Blown motors, Rod Bearing failure S65 Registry.

[asbjorjo]

Originally Posted by bdaddylo

I held a DE at the end of August and we lost 2 out of 12 S65s due to rod bearing failures. One was a 2008 and the other was a 2011 and both had less than 60,000 miles. You have to be crazy to believe this is an acceptable failure rate.

The 2008 was at about 64k.

[Obioban]

Originally Posted by Properstyle

You know I keep seeing these threads yet for some reason the failure seem to always have the common trait of people doing those stupid BMW oil change intervals. I'm not sure what part of someones minds says it makes sense to drive 14k the same oil in a high reving high heat tight tolerance motor. The rate of rod bearing failures is much smaller than people make it. When it was a Issue on the e46 it got fixed and recall was issued plane and simple, there were more failure in the first year then all of the years of e90 production. The numbers even in this thread aren't even over 200 yet you think bmw is going to do a recall on the 60k units sold? lets use some common sense. As of late the car thats seem to be spining bearings are 2011s with 38-50k And all of the owners keep saying the same thing. I just followed bmw oil change intervals. I don't doubt there are a few that the clearances were improperly set but damn people stop over analyzing the bs. You all make owning the car more of a scare then the thrill of driving it. If you are about to super charge the car it maybe a good idea to go a head and change them as they car will be put under forced in duction which is not great for tight tolerance motors but stock cars those with bolt ons? enjoy the damn car. I bought my car with 49k january, I now have 70k. when I first got the car I spent most of my time in the 5k above range.

You are... incorrect in your observation.

MANY cars on here, probably the majority, with failure were doing 5000 mile oil change intervals.

Doesn't even seem to be less likey with more oil changes.

(said as someone doing ~5000 mile OCI's on his cars)

[Doc Oc]

Originally Posted by byroncheung

Doc Oc thanks for your reply. Yes I'm going to do one UOA anyway just to see what is it up to. I pray I have the lead ones.

But even if it's the aluminum/tin, can't I monitor it from the aluminum and tin content in the oil? I see they list those metal in the report?

I'd think, although those metals don't seem to track the same as the lead. I'm no expert but I know the 2011+ bearings are much harder than the lead babbit bearings which seems to make it more difficult to track issues with a uoa. Keep in mind you have a 98% of having no issues, so don't let it hamper your enjoyment of the car.

[Properstyle]

Originally Posted by Obioban

You are... incorrect in your observation.

MANY cars on here, probably the majority, with failure were doing 5000 mile oil change intervals.

Doesn't even seem to be less likey with more oil changes.

(said as someone doing ~5000 mile OCI's on his cars)

you may want to go back and check the 2011 cars that have spun with in the last year. even cars in this registry are by no way shape in form majority 5k changes.

[Killerfish2012]

Originally Posted by Properstyle

you may want to go back and check the 2011 cars that have spun with in the last year. even cars in this registry are by no way shape in form majority 5k changes.

Please spend more time doing research on the forums. This topic has been discussed to death. The S65 if properly assembled can last well over 200K miles. If the assembly was spotty, failure occurs much earlier in the engine's life. Miscellaneous Engine assembly issues are the biggest culprit, and NOT oil change intervals. Oil change intervals are very important, especially for engine longevity, YES, but it ranks below proper engine assembly, as a cause of the engine failures.

[byroncheung]

Originally Posted by Doc Oc

I'd think, although those metals don't seem to track the same as the lead. I'm no expert but I know the 2011+ bearings are much harder than the lead babbit bearings which seems to make it more difficult to track issues with a uoa. Keep in mind you have a 98% of having no issues, so don't let it hamper your enjoyment of the car.

yea i understand, but then the cost of a failure is so high, if UOA can help catch it before it happen (even not 100%), i'd do it for the peace of mind.

so how many of the 2011+ owners have been able to catch a near failure from UOA and swapped out the bearing? and what was the sort of readings on the UOA?

[Doc Oc]

Originally Posted by byroncheung

yea i understand, but then the cost of a failure is so high, if UOA can help catch it before it happen (even not 100%), i'd do it for the peace of mind.

so how many of the 2011+ owners have been able to catch a near failure from UOA and swapped out the bearing? and what was the sort of readings on the UOA?

Definitely. $25 is nothing for peace of mind. If you are worried at all pull a little oil now (assumimg you have a few k miles on it) and send it out...no reason to wait til your next oc.

