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      07-01-2019, 09:49 PM   #1
ab022688
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2014 BMW M6 Comp. Engine knocking... Any advice?

So I've had my 2014 M6 Competition Convertible for 11 months now with 35001 miles on it now and bought it with 28950 miles. Up until a few nights ago I loved every minute of it. Car is completely stock, no mods whatsoever. Can also ran flawlessly up until this night.

Took it out to run an errand and heard a faint "tapping" sound about a few miles into the drive... I figure I'd pull over to check - popped the hood, didn't see or smell anything that would cause an alarm to go off. I was a couple miles from the house but didn't want to risk anything so I turned around and went home. As I pull into the driveway and open my door I hear a loud knocking noise coming from the engine... now I'm worried.

I later proceeded to run the engine oil level check and it says oil level OK. I then had a friend who is a tech come over and look at the car and he basically said the engine is done. Either a spun rod bearing or a bent rod and I would need a new engine.

The car has been meticulously serviced by the previous owner according to the Carfax and I just did an oil change at a BMW dealership just 3000 miles ago. He mentioned that maybe something happened there to lead up to the rod going. I have contacted BMW NA and they said to take it to the dealer for a diag. and they will see what they can do but she didn't sound to confident on being able to help out.

Anyone have any advice out there as to what I can do?

Here is a link to the noise that it's making now:

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      07-02-2019, 05:23 AM   #2
BM dnobagaV
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Sorry for your loss


So many years yet BMW still can't make an engine that doesn't implode on itself without warning.
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      07-02-2019, 05:55 AM   #3
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is it under warranty still?

so many s63tu engines with knocks now, most of them stock engines... something wrong with BMW
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      07-02-2019, 06:57 AM   #4
ab022688
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Unfortunately no, it's a year and a few months out of factory warranty, and of course I didn't purchase an extended...
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      07-02-2019, 08:51 AM   #5
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This is brutal, especially as a 14' owner. So what are the real options here? And forgive me for not having the mechanical knowledge. Total replacement? Repair? What is associated costs for each. Damn shame a car with sticker over 100k cant last 5 years, with no mods either.
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      07-02-2019, 04:45 PM   #6
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Quote:
Originally Posted by mikerx5 View Post
This is brutal, especially as a 14' owner. So what are the real options here? And forgive me for not having the mechanical knowledge. Total replacement? Repair? What is associated costs for each. Damn shame a car with sticker over 100k cant last 5 years, with no mods either.
At this point everyone is telling me I need a new engine - no point in rebuilding it since it won't be cost effective, not sure what to do... spending $15+ on a used engine doesn't make much sense to me.
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      07-02-2019, 06:39 PM   #7
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Quote:
Originally Posted by ab022688 View Post
At this point everyone is telling me I need a new engine - no point in rebuilding it since it won't be cost effective, not sure what to do... spending $15+ on a used engine doesn't make much sense to me.
Get a used engine, sell the car, recover what you can. Or drive it for another couple of years after the used engine goes in. Hopefully BMWNA splits the cost with you or covers a new engine, keep fighting with them until they make a final decision. Another option would be to find a shop that is reasonably priced and have them rebuild the heads, if your block and pistons/crank are all fine then rebuilding the top end should be half of the used engine or less and it could just be one head and then it should be even less.
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      07-02-2019, 06:59 PM   #8
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Quote:
Originally Posted by SoCalM6GC View Post
Quote:
Originally Posted by ab022688 View Post
At this point everyone is telling me I need a new engine - no point in rebuilding it since it won't be cost effective, not sure what to do... spending $15+ on a used engine doesn't make much sense to me.
Get a used engine, sell the car, recover what you can. Or drive it for another couple of years after the used engine goes in. Hopefully BMWNA splits the cost with you or covers a new engine, keep fighting with them until they make a final decision. Another option would be to find a shop that is reasonably priced and have them rebuild the heads, if your block and pistons/crank are all fine then rebuilding the top end should be half of the used engine or less and it could just be one head and then it should be even less.
How tough is it to find a shop that can do that? Rebuilding for 5k is a lot more inviting than the alrernatives
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      07-02-2019, 07:14 PM   #9
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How tough is it to find a shop that can do that? Rebuilding for 5k is a lot more inviting than the alrernatives
Just depends on where you live, out here in SoCal there are a lot of shops that can reliably rebuild a BMW engine. I would stray away from BMW specific shops and find a shop with a really good experienced mechanic that has worked on late model cars and see if they have worked on a newer BMW engine. A lot of the times body shops know people, performance shops know people as well, that would be a good place to start.
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      07-02-2019, 10:27 PM   #10
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Quote:
Originally Posted by SoCalM6GC View Post
Get a used engine, sell the car, recover what you can. Or drive it for another couple of years after the used engine goes in. Hopefully BMWNA splits the cost with you or covers a new engine, keep fighting with them until they make a final decision. Another option would be to find a shop that is reasonably priced and have them rebuild the heads, if your block and pistons/crank are all fine then rebuilding the top end should be half of the used engine or less and it could just be one head and then it should be even less.
Yeah I agree, I'm dealing with BMW NA for the time being to see how it pans out - seems like this is the best option at this point... Still am just so disappointed in this car - I really loved this thing and it just burns me to see this as the outcome.
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      07-02-2019, 11:53 PM   #11
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Makes me reconsider the M6...
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      07-03-2019, 03:22 AM   #12
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Do you think BMW gave any reimbursements to the 99% of e60 M5 owners whose engines blew? Hell no. That one major instance is why I will never understand people who hold this company so dear to their hearts.
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      07-03-2019, 05:47 AM   #13
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Sorry to hear of your problems with the M6.

