who is still on original rod bearings?

[Edward]

Originally Posted by Accelerometer

Are there any member reported failures on 2011+ cars?

This is what I want to know. Mostly I see dudes with 2008s with a ton of miles on these their cars. I guess not enough time has passed to see. But then again there have got to be some high mileage 11-13 guys on here too. Speak up lurkers.

[islandguy19]

08 e92 with 69k. Performing my last oil change before 70 with Blackstone report. Will update.

[SenorFunkyPants]

Originally Posted by Edward

This is what I want to know. Mostly I see dudes with 2008s with a ton of miles on these their cars. I guess not enough time has passed to see. But then again there have got to be some high mileage 11-13 guys on here too. Speak up lurkers.

This graph is of all failures (on M3post) except supercharged cars.
The X axis is stated year of manufacturer, oldest at zero (ordered by date of fail).
There was the bearing spec change to EU mandated lead free bearing at around mid 2010 most likely for the 2011 model change in August 2010.
Assuming all cars with a stated build date of 2011 have the new bearings then the change occurs on the graph with car 26.

Newer cars fail at around the same rate as older cars but at a lower mileage.

[Edward]

Originally Posted by SenorFunkyPants

This graph is of all failures (on M3post) except supercharged cars.
The X axis is stated year of manufacturer, oldest at zero (ordered by date of fail).
There was the bearing spec change to EU mandated lead free bearing at around mid 2010 most likely for the 2011 model change in August 2010.
Assuming all cars with a stated build date of 2011 have the new bearings then the change occurs on the graph with car 26.

Newer cars fail at around the same rate as older cars but at a lower mileage.

I've seen this graph before and it doesn't tell you anything about the model year. It simply plots 54 bearing failures numbered by miles and car number. Using the mid point of 25 ish to mark a 2011 model year car is the crudest thing I've ever seen in a scatterplot which isn't really a good type of graph to illustrate the stats.

To someone who didn't create this graph, it's impossible to tell if car 46 that failed at 18k miles was a 2008 or a 2012.

[SenorFunkyPants]

"The X axis is stated year of manufacturer, oldest at zero (ordered by date of fail).
Assuming all cars with a stated build date of 2011 have the new bearings then the change occurs on the graph with car 26."
Perhaps this wasn't clear enough.
2007- 2010 are cars 0 to 25
2011- 2013 are cars 26 onwards.
The point of the graph is to show the significant change in mileage at failure between pre and post bearing spec change cars.
Cars to the left of 26 are old spec bearings, cars to the right are new spec bearings.
Car 45 therefore is a 2011 or newer car.

[Edward]

Originally Posted by SenorFunkyPants

"The X axis is stated year of manufacturer, oldest at zero (ordered by date of fail).
Assuming all cars with a stated build date of 2011 have the new bearings then the change occurs on the graph with car 26."
Perhaps this wasn't clear enough.
2007- 2010 are cars 0 to 25
2011- 2013 are cars 26 onwards.
The point of the graph is to show the significant change in mileage at failure between pre and post bearing spec change cars.
Cars to the left of 26 are old spec bearings, cars to the right are new spec bearings.
Car 45 therefore is a 2011 or newer car.

I understand it now. All this really tells me is that more 11-13 cars fail faster than 07-10 cars. Are there really only 54 members stating rod bearing failure on this entire forum? Not sure how old that graph is but if this guy who compiled this only was able to find 54 members, then we have all collectively spent 20000 manhours debating this crap and blackstone has earned a lot of money from worry warts.

[pbonsalb]

Someone recently reported a failure rate of 2% to 4% although we do not know the reliability of the reported number. Assuming it is true, you have a 96% to 98% chance your car will be fine. Those are very good betting odds. It would suck to be among the 2% to 4%. I DIYed my bearings as preventative maintenance. Never bothered with a Blackstone report since I did not feel one would be conclusive. Cost me under $600 and 12 hours of my time. I won't be worrying for another 5 or 6 years about them.

[gsxrliterbikz]

Well, I'll have some pics of mine pretty soon.
Had a bad blackstone come back, so I'll have that report and pictures to show what it looks like once I'm done.

[SteveInfante]

I did some searching and I saw a couple people in here who did their own bearing replacement. Seems involved but not too hard for someone with access to a lift and the right tools. Maybe a spare hand to help out.

[VMcV3y]

Originally Posted by Edward

This is what I want to know. Mostly I see dudes with 2008s with a ton of miles on these their cars. I guess not enough time has passed to see. But then again there have got to be some high mileage 11-13 guys on here too. Speak up lurkers.

Okay: January 2012 E93: 66,700 miles. Following BMW-recommended oil change intervals; several track days; no engine issues except two fuel sensor blow-outs and a fuel-pressure sensor failure. Haven't done any oil analysis. Have BMW Maintenance until 100k miles; no warranty. So...we'll see. I'm not fretting about the rod bearings. When something breaks, I'll weigh the repair costs with car-replacement costs with the mileage of the M3 as a whole.

- V

.

[Upgrade+]

What's the cost of replacing the bearings from the dealer or shop?

[Genericuser1]

Bearings usually go around $3k give or take from what I hear, the problem is if they go then you are looking at $20k or more for a rebuilt engine.

[vincE92M3]

Originally Posted by Edward

This is what I want to know. Mostly I see dudes with 2008s with a ton of miles on these their cars. I guess not enough time has passed to see. But then again there have got to be some high mileage 11-13 guys on here too. Speak up lurkers.

This is what I want to know. My 2011 is at 38k miles and I haven't had a single problem.

