Does replacing bearings with coated ones void warranty?

myBailey07 · 11-05-2014, 09:04 PM

My car is coming up on end of warranty in three months. I was going to buy extended warranty, primarily to cover against failure of engine or DCT; however, I was also planning on replacing bearings as preventative measure too.

BUT, then I started to think...won't replacing your bearing with non-oem, coated ones void your warranty if your engine goes in any way? How about if an independent shop does it with oem ones? I would assume both would void warranty?...

Now I am wondering...do you just extend warranty and live with the risk hoping that BMW cover you if it goes, or do you not do warranty and replace bearings to manage the risk?

m3ray · 11-05-2014, 09:05 PM

Is this a joke?

smmmurf · 11-05-2014, 09:07 PM

If you get extended warranty do not touch the bearings until it is over. It's like paying for two insurance policies at the same time with one that invalidates the other. They will almost certainly deny you engine warranty work if they found out you had a shop change the bearings.

JRV · 11-05-2014, 09:12 PM

They are OEM, just wpc coated.
If you're going to buy extended warranty to cover power train why not just leave the bearings so you get your money's worth? I understand you want to prevent an issue but that's what warranty is for. Good luck!

myBailey07 · 11-05-2014, 09:13 PM

That's what I thought...either one or the other, but not both....

m3ray · 11-05-2014, 09:15 PM

Yeah I understand this is you thinking out loud. But its common knowledge that anytime you open an engine you void the warranty. If you got the extended just drive it until you blow it up. Then you'll get a new engine.

thekurgan · 11-05-2014, 09:16 PM

Quote:

Originally Posted by JRV

They are OEM, just wpc coated.
If you're going to buy extended warranty to cover power train why not just leave the bearings so you get your money's worth? I understand you want to prevent an issue but that's what warranty is for. Good luck!

Treated, not a coating. Agree, don't crack it open unless it's got symptoms.

JRV · 11-05-2014, 09:17 PM

Quote:

Originally Posted by thekurgan

Quote:

Originally Posted by JRV

They are OEM, just wpc coated.
If you're going to buy extended warranty to cover power train why not just leave the bearings so you get your money's worth? I understand you want to prevent an issue but that's what warranty is for. Good luck!

Treated, not a coating. Agree, don't crack it open unless it's got symptoms.

Ok I thought it was surface treated.

thekurgan · 11-05-2014, 09:43 PM

Quote:

Originally Posted by JRV

Ok I thought it was surface treated.

Yeah, some kind of micro-shot-peening treatment. There used to be some sweet videos on their site showing the anti-friction properties.

STooK · 11-05-2014, 10:19 PM

This is my plan as well. Going to swap them out once my CPO warranty runs out in '17, unless it happens before that.

dagolfpro · 11-05-2014, 10:52 PM

Quote:

Originally Posted by myBailey07

That's what I thought...either one or the other, but not both....

I decided that I'm not buying extended warranty and simply put the money I would have spent on replacing the rod bearings in a couple of years. Just remember, once your warranty expires, you still have the same old rod bearings and you're back to square one. my $.02.

vlvte90 · 11-05-2014, 11:39 PM

Would bearing failure be covered under an extended warranty?

Time Lord · 11-06-2014, 12:06 AM

Yes

mjposner · 11-06-2014, 05:54 AM

"Agree, don't crack it open unless it's got symptoms" These are? Would an oil analysis help?

thekurgan · 11-06-2014, 08:11 AM

Quote:

Originally Posted by mjposner

"Agree, don't crack it open unless it's got symptoms" These are? Would an oil analysis help?

Rod knock. Oil analysis doesn't help unless you've been doing for several changes.

SSJVegita · 11-06-2014, 09:25 AM

Quote:

Originally Posted by thekurgan

Rod knock. Oil analysis doesn't help unless you've been doing for several changes.

and a oil analysis wont wrk if u have a 2011 or up as the rings are the newer ones with no copper so u wont see traces of it

s85e90 · 11-06-2014, 09:29 AM

Here's a good test>>>

Put car in higher gear at a lower RPM and slightly lugging the engine. Tip into the throttle and if you hear a slight knocking immediately that would be indicative of rod bearings on their way out.

Kurt_OH · 11-06-2014, 09:32 AM

Quote:

Originally Posted by SSJVegita

and a oil analysis wont wrk if u have a 2011 or up as the rings are the newer ones with no copper so u wont see traces of it

1. Rings?
2. Ask Blackstone, but I suspect you can still learn from the analysis even first test. Certainly less than subsequent tests but still could detect high levels compared to other M3.

m3ray · 11-06-2014, 10:07 AM

Quote:

Originally Posted by Kurt_OH

1. Rings?
2. Ask Blackstone, but I suspect you can still learn from the analysis even first test. Certainly less than subsequent tests but still could detect high levels compared to other M3.

Those are only average baselines. Every engine is different. He's correct the best and really only way to know what's going on is to baseline and trend your own engine.

thekurgan · 11-06-2014, 10:37 AM

Quote:

Originally Posted by SSJVegita

and a oil analysis wont wrk if u have a 2011 or up as the rings are the newer ones with no copper so u wont see traces of it

Copper is the 2nd layer, IIRC, below the aluminum/tin babbitt, so if you see copper, then you may be into them.

thekurgan · 11-06-2014, 10:42 AM

There is a ton of good information in the Rod Bearing threads down in the Tech/Engine section. It's worth a read.

