Time to Replace Turbos - 2009 e93

matreyia

Major
Apr 19, 2017
1,713
Are you doing short drives? I had that issue in my E46 when doing short drives. It would get a build up of that white milky crud. Let the engine fully warm up and that would stop happening.
Nah, it isn't the short drive thing. This does happen on short drives and in cold weather but not this time. This has happened before and there was no head gasket leak at all, and I drive 25 miles to work and back. Most likely it is injector leaking, and I definitely know the turbo seals blow because there was a popping sensation when it happened and minutes later white smoke...kept driving until it totally shut down and gave me the injector cut off fault. And this is less than a week after it happened that this cottage cheese material appeared... I even drained and cleaned both catch cans a week ago on the same gas tank...so this is definitely turbo seal related or injector.

I have read of a few cases on injector failure causing cottage cheese and turbo issues... seems like this is the same situation.
 

NoGuru

Lieutenant
Jan 9, 2018
732
Just North of Detroit
Nah, it isn't the short drive thing. This does happen on short drives and in cold weather but not this time. This has happened before and there was no head gasket leak at all, and I drive 25 miles to work and back. Most likely it is injector leaking, and I definitely know the turbo seals blow because there was a popping sensation when it happened and minutes later white smoke...kept driving until it totally shut down and gave me the injector cut off fault. And this is less than a week after it happened that this cottage cheese material appeared... I even drained and cleaned both catch cans a week ago on the same gas tank...so this is definitely turbo seal related or injector.

I have read of a few cases on injector failure causing cottage cheese and turbo issues... seems like this is the same situation.
Hook up Winkpf and monitor those injectors if you can.
 

matreyia

Major
Apr 19, 2017
1,713
Oh dam! Well I don't have much more to offer. Maybe one of the more proficient trouble shooters will assist you.
Yeah...and one more thing that makes me think injectors is that a couple of weeks before this the car mpg was absurd...like lamborghini mpg...13mpg driving like normal, grandma style. All point to messed up injectors.
 

matreyia

Major
Apr 19, 2017
1,713
What injectors do you have in there now (index, miles ... knowing you they are BMW OE)

Filippo
index 12 from FCP euro. Probably two years old now. However, they probably went south due to the horrifying turbo seal conditions. Heard a pop, then smoke in tail pipe, drove for a week and they went out and car told me to go to hell.

Caveat...I am a very special person when it comes to my car - as you have seen...I try to diagnose with best case scenario and it sometimes ends up being worst case... as we all have seen in the M Factory Differential episode. So I appears I am cursed when it comes to my car. Destined to get raped financially by each episode. But again... as with many of you, financial logic is not in my dna when it comes to cars...rather stubbornness and defiance rules.
 
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Rob09msport

Major
Oct 28, 2017
1,924
Monroe CT
Im asking not disagreeing but how would turbo seal mess up injector. And I would send to Blackstone plus cant u pull injectors and test spray pattern and for leaks out of car? I would be very concerned with my bearings if injector is that bad, especially you have new block. I really hoping it just was the turbo burning so much oil up it made afr go rich as fuck and choked engine causing super knock code. Do you have log by any chance?
 
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matreyia

Major
Apr 19, 2017
1,713
Im asking not disagreeing but how would turbo seal mess up injector. And I would send to Blackstone plus cant u pull injectors and test spray pattern and for leaks out of car? I would be very concerned with my bearings if injector is that bad, especially you have new block. I really hoping it just was the turbo burning so much oil up it made afr go rich as fuck and choked engine causing super knock code. Do you have log by any chance?
I couldn't tell you how. I .not not saying one thing caused the other. I am saying both my seals and injectors may be bad.
1. I know my seals went because I saw smoke after WOT before proper temps were reached. And there was a slight popping sensation.
2. I only suspect injectors are bad because gas mpg went to 13mpg two weeks prior and there was a cylinder injector cuttoff fault when car gave up. No fuel pump codes at all. So I figure may be injectors leaky...just a suspicion. Today will pull plugs to smell fuel.

May be injectors are fine and cutoff fault was due to super low octane as you suggested because catch can showed cotttage cheese and oil cap also. So moisture definitely is getting inside enough to form cheese. No sweet smell in tailpipe or engine. Coolant levels same and oil appears clean except for gas smell and very waterlike viscosity. Won't know till after car is dissassembled. Will document.
 

matreyia

Major
Apr 19, 2017
1,713
The metal was literally invisible a day ago. This shows that it was water moisture and not coolant. Coolant does
20191116_100202.jpg
not evaporate that quickly and stays around for weeks if spilled on garage.
 

matreyia

Major
Apr 19, 2017
1,713
PROGRESS REPORT SO FAR.

1. Internals are pristine condition.
2. Injectors not leaking.
3. Low side catch can was clogged with moisture oil combo but evaporated in a day to almost nothing.
4. High side catch can has zero moisture and zero milky cream cheese.
5. Spark plugs pristine
6. Intake manifold clean.
7. Intake valves pristine.
8. Throttle body pristine
9. Internal bore scope video inspection shows pristine cylinder and pistons on all six.

Found cause of injector shutoff- throttle body feed line was glogged with creamy cheese stuff so car went to safety mode and shut off injector. See attached pics.
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doublespaces

Administrator
Oct 18, 2016
8,869
AZ
Glad to see you've worked that out. @[email protected] sells a double o-ring'd 10 AN fitting that goes there. Allowed me to run AN lines to the catch can which have more aesthetic options and then put the flapper on the other side of the catch can out of the way.

It has never moved around on me and doesn't sweat a drop. Although, I suspect the climate plays a role in that.


The other option is the one with the clip sold by a couple people. Seem to hear people say it leaks oil though.
 

matreyia

Major
Apr 19, 2017
1,713
Glad to see you've worked that out. @[email protected] sells a double o-ring'd 10 AN fitting that goes there. Allowed me to run AN lines to the catch can which have more aesthetic options and then put the flapper on the other side of the catch can out of the way.

It has never moved around on me and doesn't sweat a drop. Although, I suspect the climate plays a role in that.


The other option is the one with the clip sold by a couple people. Seem to hear people say it leaks oil though.
Just ordered your link. Looks like will ship after New Year. Wtf...
 
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