S65 rod bearing failing, what should it sound like?

[Rat3d ///M]

Why was this moved to the "M3 vs..." forum?

What is the M3 vs in this thread? Itself? I am beyond confused.

[Helmsman]

Originally Posted by DTM Fan

I see you're somewhat local. Just recently... A buddy on mine, with a 2010 stock E92 M3 had a failure. He was driving on the highway at 65mph when it happened. The car was towed to the "big, well-known" Charlotte NC dealer.

After spending 2 days investigating, the service advisor called with the bad news. Bearing 6 is destroyed and damage to the crank. Informed him of the lengthy list of parts that are needed and turn-around time. They needed to order a few of the parts from Germany. He explained the process and put him in a loaner. This is the same song and dance for the S65. This isn't caused from any aftermarket parts or tune.

Facts: The Car is a well maintained, One owner, 2010, 54k miles and bone stock. Unless you count an MPE axle back exhaust and OEM carbon splitters. Maybe his window tint blew the motor?!

On my way to buy a powerball ticket. I hear the odds are good!

I'm (nor BMW) say you have to in order to avoid blown bearings, but when you say well maintained do you know if that included smooth warm up before starting to ad RPM? Just curious.

Cheers

[krnnerdboy]

My s54 blew a rod bearing without warning. It made me spin by dumping oil from the hole in the block on to my rear tires.

[davesaddiction]

Originally Posted by ||||||||||

Why was this moved to the "M3 vs..." forum?

What is the M3 vs in this thread? Itself? I am beyond confused.

There were three other popular threads that mods moved to this sections - yours must have just gotten swept up with the others...

[Blyy23]

Hi guys, I changed my rod bearing to wpc warped rod bearing by a nice shop (EXX), but I always hear click noise recently, warm and hot motor only, if the weather is very hot, I can hear the click at idle. So, is rod bearing going bad sign(the click) only appear warm motor?

[OzCraig]

Are you running LiquiMoly?

[Ron1n]

Could I get an ear on this from someone with more attentuation that knows what to listen for? The only sound I’m concerned with is towards the end of the video (around :22).

[bosse92m3]

Hey guys would love to hear your thoughts on how this sounds.
This is a cold start
The car has just passed 100,000km (62,000 miles)

[OzCraig]

Originally Posted by bosse92m3

Hey guys would love to hear your thoughts on how this sounds.
This is a cold start
The car has just passed 100,000km (62,000 miles)

Sounds fairly normal to me. One thing I noticed that yours does the same as mine is the cold start cycle runs for bloody ages!
When I first got the car the CSC would be almost exactly 1 min every start regardless of temp, now in the last few months it runs for nearly 2 mins no matter temp, altitude, weather, etc

[GORDON.M3]

Originally Posted by bosse92m3

Hey guys would love to hear your thoughts on how this sounds.
This is a cold start
The car has just passed 100,000km (62,000 miles)

hmmm this is how my car sounds/starts everyday lol

[bosse92m3]

Originally Posted by OzCraig

Sounds fairly normal to me. One thing I noticed that yours does the same as mine is the cold start cycle runs for bloody ages!
When I first got the car the CSC would be almost exactly 1 min every start regardless of temp, now in the last few months it runs for nearly 2 mins no matter temp, altitude, weather, etc

Good to know!! As far as I can remember the cold start has been about that long, no idea why, I just assumed it was normal

[bosse92m3]

Rod bearings done 500km ago but today on idle I noticed a weird noise, I have posted a video below, any input would be great.
Thanks

[aswy6]

Originally Posted by bosse92m3

Rod bearings done 500km ago but today on idle I noticed a weird noise, I have posted a video below, any input would be great.
Thanks

Does not sound like rod bearings to me. May be belt related?

[bosse92m3]

Originally Posted by aswy6

Does not sound like rod bearings to me. May be belt related?

Thanks for quick reply, i m not to sure, I thought possibly clutch or flywheel but it has the same noise even if I push the clutch in.:

[aswy6]

Originally Posted by bosse92m3

Thanks for quick reply, i m not to sure, I thought possibly clutch or flywheel but it has the same noise even if I push the clutch in.:

open the hood and ask some one to touch the gas pedal couple of times. See if you can track the sound from the belt area. I had a similar sound and it was a bad belt tensioner

[bosse92m3]

Originally Posted by aswy6

open the hood and ask some one to touch the gas pedal couple of times. See if you can track the sound from the belt area. I had a similar sound and it was a bad belt tensioner

Thanks I ll give that a try and report back, I should also mention before this drive the car had been sitting for about two weeks

[aswy6]

Originally Posted by bosse92m3

Thanks I ll give that a try and report back, I should also mention before this drive the car had been sitting for about two weeks

man you should have started with that. Mine sounds like a tractor when it sits for that long

[bosse92m3]

Originally Posted by aswy6

man you should have started with that. Mine sounds like a tractor when it sits for that long

Appreciate it, that take a weight off my shoulders, so just to clarify this vid was taken after a small 25 min drive and before the drive the car was sitting for about 2 weeks.

[kyoo]

what am i even supposed to be listening for here? sounds like my car

[bosse92m3]

Originally Posted by kyoo

what am i even supposed to be listening for here? sounds like my car

Sort of like a tapping/ticking/metal sound, you can hear it better when I'm not revving it