Official S65 Injector Failure Thread

[smokinjoe64]

Originally Posted by Redd

NRW-Design has got an inline fuel filter coming soon.

Redd Concur on NRW inline fuel filter. Planned near-term PM/upgrade along with new Bosch injectors.

Actually, an early NRW products adapter; their valve covers with silicone grommets.
So-far ~3K of spirited driving - - no issues, leaks, all clean and pristine.

[MyNameIsNotSure]

Originally Posted by Redd

NRW-Design has got an inline fuel filter coming soon.

So with something like this could I just install it along with new injectors and be all set? Or would I have to also change the fuel pump and fuel filter in the gas tank?..

I just got an e92 with under 50k miles but seeing the other user above blow his engine due to this issue at 60k miles is making me want to err on the side of caution.

[Redd]

NRW fuel filter is a standalone mod. U don't need to change your fuel pump or fuel filter in the tank.

[BimmerMan33]

Bought & test installed NRW in line fuel filter, it’s high quality but the fitment is not OEM level given the tight space, filter bracket runs against the plastic ignition coil cover & the flexible fuel line to the rail needed to be relocated & twisted beyond my comfort level, also said rubber fuel line now sits closer/in the way of significant radiant heat from the driver side exhaust header.
I know some people have installed these & are happy, I personally wasn’t comfortable, so removed it.
Another thing is, the NRW or similar fuel filter should not be considered an alternative to replacing fuel injectors at regular intervals as they may already be clogging up as most cars have 50,000 miles or greater..
I wish the NRW filter were smaller in size, it would fit so much better..

[Assimilator1]

Added ProjektAutoScott and AKJCCM3 injector>engine failures to the blown engines list.

Originally Posted by fuddman

On my 2013 M3, on different starts, I get different numbers of warnings on the dashboard - sometimes several warning lights, sometimes two, sometimes 1 and sometimes none. The one that always seems to be there is the SES light. The car then posts the message "Increased emissions!" With an exclamation mark, no less - like you bad, bad boy, you're screwing up mother earth.

In any case, this got me to thinking. What does "increased emissions" mean? To me it means there exists some kind of fixed emissions baseline in the car somewhere. In addition, something is constantly calculating the emissions generated by my car and going out the exhaust.

Then, the two are constantly compared somewhere in the car. That is, my generated emissions are compared to the baseline emission and if, for example, a ratio exceeds a certain amount, the SES light goes on.

Could it be that if that emissions ratio exceeds another predetermined value the car will be thrown into limp mode?

What I'm thinking is that perhaps there is nothing really wrong with the parts in your car. And the car could go on indefinitely. Except that someone has determined you are exceeding what they believe is the acceptable amount of emissions going out your back end. Therefore you and your car are assigned the limp mode.

In other words, you're not necessarily going into the limp mode because of a parts malfunction. But, for sure, you're going into the limp mode because you are exceeding an emissions standard programmed in the car.

I'm suggesting that when you begin to diagnose a limp mode, you start by assuming the computer (ECU?) in your car gave you the limp mode because of some emissions related problem it senses. Then look at the codes, especially look for the SES warning light.

But clearly something is going wrong or the emissions wouldn't be beyond specified limits, you need to get the codes read and sort it out before you have serious problems.

[jvictormp]

Year: 2019

Miles: 40,000 miles

Injector Failure symptoms: raw fuel smell, limp mode reduced power, rough idle.

Duration driven with symptoms: less than one kilometer, but I made another mistake that prevented me from saving that engine.

Secondary failure: hydrolock because of several attempts to start the engine and investigate. one of those startups end up in starter locking up, and con rod fatigued, then engine blew up after injectors were replaced. cylinder walls were in pristine condition.

Injector failure cause or theory: I bought the car far from home, and came driving it home, about 600 miles. previous owner always used bad (common) quality fuel. I got home, let the tank full of top tier gas, and went away for work for 2 weeks. after come back, at first ride it happened. do the math. common gas, high deposits. top tier gas, high cleaning.

That was the moment of the hydrolock:

[e92dud]

Originally Posted by jvictormp

Year: 2019

Miles: 40,000 miles

Injector Failure symptoms: raw fuel smell, limp mode reduced power, rough idle.

Duration driven with symptoms: less than one kilometer, but I made another mistake that prevented me from saving that engine.

Secondary failure: hydrolock because of several attempts to start the engine and investigate. one of those startups end up in starter locking up, and con rod fatigued, then engine blew up after injectors were replaced. cylinder walls were in pristine condition.

Injector failure cause or theory: I bought the car far from home, and came driving it home, about 600 miles. previous owner always used bad (common) quality fuel. I got home, let the tank full of top tier gas, and went away for work for 2 weeks. after come back, at first ride it happened. do the math. common gas, high deposits. top tier gas, high cleaning.

That was the moment of the hydrolock:
https://youtu.be/x2RtfpgSk9o?si=bwlnNjcDQXFGPoaz

Was fuel stabilizer ever used in the car? My theory is that people are letting the fuel sit in these cars way too long without adding stabilizer, especially the low mile examples, I add a few oz of stabilizer to any car I’m going to be letting sit over a week. My e36 would idle very rough after sitting a few weeks until I started running stabilizer and it fixed the issue. I’ve always ran it in my e92 that gets drove twice a month.