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florida2002m3 florida2002m3 is offline
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Default N55 Injector help - 03-05-2018, 11:58 AM

It is hard to search for a DIY since every google "N55" search turns up 98% n54 stuff. But, I have a handle on most of it. I got the correct removal tool (2 different generations) and the correct injectors (2 different generations), Bosch from RA. I have the couplers, and ready to code them up.

I know that the n54 injectors come with compression caps for the expanding seal. But with the limited info out there about the n55 injectors it is hard to tell if they should come with caps or not, and if not then is there a tool that is used to compress them just before installation?

My injectors came without caps, and look like all the n55 injector's pictures on ecs/turner/fcp websites. Can anyone with experience on the N55 injector install please let me know about this?


2010 535i, 6mt, 80k miles, BMS DCI, JB4 G5, BMS WMI (CM10), VRSF Inlets, VRSF **, ETS 5" FMIC, VRSF CP/HKS BOV, Walbro 450, E85 BEF, E50.

2011 535i, 6mt, 1000k miles, BMS intake, JB4, VRSF **, muffler delete.
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NorCalN55 NorCalN55 is offline
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Default 03-05-2018, 06:09 PM

Quote:
Originally Posted by florida2002m3
It is hard to search for a DIY since every google "N55" search turns up 98% n54 stuff. But, I have a handle on most of it. I got the correct removal tool (2 different generations) and the correct injectors (2 different generations), Bosch from RA. I have the couplers, and ready to code them up.

I know that the n54 injectors come with compression caps for the expanding seal. But with the limited info out there about the n55 injectors it is hard to tell if they should come with caps or not, and if not then is there a tool that is used to compress them just before installation?

My injectors came without caps, and look like all the n55 injector's pictures on ecs/turner/fcp websites. Can anyone with experience on the N55 injector install please let me know about this?
You need the decoupling element (silver metal ring). Part# 13537577649. Verify with realoem.
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florida2002m3 florida2002m3 is offline
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Default 03-05-2018, 06:45 PM

Yes, of course the decouplers. Got those too.

So i asked my wife to open a box and send me a picture of the injectors. I guess RA sent me one used/returned injector and that was the one she opened. The box was unsealed and the injector was not in plastic and was missing the end cap. Needless to say, i am exhanging that one.

The others have small caps on them, does not look like a compression cap. More like a clear plastic protection cap. Any insight as to whether I need to compress these suckers, or did other people just slide em in, haha?


2010 535i, 6mt, 80k miles, BMS DCI, JB4 G5, BMS WMI (CM10), VRSF Inlets, VRSF **, ETS 5" FMIC, VRSF CP/HKS BOV, Walbro 450, E85 BEF, E50.

2011 535i, 6mt, 1000k miles, BMS intake, JB4, VRSF **, muffler delete.
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Weehe Weehe is offline
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Default 03-05-2018, 08:03 PM

You don't need special tools to replace our injectors. It's very straight forward. If an injector is stuck, get an open ended wrench and rotate it in the hole. All the injectors I've seen just have a protective cap on the tip. There is nothing to compress on the tip.
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NorCalN55 NorCalN55 is offline
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Default 03-05-2018, 08:59 PM

Quote:
Originally Posted by Weehe
You don't need special tools to replace our injectors. It's very straight forward. If an injector is stuck, get an open ended wrench and rotate it in the hole. All the injectors I've seen just have a protective cap on the tip. There is nothing to compress on the tip.
+1.
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florida2002m3 florida2002m3 is offline
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Default 03-06-2018, 11:01 AM

Tried to pull the #1 injector on sunday, wasnt budging, I didnt wanna break it off. So I ordered the $100 tool. will be here tomorrow. I didnt want to force it, i found a gnarly thread somewhere about the injector snapping off in the head...... so i figured i wouldnt gorilla it out.

Thanks for the help


2010 535i, 6mt, 80k miles, BMS DCI, JB4 G5, BMS WMI (CM10), VRSF Inlets, VRSF **, ETS 5" FMIC, VRSF CP/HKS BOV, Walbro 450, E85 BEF, E50.

2011 535i, 6mt, 1000k miles, BMS intake, JB4, VRSF **, muffler delete.
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Weehe Weehe is offline
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Default 03-06-2018, 11:06 AM

Even with the tool you will probably need to rotate it a bit to loosen it. Just pulling straight up only works 50% of the time
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Default 03-06-2018, 03:16 PM

I believe TIS says to use the tool to install the injector to a specific TQ.

Are you guys just pushing in the injector and installing?


2014 F10 535i N55 PWG
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Weehe Weehe is offline
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Default 03-08-2018, 09:58 AM

I pushed in the injector and torqued the bracket that holds it down.
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NorCalN55 NorCalN55 is offline
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Default 03-08-2018, 10:11 AM

Quote:
Originally Posted by Weehe
I pushed in the injector and torqued the bracket that holds it down.
+1. I marked the position of all hardware in order to return them to their proper position because I did not know the torque specs on the bracket.
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Default 03-10-2018, 09:25 PM

Quote:
Originally Posted by Weehe
I pushed in the injector and torqued the bracket that holds it down.
Works fine doing this? No issues?

