BMW dealership couldn't resolve a check engine light after 5 visits over 3 months...

[dworthy]

Do the driving experience, for I did one last year, and it was a blast!

The car club I am part of did a display for their 40th Anniversary, I got a chance to drive a M3, X5, I3 and I8.

[Breeze1]

Manny,
I've been following your story and like the others here admire your patience. I'd have been less composed.
Hopefully this is over but I have to agree with Chris that a reset doesn't change anything. Perhaps something else your indy has done coincidental has cured it.
I see you were offered to attend a "driving experience". I urge you to take them up on it. While I've never attended BMW's version I've attended others and it was great fun. Nothing like an opportunity to flog the bejeezus out of a future "demonstrator". Maybe a good way to take out your frustrations over this.
If the brakes ain't smoking after two laps you're not trying!

Did that once during a demo day aimed at promoting a newly released compact sports car (not a Bmw), I laugh everytime I think about it and it was like 15 years ago lol.

[White94RX]

Keep us updated if the fault returns. I hope I was right with my diagnosis of a bad MAF.

[Manny G.]

Keep us updated if the fault returns. I hope I was right with my diagnosis of a bad MAF.

I think that at this point I can safely say that the initial problem was indeed a bad/dirty MAF.


Things have gotten a little more fun now,... a new challenger has stepped into the arena: high pressure fuel pumps! yay


The CEL came back on after my last post when the adaptations were cleared. The shop did some smoke testing, found no leaks from intake side... smoke tested from exhaust side and found leak coming from the turbo/cat area under the heat shield.. and at the secondary O2 sensor.... tech said the O2 was only finger tight. Fixed that, 2nd leak found at the downpipe connection on BOTH sides.

Fixed that, still lean code. We scratched our heads a bit being that there were no more air leaks, .. the tech then decided to test the fuel pumps. He noticed one had below spec fuel flow, and when swapping them around, the CEL fault followed the bank. Thankfully, these high pressure fuel pumps are under an extended BMW warranty just like the injectors were.

I paid the independent BMW specialist out of my pocket to clean up the shitty work the tech from the dealer left undone. Literally, undone. It was as if he stopped to take lunch before tightening everything down and never came back. I also found out from techs from another dealership that the 2 bolts that hold down the ECUs are important grounds for the ECU itself.. they both have to be torqued to spec. These are the very same bolts that I noticed was missing (later found in the belly pan) and the other only half way screwed down.

I reluctantly am taking it to another dealer because I am forever scarred by the experience. I cannot get the fuel pumps under warranty any other way unless I go to there.


I really hope this is it.

[ross1]

You are one patient SOB.
I'd be in jail and that moron at your dealer would be in hospital by now.
How far a drive from your local in Fl to see Mr dirtracer in NC?

[dworthy]

+1

That tech needs to be written up in my book! I have a 2015 114i which supposed to had 2 oil changes by now according to the service book. Both oil changes were done outside the dealership, but still upon purchase they should have looked at the car. When I asked for an oil change as I didn't think it had ever been done, and surprise it had the original BMW oil filter.

I am going to take a shot in the dark here on the STFT and the LTFT. So this car has two high pressure fuel pump which is powered by the engine's camshaft. When the values are so high, and you cannot find any vacuum leaks, I would suspect that one or both are leaking fuel into the engine. Too bad there isn't a dipstick to see if the motor is overfilled, but you might be able to sniff out the oil filler cap area to see if the crank does smell a bit like fuel.

I maybe wrong, but it is worth thinking about.

I am glad to be able to offer some help.

[Manny G.]

Oh boy... lol you guys aren't going to believe this.

Dealer started from scratch with my issue tracing the steps and following up on the documentation from the other dealers repairs. They said that "the dealer installed the wrong injectors". The injectors were still the old version (5) rather than the new updated warranty version (6).

I bet this is what made it look like the fuel pumps flow was off... don't know?

I'm waiting for the dealer to give me a call today to pick the car up as it should be done today. I'm taking it on another trip to Orlando this Sunday, good time to test out if the repairs worked.



Question... why would a dealer have a NEW set of older/defective version injectors to install onto a car? Is it far fetched for me to assume that they just never changed the injectors but said they did?

