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      06-05-2014, 01:50 PM   #1
DChan
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Carbon Build Up in Valves.

So BMW's had my car for about 2-3 weeks now. And they got a technical bulletin on this.

Build up of carbon in my valves.

I have Extended warranty and they told me this is not covered.

Is there something I'm missing here?

Last edited by DChan; 06-30-2014 at 03:18 PM..
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      06-05-2014, 03:12 PM   #2
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Quote:
Originally Posted by DChan View Post
So BMW's had my car for about 2-3 weeks now. And they got a technical bulletin on this.

Build up of carbon in my valves. They have to take out the manifold and the turbos and they said it's going to cost me about $6000 in repairs....

I have Extended warranty and they told me this is not covered.

Is there something I'm missing here?
Insurance company (extended warranty) won't consider this a "mechanical breakdown" so they will deny your claim and/or find some way to not pay. I am sure it states this as some sort of disclaimer language in your policy, open loophole if you will. If you purchased from a Dealer ask them if BMW will give you some "goodwill" towards the repair.
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      06-05-2014, 04:18 PM   #3
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This warranty is directly from BMW not a third party warranty?

Last edited by DChan; 06-30-2014 at 03:18 PM..
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      06-05-2014, 04:21 PM   #4
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http://www.bmwusa.com/standard/conte...contracts.aspx

this link says the values and stuff are covered under the extended
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      06-05-2014, 06:51 PM   #5
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There is no way a walnut blast should cost that much.
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      06-05-2014, 06:58 PM   #6
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Quote:
Originally Posted by DChan View Post
http://www.bmwusa.com/standard/conte...contracts.aspx

this link says the values and stuff are covered under the extended
Not to argue, but that's BMW USA not Canada. Read over your policy and make sure it is BMW Canada and not third party.
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      06-05-2014, 07:36 PM   #7
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Quote:
Originally Posted by m3 guy View Post
There is no way a walnut blast should cost that much.


TBH from what I've been hearing, and I've called a few other shops in Vancouver, they're doubting that my Engine light is on is due to carbon build up.

Last edited by DChan; 06-30-2014 at 03:18 PM..
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      06-05-2014, 07:47 PM   #8
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Actually I have CPO warranty..

Certified Series Protection Plan..
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      06-05-2014, 08:06 PM   #9
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Quote:
Originally Posted by DChan View Post
That's the price quote I got from Brian Jessel BMW in Vancouver.

TBH from what I've been hearing, and I've called a few other shops in Vancouver, they're doubting that my Engine light is on is due to carbon build up.
I'm going to agree with the other shops. The build up would have to be so dramatic that it would impede valve movement. If that was the case then I don't see why the CPO wouldn't cover it.

As an aside carbon build up is a fact of life now for direct injection motors. No amount of cleaning additive added to your fuel will help either since fuel no longer goes up there. The build up is from the blow back of the recirculating system. A catch can would help, but not entirely prevent the occurrence. The walnut blast has proven to be the best maintanece method of keeping it under control and is a technique regularly used by BMW USA over here in the states. Not sure if BMW Canada uses the same procedure, but I don't see why they wouldn't. I plan to do mine every 40k miles as I've hear people say every 50k miles and others, especially with the N54 motor, every 30k miles. So I'm going right in the middle.

Definitely check out another dealership since you are still in cpo warranty. You could first also go to an independent mechanic for a proper diagnosis so you have some ammo when you go into the next dealer. Good luck!

Let us know what happens either way.
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      06-05-2014, 08:11 PM   #10
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Quote:
Originally Posted by m3 guy View Post
I'm going to agree with the other shops. The build up would have to be so dramatic that it would impede valve movement. If that was the case then I don't see why the CPO wouldn't cover it.

As an aside carbon build up is a fact of life now for direct injection motors. No amount of cleaning additive added to your fuel will help either since fuel no longer goes up there. The build up is from the blow back of the recirculating system. A catch can would help, but not entirely prevent the occurrence. The walnut blast has proven to be the best maintanece method of keeping it under control and is a technique regularly used by BMW USA over here in the states. Not sure if BMW Canada uses the same procedure, but I don't see why they wouldn't. I plan to do mine every 40k miles as I've hear people say every 50k miles and others, especially with the N54 motor, every 30k miles. So I'm going right in the middle.

Definitely check out another dealership since you are still in cpo warranty. You could first also go to an independent mechanic for a proper diagnosis so you have some ammo when you go into the next dealer. Good luck!

Let us know what happens either way.
Thanks man,

I've been reading around. People with engine lights come on due to this issue had been covered under CPO warranty. I got denied once and my service advisor sent the claim out again.

I don't see why this isn't covered either especially when my check engline light is on.

Thanks. My friend who's a mechanic at the BMW vancouver store even said it should be covered. I will bring my car to them if brian jessel can't do anything about the issue.
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      06-06-2014, 10:44 AM   #11
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Good luck and keep us posted.
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      06-06-2014, 02:12 PM   #12
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Originally Posted by CrazyRC View Post
Good luck and keep us posted.
Hey all, Just received a call back from my service advisor. Good news, they are doing the walnut blasting under goodwill and also informed me that this is not covered under the CPO warranty. Regardless I believe it's your service advisor that can get the job done for you.
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      06-06-2014, 10:53 PM   #13
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Quote:
Originally Posted by DChan
Quote:
Originally Posted by CrazyRC View Post
Good luck and keep us posted.
Hey all, Just received a call back from my service advisor. Good news, they are doing the walnut blasting under goodwill and also informed me that this is not covered under the CPO warranty. Regardless I believe it's your service advisor that can get the job done for you.
Congrats, that must be a relief! Let us know how it drives after. See if they can take before and after pics for you.
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      06-10-2014, 04:57 PM   #14
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I've had the carbon cleaning done twice on my 2009 135i. Both times I've witnessed a noticeable improvement in how the engine breathes. I also noticed a slight improvement to MPG after having it done. On all 80% highway driving I used to get 260 miles on a full tank (13.5 US gallons) Now I regularly approach 300 miles per tank on the same route. I'm fortunate that I have a buddy who owns a shop that can take care of the carbon build up at a very reasonable price, so I get it done every 40k miles.

My gf and I recently bought an 2011 X6 35i which is why I lurk here too.
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      06-18-2014, 12:40 PM   #15
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Quote:
Originally Posted by m3 guy View Post
Congrats, that must be a relief! Let us know how it drives after. See if they can take before and after pics for you.
No pictures, but the drive feels like it was fresh off the lot.

Also got an Oil change done. Maybe that helped.
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      06-18-2014, 04:13 PM   #16
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Quote:
Originally Posted by DChan View Post
No pictures, but the drive feels like it was fresh off the lot.

Also got an Oil change done. Maybe that helped.
That's great, glad to hear it. Thanks for the update!
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