I assume the injector bracket can has a seat where it can only get tightened so far and where it gets tightened to each time aganist this seat?

Quote:
Originally Posted by NorCalN55
+1. I marked the position of all hardware in order to return them to their proper position because I did not know the torque specs on the bracket.
this technique worked good for you? No leaks or issues with the injector?


2014 F10 535i N55 PWG
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Weehe Weehe is offline
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Default 03-10-2018, 11:14 PM

Quote:
Originally Posted by 5soko
Works fine doing this? No issues?

I assume the injector bracket can has a seat where it can only get tightened so far and where it gets tightened to each time aganist this seat?



this technique worked good for you? No leaks or issues with the injector?
No issue for the last 10k after I swapped mine. I just tightened the bracket snug.
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NorCalN55 NorCalN55 is offline
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Default 03-11-2018, 10:08 AM

Quote:
Originally Posted by 5soko
Works fine doing this? No issues?

I assume the injector bracket can has a seat where it can only get tightened so far and where it gets tightened to each time aganist this seat?



this technique worked good for you? No leaks or issues with the injector?
Yes, it worked well for me.
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Default 03-12-2018, 06:45 PM

Quote:
Originally Posted by Weehe
No issue for the last 10k after I swapped mine. I just tightened the bracket snug.
Thanks!

Quote:
Originally Posted by NorCalN55
Yes, it worked well for me.

Thanks!


2014 F10 535i N55 PWG
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florida2002m3 florida2002m3 is offline
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Default 03-14-2018, 07:40 AM

All injectors and plugs changed, fixed the BIG problem of fuel coming out of tailpipe..... etc. the tool may not be needed, but it deff made me feel a little better since i have a tendency to break things I am glad I didnt gorilla it out. time to start another thread with the next problem.

Conclusion:
Rock auto bosch parts work
Tool helped a lot
coded with inpa in german
car runs


2010 535i, 6mt, 80k miles, BMS DCI, JB4 G5, BMS WMI (CM10), VRSF Inlets, VRSF **, ETS 5" FMIC, VRSF CP/HKS BOV, Walbro 450, E85 BEF, E50.

2011 535i, 6mt, 1000k miles, BMS intake, JB4, VRSF **, muffler delete.
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houtan houtan is offline
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Default 03-14-2018, 07:56 AM

could you please share what steps you did to code the injectors and what information you used on the injector? Would be helpful for others in the future.
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Default 03-16-2018, 06:32 AM

Quote:
Originally Posted by houtan
could you please share what steps you did to code the injectors and what information you used on the injector? Would be helpful for others in the future.
Yes. Have Inpa installed and would love to know as well
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terryd5150 terryd5150 is offline
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Default 03-16-2018, 04:55 PM

Quote:
Originally Posted by florida2002m3
All injectors and plugs changed, fixed the BIG problem of fuel coming out of tailpipe..... etc. the tool may not be needed, but it deff made me feel a little better since i have a tendency to break things I am glad I didnt gorilla it out. time to start another thread with the next problem.

Conclusion:
Rock auto bosch parts work
Tool helped a lot
coded with inpa in german
car runs
So you didn't need to compress the seals on the tips of the injectors (like you do on the an N54)?
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Default 03-16-2018, 10:29 PM

Quote:
Originally Posted by houtan
could you please share what steps you did to code the injectors and what information you used on the injector? Would be helpful for others in the future.
I use and many others, ISTA.. The steps are easy and all explained within ISTA.. INPA is old and not very useful nowadays.
BMW has 2 options for our injectors. One is an option to read the current model injector your car is using.. Eu5 or Eu6..
The second option is to input the Eu5 injector #'s per injector.
Eu6 injectors i believe dont need this option to manually input the injector values, only Eu5 injectors.



Quote:
Originally Posted by terryd5150
So you didn't need to compress the seals on the tips of the injectors (like you do on the an N54)?
That is only if you are re-using the injector, a new injector comes with everything needed to drop it right in.


2014 F10 535i N55 PWG
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Default 03-17-2018, 01:03 AM

Quote:
Originally Posted by 5soko
Eu6 injectors i believe dont need this option to manually input the injector values, only Eu5 injectors.
I changed injectors to my 2014 model (EU6). Each old injector had different values printed to them and those were coded in, new ones had same digits in everyone.

So I believe you have to change injector values even with EU6.


M135i xDrive EWG, JB4, Pure S2, Pure inlet, N20 tmap, c a tless, Wagner fmic, FTP chargepipe, Fuel-it PI, BMS PI controller, Fuel-it lpfp, ACF Performance back end flash. 10.9s @ 204km/h
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Default 03-17-2018, 12:48 PM

Quote:
Originally Posted by P.S
I changed injectors to my 2014 model (EU6). Each old injector had different values printed to them and those were coded in, new ones had same digits in everyone.

So I believe you have to change injector values even with EU6.
ISTA mentions this Eu6 values.. Im not sure i havent played with them.

Eu6 injectors on a 2015 N55 i checked had all the same values in ISTA for all injectors. I will check my 2014 values this week if i even have Eu6


2014 F10 535i N55 PWG
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