[X5-User]

Originally Posted by VMcV3y

Okay: January 2012 E93: 66,700 miles. Following BMW-recommended oil change intervals; several track days; no engine issues except two fuel sensor blow-outs and a fuel-pressure sensor failure. Haven't done any oil analysis. Have BMW Maintenance until 100k miles; no warranty. So...we'll see. I'm not fretting about the rod bearings. When something breaks, I'll weigh the repair costs with car-replacement costs with the mileage of the M3 as a whole.

- V

.

It seems that fuel sensor are becoming a common issue. What is the reason for them to go south and blow out?

[pbonsalb]

Originally Posted by Genericuser1

Bearings usually go around $3k give or take from what I hear, the problem is if they go then you are looking at $20k or more for a rebuilt engine.

EAS in CA, an expensive part of the country, charges $2400 for coated bearings, ARP bolts, and labor. Figure the parts are maybe $800 of that and the rest is labor.

[nthretourNAFTW]

Originally Posted by VMcV3y

Okay: January 2012 E93: 66,700 miles. Following BMW-recommended oil change intervals; several track days; no engine issues except two fuel sensor blow-outs and a fuel-pressure sensor failure. Haven't done any oil analysis. Have BMW Maintenance until 100k miles; no warranty. So...we'll see. I'm not fretting about the rod bearings. When something breaks, I'll weigh the repair costs with car-replacement costs with the mileage of the M3 as a whole.

- V

.

What are the symptoms of fuel sensor blow-out and fuel pressure sensor failure ?

[redpriest]

Originally Posted by Edward

This is what I want to know. Mostly I see dudes with 2008s with a ton of miles on these their cars. I guess not enough time has passed to see. But then again there have got to be some high mileage 11-13 guys on here too. Speak up lurkers.

86700 miles on a 2011 here. Extended warranty expires at 92k miles, I might consider replacing the rod bearings then.

[VMcV3y]

Originally Posted by Bimmer-M3

It seems that fuel sensor are becoming a common issue. What is the reason for them to go south and blow out?

Originally Posted by nthretourNAFTW

What are the symptoms of fuel sensor blow-out and fuel pressure sensor failure ?

The root cause of both Fuel Sensor problems was pretty easy to figure out... both occurred within 48 hours of me using high-octane RACE gasoline, at MotorSports Ranch Angleton TX. The error was one of the "Increased Emissions -- have car Serviced now or it will explode like Chernobyl" warnings. I didn't detect any loss of power or such.

Now, the fuel pressure sensor...that was very noticeable. Driving regularly (which means D7) and hit the throttle a bit because...hell, M3!... and it just suddenly went into "limp mode" with something like "Engine Failure" lights, kalaxxons, and bells of death. And 7 mph maximum speed....down hill. I drove it to the BMW Austin dealership and they first said it was a dirty fuel valve; but two days later the same thing happened and they identified it as a fuel pressure sensor, which they replaced; no problems since then. Well, not exactly. Once I was at idle, at a traffic light, and I noticed the engine had died. So that was weird.

So I don't put in a full tank of 100+ octane anymore!

- V

.

[dogbone]

Originally Posted by VMcV3y

The root cause of both Fuel Sensor problems was pretty easy to figure out... both occurred within 48 hours of me using high-octane RACE gasoline, at MotorSports Ranch Angleton TX. The error was one of the "Increased Emissions -- have car Serviced now or it will explode like Chernobyl" warnings. I didn't detect any loss of power or such.

Now, the fuel pressure sensor...that was very noticeable. Driving regularly (which means D7) and hit the throttle a bit because...hell, M3!... and it just suddenly went into "limp mode" with something like "Engine Failure" lights, kalaxxons, and bells of death. And 7 mph maximum speed....down hill. I drove it to the BMW Austin dealership and they first said it was a dirty fuel valve; but two days later the same thing happened and they identified it as a fuel pressure sensor, which they replaced; no problems since then. Well, not exactly. Once I was at idle, at a traffic light, and I noticed the engine had died. So that was weird.

So I don't put in a full tank of 100+ octane anymore!

- V

.

Strange. I have run strictly 100 octane for over a year in my E90 M3 and haven't seen any of these kinds of issues. The car is supercharged and sees the track quite often and doesn't see much street duty anymore, so I just leave 100 octane in it. As far as I know, there are no special modifications to any fuel sensors. I don't even have a 100 octane tune.

Did you maybe run leaded racing fuel?

[pbonsalb]

Yes, he ran leaded fuel. Unleaded fuel doe not hurt 02.

[FashionablyFast]

Originally Posted by phrozen06

175k miles. Still on my original rod bearings

Originally Posted by 4corners

08 E92 DCT 130k

Although I think it's luck of the draw...I do have some questions for you.

- How do you warm the car up? Start up & idle? Start up and drive away as normal?
- What are your driving habits? Do you baby the car or beat the snot out of it when it's warm?
- How often are you redlining it?
- Oil change intervals?

[phrozen06]

Originally Posted by OhSoCal

Although I think it's luck of the draw...I do have some questions for you.

- How do you warm the car up? Start up & idle? Start up and drive away as normal?
- What are your driving habits? Do you baby the car or beat the snot out of it when it's warm?
- How often are you redlining it?
- Oil change intervals?

I warm my car up until the cold start has cycled thru.

Im a combination driver. Sometimes I get on it hard and sometimes i'm docile. Depends on the situation or if i'm pumping my underground house music.

I get into the redline more often than not.

Every 7500 miles i change my oil. I use Liquimoly.