[BMW GENIUS]

In case you do need a new engine I found this for you! Only 100 miles on the engine!

http://www.ebay.com/itm/2015-BMW-M23...tV8FMS&vxp=mtr

[Cyberdemon]

Originally Posted by BMW GENIUS

In case you do need a new engine I found this for you! Only 100 miles on the engine!

http://www.ebay.com/itm/2015-BMW-M23...tV8FMS&vxp=mtr

I wonder, couldn't you grab a N55 from any 335? Were there any changes since the initial year besides the PPK tune?

[pz619]

Originally Posted by Cyberdemon

I wonder, couldn't you grab a N55 from any 335? Were there any changes since the initial year besides the PPK tune?

I want to say the M235i has forged rods or crankshaft. There was something that was different than the standard N55.

[Cpdbeemer]

Originally Posted by Pparana

Nothing like the sound of 40-50k vaporizing. Seriously there is this one guy who came out and blew the motor on a 911 rsr, 3 months later after having a new engine put in, full track support team and the engine builder at the track, he blew it up again at the exact same spot. Some people should consider automatics.

That is going to be one of two things: oil surge, or if it is the same driver it could also be engine braking (changing down too soon or grabbing a wrong gear).

I would have thought Porsche would have had oil surge sorted.

[Pparana]

Originally Posted by Cpdbeemer

That is going to be one of two things: oil surge, or if it is the same driver it could also be engine braking (changing down too soon or grabbing a wrong gear).

I would have thought Porsche would have had oil surge sorted.

Yup engine braking, same turn into 1 at roebling. Nothing like hearing a air oiled engine rev to prob 9k.

Best was the engine builder in the trailer came out screaming more expletives than a trucker who had been ripped off by a hooker. Apperantly vintage 911 rsr race car parts are pretty hard to come by.

No Porsche has nothing figured out, 3 of my friends have the 991 gt3, two are on there 3rd motor under warranty.

As for the op just ask them for a screen shot of the max rpm. Should give the max rpm and mileage it occurred.


Maximum RPM Achieved is under service functions -> engine -> data -> RPM Limit. That will tell you everything in ISTA.
________

[Pparana]

Originally Posted by BMW GENIUS

In case you do need a new engine I found this for you! Only 100 miles on the engine!

http://www.ebay.com/itm/2015-BMW-M23...tV8FMS&vxp=mtr

That's actually a very good price, odds of finding a 100 mile motor is pretty slim. I would grab that for sure if i was the op.

[doublevanosrc]

Wish the OP would post the details.

[Lucky13]

Originally Posted by shark715

I can tell you that when BMW first came out with the Mini Countryman in 2010 lots of owners of the AWD model needed clutch replacements within a short period of time. Rather than acknowledge the design problem, many owners were told that the repairs were not covered under the warranty as it was "user error", and many of those owners were incensed by their response given that they had been driving manual shift cars for decades with no problems. Two years later BMW quietly replaced the clutch with a new design.

Had that exact thing happen to our 2009 Mini Clubman, clutch went out at 22,000 miles but the dealer finally acknowledged they were getting a lot of burned clutches and they replaced it. I've owned 10 manual transmission BMW's and never had a problem but the Mini had a weak design.

[BentZero]

I like how the OP asked a controversial question and then just ghosted. Wtf. :/

[bimmerfile]

Originally Posted by BentZero

I like how the OP asked a controversial question and then just ghosted. Wtf. :/

OP only asked one question in his original post- which was "Does anyone have an attorney who handles these cases in the NYC/NJ area?"..
Maybe he found one - and was told he had the right to remain silent..

[shark715]

Originally Posted by bimmerfile

OP only asked one question in his original post- which was "Does anyone have an attorney who handles these cases in the NYC/NJ area?"..
Maybe he found one - and was told he had the right to remain silent..

real good point! Or his attorney advised him not to post here anymore, at last for now. BMW does monitor these forums.

[MrBucket]

Originally Posted by shark715

real good point! Or his attorney advised him not to post here anymore, at last for now. BMW does monitor these forums.

I have a feeling from his silence that he did something stupid and blew the engine up and wants us to tell him some way to trick the dealer.

[ORIGIN M.]

Originally Posted by doccyber

Pardon my ignorance, but what actually happens to an over revved engine?

By engaging the wrong gear.

Good luck OP !

[overcoil]

Originally Posted by red-sauerkraut

By engaging the wrong gear.

Good luck OP !