[Breeze1]

Oh boy... lol you guys aren't going to believe this.

Dealer started from scratch with my issue tracing the steps and following up on the documentation from the other dealers repairs. They said that "the dealer installed the wrong injectors". The injectors were still the old version (5) rather than the new updated warranty version (6).

I bet this is what made it look like the fuel pumps flow was off... don't know?

I'm waiting for the dealer to give me a call today to pick the car up as it should be done today. I'm taking it on another trip to Orlando this Sunday, good time to test out if the repairs worked.



Question... why would a dealer have a NEW set of older/defective version injectors to install onto a car? Is it far fetched for me to assume that they just never changed the injectors but said they did?

Anything is possible. Your car being relatively recent with a relatively low mileage, it might be impossible to differentiate between used injectors and "new old" ones. But then again, even the old injectors worked for the majority of the car's life, so if they were replaced with the same version but new, logic says that they should have worked as well...

[White94RX]

I believe the F10 M5 has the pencil style injectors? If that's the case, there are two versions. They are not old vs new. Some cars take the EU5 and some take EU6. If the wrong ones are installed, they will for sure set lean codes. We've seen it happen plenty of times. The tech probably just went to parts, asked for injectors, and installed them, not knowing any better. The parts catalog will show both. The tech has to look up which injectors it takes on ISTA. There's a service function that tells you which ones the vehicle calls for.

[Manny G.]

I believe the F10 M5 has the pencil style injectors? If that's the case, there are two versions. They are not old vs new. Some cars take the EU5 and some take EU6. If the wrong ones are installed, they will for sure set lean codes. We've seen it happen plenty of times. The tech probably just went to parts, asked for injectors, and installed them, not knowing any better. The parts catalog will show both. The tech has to look up which injectors it takes on ISTA. There's a service function that tells you which ones the vehicle calls for.

Yup, you nailed it. My last post was based off a quick explanation I got from the SA over the phone.. I didnt really understand what was going on at the time. When I picked the car up, my SA explained it with more detail.. basically i had EU6 injectors installed, and the ECU was looking for EU5 which was throwing the lean code.

Actual write up on the invoice:

66218 INCORRECT INJECTORS (INTERNAL WARRANTY LABOR PER *tech name redacted* INCORRECT FUEL INJECTORS INSTALLED AT LAUDERDALE BMW, LAUDERDALE SENT THE CORRECT PARTS, WE INSTALLED) CONNECTED BATTERY CHARGER AND PERFORMED VEHICLE TEST, FOUND FUEL MIXTURE FAULTS STORED, CHECKED HISTORY AND FOUND FUEL INJECTORS RECENTLY REPLACED AT A DIFFERENT DEALER. CHECKED AND FOUND EU6 INSTALLED, ENGINE CONTROL REQUIRES EU5 INJECTORS. REPLACED ALL 8 FUEL INJECTORS SUPPLIED BY LAUDERDALE BMW, CALIBRATED INJECTORS, RESET ADAPTATIONS AND CLEARED FAULT CODES.


Maybe its been so long since Ive driven it or i got used to driving all of the loaners, but she feels good again.. no hesitation or lack of power as i felt a few times before. Fingers crossed, I'm taking it for the Orlando ride this Sunday.. the fault code has popped up every time i did it.

[White94RX]

Hopefully this will be the end of it. At least until the next problem arises. Lol.

Sent from my Pixel XL using Tapatalk

[ross1]

Different dealer then?
I hope this is the end of this for you.
Given a solution now(fingers crossed)by another servicer a letter to BMWNA might be in order. The first dealer needs a tune up and you deserve something for your trouble.

