potential issues is appreciated....
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Old 02-15-2014, 05:19 PM
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Marcus I have an iOBD2 scanner that sends a wireless signal to my iPhone or ipad. If I run a check on all modules and then go into the DME module I can look at each cylinder under a option called True Running Test. I think some programs call it a smooth running test. This is what my cylinder readouts say along with pics of what my scanner looks like. I highly recommend this scanner. Picked it up from xcar360.com and it is so nice just to download the app and use my iPad. What scanner do you have? Are you experiencing any rough idle or other symptoms?Click image for larger version

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  #11  
Old 02-15-2014, 05:51 PM
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I have one I bought from Amazon that has a near excellent review from all who bought it. I purchased the 'Torque' app from Google and together they work very nicely! Guess I haven't really paid much attention since all i look for are "error codes".

Guess I need to determine exactly what to look at once I'm jacked in....
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Old 08-06-2014, 09:04 AM
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I have the same issue, my car is in the shop and one of the injectors seems to be BAD!!! BMW really needs to get their act together on this crap, they are not cheap, and it seems you have to replace the whole BANK, which is 4 injectors, roughly $1500/bank, there goes the bank!
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Old 08-06-2014, 05:38 PM
kpumroy kpumroy is offline
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I still check in on this forum hoping BMW sorts these problems out. From my research I am not sure if its an injector issue alone. It may be a combination of injector, crankcase ventilation and ethanol blended fuel. In any case BMW needs to stand behind their product. Which they have not.
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Old 08-06-2014, 05:55 PM
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Originally Posted by kpumroy View Post
I still check in on this forum hoping BMW sorts these problems out. From my research I am not sure if its an injector issue alone. It may be a combination of injector, crankcase ventilation and ethanol blended fuel. In any case BMW needs to stand behind their product. Which they have not.
Agreed with ALL of this!
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Old 08-07-2014, 01:27 PM
Rdsii Rdsii is offline
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Can you provide where you been reading about this:

broken connecting rods due to hydrolock from faulty fuel injectors.

It is hardtop believe a open fuel injector can fill a combustion chamber to cause engine failure.

I need to read about this..

thanks
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Old 08-14-2014, 08:09 AM
light1 light1 is offline
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so after 2 weeks of troubleshooting, the local shop narrowed it down to injector(s) or a thorttle, the shaking while accelerating, but, it's not bad enough for warranty to fix it. So I have 2 choices now, drive it as is and hope it fails or pay out of pocket. Each bank of injectors is about 1K to replace, including labor, and if that's not the issue, then it's about 2500 to replace the torque convertor.

This sux, I am going ot drive it and see what happens, it's not horrible, but it's noticeable esp when cold. I don't know why BMW doesn't come up with a recall for this stuff, totally unacceptable.
BTW, these guys @ RRT are amazing, they spent 2 weeks and didn't charge me a dime...real good guys for anyone looking for an awesome shop in the DC Metro area.

does anyone know if we can use "used" injectors? bad idea?
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Old 08-14-2014, 08:37 AM
BMW7XAudi BMW7XAudi is offline
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Just replaced Injectors then back again for another bad inject

I went in with no codes showing up, but the car was shaking on accel. and almost stalling out especially in reverse. After a day or two of 0 findings they finally asked if one of the guys could take it home. Wasn't feeling great about that idea, but I needed it fixed. He came back the next day and decided to replace injectors under warranty for approx. 2500. I got it back and drove it for a day. Still not right. Finally it decided to put itself into "limp mode". Brought it back again. They said one of the injectors was weak so they replaced it and did something else for another 900.

I didn't even get a loaner either time. First was a sched appointment. They tried to cancel on me because of the loaner situation they were having. second time 0 loaners. I saw one come in when I was leaving, but they couldn't give me that one. pain in the tuckus.

B
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Old 08-14-2014, 10:25 PM
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Wow, 1 out of 8... That sucks, the quality control at the injector manufacture sucks! If my math is correct that's a 12% failure rate. I think it's time to talk to corporate!

jeff
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Old 08-14-2014, 10:50 PM
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This injector issue is a foking travesty. I've contemplated selling as is and grabbing something else. But since the car is paid and still very nice inside and out, I'll go ahead and do all new injectors and hold out. I was tempted to snatched this 2011 CLS recently...
Guess I'll just do my typical 2yrs and see what floats my boat next summer...

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Old 08-15-2014, 05:04 AM
Jerry 745Li Jerry 745Li is offline
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I'm just curious as to why many members are experiencing this problem after warranty. I had all 8 of mine replaced and the problem presented itself at 21K miles. Were people just ignoring the symptoms or were the injectors just failing outside warranty?

jerry
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Old 08-15-2014, 08:12 AM
BMW7XAudi BMW7XAudi is offline
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I was covered. It started acting up before 30k. Its a real headache to go back and forth.
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Old 08-15-2014, 09:11 AM
light1 light1 is offline
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I was in warranty, but BMW ignored me and didn't acknowledge it, I had the issues the last month of my warranty.


BMW7xaudi, so you car is fine now after all 8 injectors being replaced? No more stutter? 2K isn't bad, a new car alone will be 2k in taxes.
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Old 08-15-2014, 09:14 AM
BMW7XAudi BMW7XAudi is offline
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they replaced all and then I went back a few days later to have one of the new ones replaced along with a few other things. I think it is about 95% fixed. still not totally correct. wish I could hook it up to see how the injectors are working. I paid to drive back and forth to the dealership 8x but nothing else. they covered everything. cost would have been about 3600.

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Old 08-15-2014, 10:25 AM
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Quote:
Originally Posted by Jerry 745Li View Post
I'm just curious as to why many members are experiencing this problem after warranty. I had all 8 of mine replaced and the problem presented itself at 21K miles. Were people just ignoring the symptoms or were the injectors just failing outside warranty?

jerry
In my case: 09' bought with a paltry 40k miles on her in March of 13'. She now has only 48k miles (yeah that's a meager 8k miles in 17 months!). My warranty expired late last year. The issue only began @ a month ago. But I have scoured the net and been to many forums and blogs. This injector issue is almost a "roll of the dice". Some folks get it under warranty with miles as low as 11k and I have read a guy not getting it til nearly 80k! By far and large it happens outside of warranty. Thus the "engineered to fail" talk and belief.
I got BMW NA involved and sent them a lengthy detailed email with various examples including the reason as to why the injectors have been revised 5 or 6 times since the F0 was introduced! I was offered half of the repair and replacement of all cylinders. Which is far less than the cost of an extended warranty. But still not pocket change.
I am convinced they know and acknowledge the issue but refuse to address or claim the issue UNTIL it actually happens! Kinda like, "It's there but maybe or maybe not."
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