Secondhand engines here in the UK are about 5000 to 6000, plus fitting. No idea what a rebuild would cost - a lot will depend upon what the engineer finds after tear down.

That's one of the reasons I believe it's worthwhile paying for an extended warranty.
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      07-03-2019, 09:14 AM   #14
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Sorry to hear of your problems with the M6.

Secondhand engines here in the UK are about £5000 to £6000, plus fitting. No idea what a rebuild would cost - a lot will depend upon what the engineer finds after tear down.

That's one of the reasons I believe it's worthwhile paying for an extended warranty.
Make a point, except what are options if car is bought with no warranty?
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      07-03-2019, 03:05 PM   #15
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Make a point, except what are options if car is bought with no warranty?
I think he means that you can buy a 3rd party warranty of some sort even if the car is purchased without the BMW warranty.
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      07-03-2019, 03:22 PM   #16
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Quote:
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Quote:
Originally Posted by mikerx5 View Post
Make a point, except what are options if car is bought with no warranty?
I think he means that you can buy a 3rd party warranty of some sort even if the car is purchased without the BMW warranty.
I need to look into that, if anyone has a recommendation id be interested.
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      07-03-2019, 04:53 PM   #17
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You could take it to BMW first and let them look at it. Their automatic response will most likely be engine replacement. Their quote is going to be well north of $30K from what most people on the forum are saying. After that I would have a specialized performance engine shop (that has rebuilt BMW engines) diagnose it. There are a couple instances on the forum where it was just a blown head gasket and I pray for you that is all it is. Unfortunately this is the curse of the s63tu motor. But that is the risk we take with these cars. Good luck brother.
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      07-03-2019, 10:48 PM   #18
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This is my main fear with my M6 as well. I can handle most small issues, but a $30k issue would be insane.

Can your insurance come into play if the car is now "totaled" due to the cost?

$30k is over half the value of my M6...
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      07-04-2019, 06:20 AM   #19
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Originally Posted by Superfluous View Post
This is my main fear with my M6 as well. I can handle most small issues, but a $30k issue would be insane.

Can your insurance come into play if the car is now "totaled" due to the cost?

$30k is over half the value of my M6...
Same
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      07-04-2019, 11:27 AM   #20
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Originally Posted by Superfluous View Post
This is my main fear with my M6 as well. I can handle most small issues, but a $30k issue would be insane.

Can your insurance come into play if the car is now "totaled" due to the cost?

$30k is over half the value of my M6...
As far as I know insurance (Geico for me) will only total the car if there is outside influence on the engine going bad - i.e. something in the road hit the underside and caused oil to leak out and your engine seizes. They won't cover internal mechanical damage since that should be covered by a warranty as far as the insurance company is concerned. I have not however reached out to them to confirm - this is just what I've heard so far. If the BMW NA thing goes nowhere I will give that a shot but I'm not getting my hopes up on that.
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      07-04-2019, 08:37 PM   #21
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damn this is sad...

Guess ill be purchasing that extended warranty lol
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      07-07-2019, 03:43 PM   #22
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This sounds awful-hope the problem turns out to be a lot less worse than you think! Please keep us posted.
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