SSJVegita · 11-06-2014, 10:44 AM

sorry meant bearings not rings lol but 2011 the bearings dont have copper at all so u wont detected it with oil analysis

11-05-2014, 09:04 PM	#1
myBailey07 Live Hard. Live Fast. Live Fearless. Be Kind 23 Rep 66 Posts Drives: 2011 E92 M3 Join Date: Feb 2014 Location: San Antonio Texas iTrader: (0)	Does replacing bearings with coated ones void warranty? My car is coming up on end of warranty in three months. I was going to buy extended warranty, primarily to cover against failure of engine or DCT; however, I was also planning on replacing bearings as preventative measure too. BUT, then I started to think...won't replacing your bearing with non-oem, coated ones void your warranty if your engine goes in any way? How about if an independent shop does it with oem ones? I would assume both would void warranty?... Now I am wondering...do you just extend warranty and live with the risk hoping that BMW cover you if it goes, or do you not do warranty and replace bearings to manage the risk?
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11-05-2014, 09:05 PM	#2
m3ray Banned 101 Rep 701 Posts Drives: '09 e92 M3 Join Date: Jun 2014 Location: New York City iTrader: (0)	Is this a joke?
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11-05-2014, 09:07 PM	#3
smmmurf Colonel 310 Rep 2,189 Posts Drives: E92 M3 DCT 353k+ miles Join Date: Feb 2008 Location: Half Moon Bay, CA iTrader: (7)	If you get extended warranty do not touch the bearings until it is over. It's like paying for two insurance policies at the same time with one that invalidates the other. They will almost certainly deny you engine warranty work if they found out you had a shop change the bearings.
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11-05-2014, 09:12 PM	#4
JRV Captain 119 Rep 922 Posts Drives: 2011.75 AWE90M3 Join Date: Aug 2008 Location: CT iTrader: (1)	They are OEM, just wpc coated. If you're going to buy extended warranty to cover power train why not just leave the bearings so you get your money's worth? I understand you want to prevent an issue but that's what warranty is for. Good luck! __________________ '11 Black/Black GLK350 (Wife) '19 Black RAM 1500 Big Horn Night Package '11 Loaded AW Fox Red/Black/Black Carbon Leather ZCP E90 M3 (Halloween Delivery)
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11-05-2014, 09:13 PM	#5
myBailey07 Live Hard. Live Fast. Live Fearless. Be Kind 23 Rep 66 Posts Drives: 2011 E92 M3 Join Date: Feb 2014 Location: San Antonio Texas iTrader: (0)	No joke, just me overthinking things, like usual...:-0 That's what I thought...either one or the other, but not both....
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11-05-2014, 09:15 PM	#6
m3ray Banned 101 Rep 701 Posts Drives: '09 e92 M3 Join Date: Jun 2014 Location: New York City iTrader: (0)	Yeah I understand this is you thinking out loud. But its common knowledge that anytime you open an engine you void the warranty. If you got the extended just drive it until you blow it up. Then you'll get a new engine.
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11-05-2014, 10:19 PM	#10
STooK Lieutenant Colonel 727 Rep 1,974 Posts Drives: 2013 E92 M3 ZCP Join Date: Sep 2011 Location: NY iTrader: (6)	This is my plan as well. Going to swap them out once my CPO warranty runs out in '17, unless it happens before that. __________________ 2013 BMW E92 ///M3 AW/BLK ZCP CF Roof 6 Speed - Perfection 2011 BMW E90 328i xDrive Space Grey/Black - Daily 2011 BMW E93 ///M3 MW/FR/BLK 6 Speed - Gone but not forgotten
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11-05-2014, 11:39 PM	#12
vlvte90 Private First Class 9 Rep 133 Posts Drives: 2011 E90 M3 Join Date: Aug 2014 Location: Los Angeles iTrader: (0)	Would bearing failure be covered under an extended warranty?
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11-06-2014, 12:06 AM	#13
Time Lord BimmerPost Supporting Vendor 125 Rep 698 Posts Drives: 2018 F80 ZCP Join Date: Mar 2011 Location: NW Florida iTrader: (5)	Yes
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11-06-2014, 05:54 AM	#14
mjposner Brigadier General 901 Rep 3,071 Posts Drives: 2020 Z4 40i Join Date: Mar 2011 Location: Southwest Florida iTrader: (3)	"Agree, don't crack it open unless it's got symptoms" These are? Would an oil analysis help? __________________ Previous BMW: 16 M4, 13 M6; 14 M235i, 12 BMW M3; 11 BMW M3; 08 BMW M3; 08 BMW Z4M; 04 X3; 02 M3 Convertible; 02 M3; 00 M Roadster; 94 325 convertible; 92 325i Convertible; and 85 635csi My Car Photo Blog: http://carfisheye.blogspot.com/
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11-06-2014, 09:29 AM	#17
s85e90 Brigadier General 192 Rep 3,633 Posts Drives: black e90 Join Date: Jan 2014 Location: everywhere iTrader: (2)	Here's a good test>>> Put car in higher gear at a lower RPM and slightly lugging the engine. Tip into the throttle and if you hear a slight knocking immediately that would be indicative of rod bearings on their way out.
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11-06-2014, 10:42 AM	#21
thekurgan Bad Lieutenant 233 Rep 3,517 Posts Drives: E90M3 Join Date: Aug 2007 Location: Sacramento iTrader: (0) Garage List 2008 BMW M3 [0.00]	There is a ton of good information in the Rod Bearing threads down in the Tech/Engine section. It's worth a read. __________________ 02 E39M5 \| TiAg/Schwartz \| Tubi Rumore \| Ultimate Ti Pedals \| E60 SSK \| Jim Blanton 3.45 40/100% \| Coby Alcantara \| StrongStrut STB
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11-06-2014, 10:44 AM	#22
SSJVegita Lieutenant 66 Rep 589 Posts Drives: E92 BMW M3 Join Date: Sep 2012 Location: Central FL iTrader: (1)	sorry meant bearings not rings lol but 2011 the bearings dont have copper at all so u wont detected it with oil analysis
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