[byroncheung]

Originally Posted by Doc Oc

Definitely. $25 is nothing for peace of mind. If you are worried at all pull a little oil now (assumimg you have a few k miles on it) and send it out...no reason to wait til your next oc.

Thanks for your suggestion. I actually just had an OC and have sent out the sample already. I'm just curious what other been watching for for 2011+ cars in their report and has there been lot of success in catching failure in advance for the 2011+ cars.

[Strick]

Just replaced my bearings over the weekend and wanted to post a few pics as I know all are curious. Disregard gouges in bearings, I tossed them into a box after removal. -- Crank was 100% OK, zero issues. ps- I chose VAC Bearings & ARP hardware.

Car is a 2009 E92 DCT with 130k miles. Car has never seen the track and majority of milage is highway (60% +). Hardest driving the car will see is sprinted driving on back country roads etc. Oil changed varied between 6-10k miles and have always used BMW Castrol 10W60.

[4corners]

[QUOTE=Strick;18840697]Just replaced my bearings over the weekend and wanted to post a few pics as I know all are curious. Disregard gouges in bearings, I tossed them into a box after removal. -- Crank was 100% OK, zero issues. ps- I chose VAC Bearings & ARP hardware.

Car is a 2009 E92 DCT with 130k miles. Car has never seen the track and majority of milage is highway (60% +). Hardest driving the car will see is sprinted driving on back country roads etc. Oil changed varied between 6-10k miles and have always used BMW Castrol 10W60.

I'd say you have some pretty good looking bearings for 130k. Maybe about as good as it gets.

I have 137000 plus on mine now. I hope they look something like this.

[Doc Oc]

Nice! It's ridiculous how much better yours look at 130k than mine did at 60k. That definitely has to inspire some confidence in your engine!

[vsix]

Originally Posted by Doc Oc

Definitely. $25 is nothing for peace of mind. If you are worried at all pull a little oil now (assumimg you have a few k miles on it) and send it out...no reason to wait til your next oc.

This and keep in eye your oil consumption, wich could also be a good indicator of premature bearing fail.

[Obioban]

Originally Posted by vsix

This and keep in eye your oil consumption, wich could also be a good indicator of premature bearing fail.

How do you figure?

[apecush]

Originally Posted by vsix

This and keep in eye your oil consumption, wich could also be a good indicator of premature bearing fail.

Swing and a miss.

[ah gon]

Originally Posted by Strick

Just replaced my bearings over the weekend and wanted to post a few pics as I know all are curious. Disregard gouges in bearings, I tossed them into a box after removal. -- Crank was 100% OK, zero issues. ps- I chose VAC Bearings & ARP hardware.

Car is a 2009 E92 DCT with 130k miles. Car has never seen the track and majority of milage is highway (60% +). Hardest driving the car will see is sprinted driving on back country roads etc. Oil changed varied between 6-10k miles and have always used BMW Castrol 10W60.

How much copper reading from your black stone report?from picture I saw only one bearing I see have copper showed.

[Strick]

Originally Posted by ah gon

How much copper reading from your black stone report?from picture I saw only one bearing I see have copper showed.

Didn't bother getting one, I knew the bearings were bad when I could hear them. 3 bearings had copper showing slightly near the edges. Zero crank damage.

[ah gon]

Originally Posted by Strick

Didn't bother getting one, I knew the bearings were bad when I could hear them. 3 bearings had copper showing slightly near the edges. Zero crank damage.

[mkPOTO]

question for the guys who had bearing issues, does the noise go away when the car is warm or is it always there?

[Killerfish2012]

Originally Posted by mkPOTO

question for the guys who had bearing issues, does the noise go away when the car is warm or is it always there?

Start up and then goes away= main bearings

Start up and continues while driving= rod bearings.

Get a tech to listen to the noise to trouble shoot further.

[mkPOTO]

Originally Posted by Killerfish2012

Start up and then goes away= main bearings

Start up and continues while driving= rod bearings.

Get a tech to listen to the noise to trouble shoot further.

thanks. Going to have it done over the winter, anyone have this done?

[aussiem3]

Originally Posted by mkPOTO

thanks. Going to have it done over the winter, anyone have this done?

Why do you want it done if there is no issue ... precautionary?

[surlynkid]

Blackstone went up to $28. Just sent one in.