I'm also curious what happens mechanically when an engine lets go from too high rpm.
Someone said piston : valve contact, but it that true. Valve float won't cause piston : valve damage.
I've read valve spring breakage is a possibility from too high rpm.
Pulling the bolts from the crank end if the piston rods.
Then bearing destruction from not being able to handle oil at too high rpm.

I guess anything that rotates or moves that wasn't designed to activate at the extreme speed can break, but the failures that destroy an engine from over revving an engine, is it usually lubrication failure or bolt failure ?

[bimmerfile]

Originally Posted by doccyber

Pardon my ignorance, but what actually happens to an over revved engine?

Google "Youtube money shift" and you see and hear lots of examples.

[Cyberdemon]

Originally Posted by ScottSinger

I'm also curious what happens mechanically when an engine lets go from too high rpm.
Someone said piston : valve contact, but it that true. Valve float won't cause piston : valve damage.
I've read valve spring breakage is a possibility from too high rpm.
Pulling the bolts from the crank end if the piston rods.
Then bearing destruction from not being able to handle oil at too high rpm.

I guess anything that rotates or moves that wasn't designed to activate at the extreme speed can break, but the failures that destroy an engine from over revving an engine, is it usually lubrication failure or bolt failure ?

Valves hitting piston:


There are a lot of things that can go, it's more a mechanical failure issue than anything else.

The main problem is:

-You will not know what is damaged until you do a full engine teardown (which is expensive).

-Even if things "Look" ok, there is no way of telling if they've been mechanically stressed, hairline fractured or damaged in a way thats invisible, so you really need to replace the motor. Even if you could replace the pistons and head there is no way to guarantee the motor won't go a few hundred miles later.

[BentZero]

I over-revved a car once........I was 16. :/

[m235hou]

Other than a horribly gone wrong down-shift, can you even over-rev cars these days? Thought the car's cpu would limit it?

[Zooks527]

Originally Posted by m235hou

Other than a horribly gone wrong down-shift, can you even over-rev cars these days? Thought the car's cpu would limit it?

It will. Lots of people describe bumping up against the rev limiter.

With everything running through the computer these days, missing a downshift on a manual car is about the only way to do it. I don't believe there's any way to do it if you have an automatic.

[Squddie]

Originally Posted by Cyberdemon

Valves hitting piston:

Please tell me you own this and will sell it to me?

Awesome.

(needed for a visual heavy metal related project)

[pjohns21]

You cannot slanderously use someone's driving habits against them for a warranty repair. There is no proof that the car itself didn't over-rev given the amount of BS and worthless engineering the Germans throw into these vehicles, which is ultimately the reason for their failures. Hell will freeze over before I lease an Ultimate Driving Machine and be told an engine failure was the result of my driving habits. This is 2016, not the '70s. Get it together. I melted my transfer box stuck in 16 inches of snow in an alley during the dead of winter. The transfer box did not fail because I had my foot on the accelerator for 4 hours straight. It failed because the fail-safes on the car did not activate and put the car into limp mode to prevent overheating. Also, BMW still continues to make parts of the xDrive system out of plastic because they are cheap. They knew better than to ever, EVER suggest that it was because of my driving that I could not get out of the snow in my AWD f30. I bought xDrive for a reason, and they knew they wouldn't have my business if I was charged even a cent. No one drives these vehicles to be light footed.

[pz619]

Reminds me of the Nissan GT-R and their transmission. Use launch control a few times and you blow your transmission. They denied claims because it was "abuse". Nevermind the fact the only way to get their claimed 0-60 was to use launch control.

Originally Posted by pjohns21

You cannot slanderously use someone's driving habits against them for a warranty repair. There is no proof that the car itself didn't over-rev given the amount of BS and worthless engineering the Germans throw into these vehicles, which is ultimately the reason for their failures. Hell will freeze over before I lease an Ultimate Driving Machine and be told an engine failure was the result of my driving habits. This is 2016, not the '70s. Get it together. I melted my transfer box stuck in 16 inches of snow in an alley during the dead of winter. The transfer box did not fail because I had my foot on the accelerator for 4 hours straight. It failed because the fail-safes on the car did not activate and put the car into limp mode to prevent overheating. Also, BMW still continues to make parts of the xDrive system out of plastic because they are cheap. They knew better than to ever, EVER suggest that it was because of my driving that I could not get out of the snow in my AWD f30. I bought xDrive for a reason, and they knew they wouldn't have my business if I was charged even a cent. No one drives these vehicles to be light footed.