[srey]

Earlier this year when the price of Index 12 injectors doubled I thought it was a short-term supply issue, but it would appear that the high prices are here to stay. Too bad. I'm still on my Index 1's in my 03/07 build date 335i, and they seem to be going strong. It just makes me cringe a little when forecasting future maintenance items and tallying up cart totals.

[carguy138]

Originally Posted by srey

Earlier this year when the price of Index 12 injectors doubled I thought it was a short-term supply issue, but it would appear that the high prices are here to stay. Too bad. I'm still on my Index 1's in my 03/07 build date 335i, and they seem to be going strong. It just makes me cringe a little when forecasting future maintenance items and tallying up cart totals.

Wow you aren't kidding. A set of 6 injectors is nearly $2k

Any ideas why this is going on? I've noticed a few things lately go way up in price. For example, one 335is motor mount is nearly $700!

BMW's way of trying to kill off older models?

[DS3IAM]

Originally Posted by srey

Earlier this year when the price of Index 12 injectors doubled I thought it was a short-term supply issue, but it would appear that the high prices are here to stay. Too bad. I'm still on my Index 1's in my 03/07 build date 335i, and they seem to be going strong. It just makes me cringe a little when forecasting future maintenance items and tallying up cart totals.

I got really lucky and purchased index 12 before the price spike!


Here is some information

https://blog.fcpeuro.com/difference-...nd-13538616079

Update:

As of 3/26/2018 BMW has made it impossible to order #937 injectors unless the order was part of a warranty claim under a recall. FCP Euro can no longer source or sell #937 injectors and will now be selling #079 injectors moving forward until further notice. However, the information listed below in regards to the #079 and #937 injectors is still relevant while both numbers are still listed in BMW's parts system. At the present moment, the #79 injector now has the material update that was once exclusive to the #937 injector.

Original article:

It's a well known fact that direct fuel injectors in N54, N63, and S63 applications are an important replacement item. In fact, BMW has even had several problems with these injectors where some vehicles in the United States are covered with a 10 year, 150,000 mile warranty on the injectors. It is also a well known fact that these fuel injectors are expensive to replace and in most cases you must replace all of your BMW injectors in one cylinder bank if the index number on the pre-installed injectors are below a certain number. However, as of October 2016 a new injector was released through BMW as part of a TSB specifically for the S63 V8 found in the E70 X5M as well as the E71 X6M. The new part number cannot be found in the ETK BMW catalog. The service bulletin specifically says to order p/n 13538648937 instead of 13538616079 which is the expensive injector sold by dealers and most online retailers. Both the #937 and #079 injector are index 12 and the part number on the injectors both read "13537585261" and then "-12" to notate the index number. With that said, what exactly is the difference in these injectors?

"Nothing" is the simple answer. Both injectors as referenced are index 12 and come packaged the exact same way. Initially the #937 injector had a stamping on the metal housing which signified a material update to the injector which is as follows which included an internal filter and optimized thermal compensating oil

The TSB is specific for the S63 V8 which is the highest stock output engine that uses this particular type of direct fuel injection system. Remember that the N54, N63, and S63 engine in ETK use the same fuel injector. With that said, the #937 injector can be used in all applications safely and in theory it should be a better long term solution compared to the #079 injector that is specified for N54 and N63 applications. The good news about this new #973 injector is it is half the price of the #079 injector. We have done some testing on our end and have verified that this new injector performs the same and has the same increments of calibration. For those interested in the TSB from BMW, the number associated with this injector is SI B13 08 15. How can you tell the difference between the standard design and and improved design. Per BMW, there is stamping on the injector noting this. However, the #079 injector now has the same material update identifier on them which indicates the initial changes the #937 injector received also have been applied to the latest stock of #079 injectors. The only difference between these injectors at the end of the day is the retail price.

Remember, when installing these injectors you must carry out a DME calibration by entering the calibration number off the injector during the coding process. Failure to do so will result in poor performance and misfires. FCP Euro also carries an array of BMW specialty tools to aid in installation of these injectors as well.

[srey]

Thanks! I was looking for that note. I couldn't remember if it was from FCP Euro or ECS.

[zomski101]

I bought 6 injectors from fcp for 1506.00 in June. Now they are 1256, seems like they are going down.

[Jklad]

I just looked a couple weeks ago, they are around 200 a piece which is what they've always been unfortunately. Check ecs or Bavauto.

[DS3IAM]

Originally Posted by srey

Thanks! I was looking for that note. I couldn't remember if it was from FCP Euro or ECS.

No problem .. looks like the going rate for index 12 settled down at $1200 or so. Still too high in my book!

[JDang]

You can grab a set of 6 index 12 injectors through Advance Auto Parts (Special Ordered) overnighted to your door for less than $800 with lifetime warranty.

They are verified to be part number ending in 079 with the BMW Label being covered by a sticker.