[SAKHIRF10M5]

Hi! I know this is a couple years ago, but do you remember if the car was normal after this? Did something ever happen after this? I have a 2014 F10 M5 Comp now, and I had it on a a local dealership (BMW M approved).. And I had them change all 8 injectors, and after I got the car back the check eying light popped up in the speedo. the car was there once again and they did not found any faults.. But now I looked up the part number for the injectors that they changed to an that is the Euro6... Checked my M5 with ISTA and my car should have the Euro5. So I will call them and will believe they will change from the Euro6 injectors that they installed to Euro5 that I should have. And when that is done I think the car will be good again. But there is one thing that concernes me, and that's if the engine on my M5 have taken any damage from this.. Driving maybe 5000+ miles with wrong injectors.. Did anything ever happen to your car after they fixed it and installed the right Euro5 injectors? Thank you

[SAKHIRF10M5]

Hi! I know this is a couple years ago, but do you remember if the car was normal after this? Did something ever happen after this? I have a 2014 F10 M5 Comp now, and I had it on a a local dealership (BMW M approved).. And I had them change all 8 injectors, and after I got the car back the check eying light popped up in the speedo. the car was there once again and they did not found any faults.. But now I looked up the part number for the injectors that they changed to an that is the Euro6... Checked my M5 with ISTA and my car should have the Euro5. So I will call them and will believe they will change from the Euro6 injectors that they installed to Euro5 that I should have. And when that is done I think the car will be good again. But there is one thing that concernes me, and that's if the engine on my M5 have taken any damage from this.. Driving maybe 5000+ miles with wrong injectors.. Did anything ever happen to your car after they fixed it and installed the right Euro5 injectors? Thank you

[328 Power 04]

Hi! I know this is a couple years ago, but do you remember if the car was normal after this? Did something ever happen after this? I have a 2014 F10 M5 Comp now, and I had it on a a local dealership (BMW M approved).. And I had them change all 8 injectors, and after I got the car back the check eying light popped up in the speedo. the car was there once again and they did not found any faults.. But now I looked up the part number for the injectors that they changed to an that is the Euro6... Checked my M5 with ISTA and my car should have the Euro5. So I will call them and will believe they will change from the Euro6 injectors that they installed to Euro5 that I should have. And when that is done I think the car will be good again. But there is one thing that concernes me, and that's if the engine on my M5 have taken any damage from this.. Driving maybe 5000+ miles with wrong injectors.. Did anything ever happen to your car after they fixed it and installed the right Euro5 injectors? Thank you

There have got to be codes, do you have a scanner that can read BMW manufacturer codes from all modules? Even Bimmerlink will work fine.

What part number injectors were installed to your car exactly?

[SAKHIRF10M5]

Hi. The injectors that are installed in my car now is EU6 13538627842. I have checked my car with ISTA, from what I could understand was the only way to find out which injectors that is right for my car, and that should be EU5 13647599876. The car worked fine before they changed injectors. And I had another F10 M5 before, and I can for sure tell that my current M5 is lower on power.. So now I will go back to the dealership and have them change the injectors back to the right EU5 ones. After they have changed them Im sure the problem will be gone, but I was only concerned if the engine has taken any damage by driving it with the wrong injectors.. The car gets too low amount of gas now, and Im just afraid that even if it will be just fine now, maybe I drive half a year and then the engine will blow, because of me driving maybe 5000 miles with these wrong injectors.. Car seems fine, but just low on power.

[modular93fox]

So a follow up to all of this....

I finally had a chance to take the car into an independent BMW specialist shop here in south Florida

oooweee mannn hear A1++++++ stories about Flordia dealerships when in training.... be carefull, guard you wallet...

[Manny G.]

Hi! I know this is a couple years ago, but do you remember if the car was normal after this? Did something ever happen after this? I have a 2014 F10 M5 Comp now, and I had it on a a local dealership (BMW M approved).. And I had them change all 8 injectors, and after I got the car back the check eying light popped up in the speedo. the car was there once again and they did not found any faults.. But now I looked up the part number for the injectors that they changed to an that is the Euro6... Checked my M5 with ISTA and my car should have the Euro5. So I will call them and will believe they will change from the Euro6 injectors that they installed to Euro5 that I should have. And when that is done I think the car will be good again. But there is one thing that concernes me, and that's if the engine on my M5 have taken any damage from this.. Driving maybe 5000+ miles with wrong injectors.. Did anything ever happen to your car after they fixed it and installed the right Euro5 injectors? Thank you

My car has been very normal after all that drama 4 years ago with the injectors. I've put about 20-25k miles on the car since then, no issues whatsoever. The wrong injectors throw a lean code and the engine keeps trying to adjust fuel:air ratio to compensate, but 5k miles or so -shouldn't- cause any major issues that I would be aware of.

Good luck