[Bimmer_Engineer]

Originally Posted by JDang

You can grab a set of 6 index 12 injectors through Advance Auto Parts (Special Ordered) overnighted to your door for less than $800 with lifetime warranty.

They are verified to be part number ending in 079 with the BMW Label being covered by a sticker.

Holy shit that's a good find...I wish I'd known about that in August...they're out of stock for shipping right now though...

Originally Posted by JDang

You can grab a set of 6 index 12 injectors through Advance Auto Parts (Special Ordered) overnighted to your door for less than $800 with lifetime warranty.

They are verified to be part number ending in 079 with the BMW Label being covered by a sticker.

Those have been OOS for quite some time IIRC.

[N54Society]

It sure would be nice if a third-party manufacturer decided to make these at the same price or less...

Obviously not gonna happen...you'd have better luck going with a standalone + PI and ditching DI altogether.

[srey]

Originally Posted by FCobra94

Obviously not gonna happen...you'd have better luck going with a standalone + PI and ditching DI altogether.

A standalone fuel management system; not a bad way to spend $10,000.

[vasillalov]

I don't understand what's the fuss all about...

1) You can mix and match injector indexes in the same bank no problem at all! Been doing it for the past 4+ years. I was the first person to figure out how to code your own injectors on this forum.

2) You can significantly extend the life of your injectors by using Marine Stabil fuel additive which prevents the separation of ethanol from the gas. I used to replace 2-3 injectors every year before I realized what was happening. I've been using Marine Stabil for the past 3 years and I've not replaced a single injector since then.

[bimmertt]

Originally Posted by vasillalov

I don't understand what's the fuss all about...

1) You can mix and match injector indexes in the same bank no problem at all! Been doing it for the past 4+ years. I was the first person to figure out how to code your own injectors on this forum.

2) You can significantly extend the life of your injectors by using Marine Stabil fuel additive which prevents the separation of ethanol from the gas. I used to replace 2-3 injectors every year before I realized what was happening. I've been using Marine Stabil for the past 3 years and I've not replaced a single injector since then.

Is this what you're putting in?

https://www.amazon.com/STA-BIL-22240...=Marine+Stabil

[TheMidnightNarwhal]

Originally Posted by vasillalov

I don't understand what's the fuss all about...

1) You can mix and match injector indexes in the same bank no problem at all! Been doing it for the past 4+ years. I was the first person to figure out how to code your own injectors on this forum.

2) You can significantly extend the life of your injectors by using Marine Stabil fuel additive which prevents the separation of ethanol from the gas. I used to replace 2-3 injectors every year before I realized what was happening. I've been using Marine Stabil for the past 3 years and I've not replaced a single injector since then.

How often do you put that in? Every fill up or just before storage?

[N54Society]

I wonder if it will reduce the octane value for E85 by running this to preserve your injectors?

[Basedtiger]

Originally Posted by vasillalov

I don't understand what's the fuss all about...

1) You can mix and match injector indexes in the same bank no problem at all! Been doing it for the past 4+ years. I was the first person to figure out how to code your own injectors on this forum.

2) You can significantly extend the life of your injectors by using Marine Stabil fuel additive which prevents the separation of ethanol from the gas. I used to replace 2-3 injectors every year before I realized what was happening. I've been using Marine Stabil for the past 3 years and I've not replaced a single injector since then.

Nice how often should I add that additive? Would the additive have the same effect on old and new injectors?

[vasillalov]

Originally Posted by bimmertt

Is this what you're putting in?

https://www.amazon.com/STA-BIL-22240...=Marine+Stabil

Yes! That's the one. 1oz per 10 gallons. I do 2 oz per fill up. Been doing this for the past 3 years.

[vasillalov]

Originally Posted by Basedtiger

Nice how often should I add that additive? Would the additive have the same effect on old and new injectors?

I don't understand your question. The additive is for the fuel, not for the injectors. You add 1 oz per 10 gallons of fuel. That's on the bottle. I run 2 oz per fuel tank if I am fueling up when I am on E.

[hughrd1_e90]

Originally Posted by FCobra94

Those have been OOS for quite some time IIRC.

I picked up a set from a guy yesterday for a reasonable price. He sells them. Like 900 shipped. Index 12s

[Jeef]

Originally Posted by vasillalov

I don't understand what's the fuss all about...

1) You can mix and match injector indexes in the same bank no problem at all! Been doing it for the past 4+ years. I was the first person to figure out how to code your own injectors on this forum.

2) You can significantly extend the life of your injectors by using Marine Stabil fuel additive which prevents the separation of ethanol from the gas. I used to replace 2-3 injectors every year before I realized what was happening. I've been using Marine Stabil for the past 3 years and I've not replaced a single injector since then.

if you went through the tank quick enough it shouldn't have that issue so fast, unless you introduced a bunch of water to it..?