[F32Fleet]

Creating a thread so search engines will pick it up.

[joe_planet]

Wonder what they charge for this service?

[GreekboyD]

Originally Posted by joe_planet

Wonder what they charge for this service?

About $1500-2000. The intake manifold is sent away for cleaning too.

[DieselRacer]

Cool write up

[van335d]

My dealer (BMW Canada) would not cover this under CPO initially until I showed them this bulletin.

Make this a sticky!

[Nushibo]

Hooraaay! my bet paid off for purchasing extended warranty haha. Agreeing on the Sticky!

[dixy2k]

Originally Posted by joe_planet

Wonder what they charge for this service?

$4000-$5100

I will get one more quote this Wed-Thur from a different dealer.

[joe_planet]

So greek said its 1.5 to 2k hopefully its around that or less

[GreekboyD]

Originally Posted by joe_planet

So greek said its 1.5 to 2k hopefully its around that or less

This what a buddy of mine who works for BMW told you. Then again, I could see dealers having a field day with this.

[DSB335d]

So where is this SIB? Can I download it from somewhere?

[DieselRacer]

Originally Posted by Nushibo

Hooraaay! my bet paid off for purchasing extended warranty haha. Agreeing on the Sticky!

Why would this be covered under warranty, it just showing how they clean it says nothing about honoring CBU cleaning with the warranty...

[BMW1983]

Originally Posted by DieselRacer

Why would this be covered under warranty, it just showing how they clean it says nothing about honoring CBU cleaning with the warranty...

As I read it,CBU removal is a warranty covered service if it can be shown to be affecting vehicle function e.g throwing codes such as those shown. It doesn't seem to me that this is covered under warranty as a preventive measure to be performed as routine service.

[DieselRacer]

Originally Posted by BMW1983

As I read it,CBU removal is a warranty covered service if it can be shown to be affecting vehicle function e.g throwing codes such as those shown. It doesn't seem to me that this is covered under warranty as a preventive measure to be performed as routine service.

Good to know, best case scenario is to have codes thrown at 90k miles get the cleaning right before the 100k warranty is up...

[Orygun]

Originally Posted by DieselRacer

Why would this be covered under warranty, it just showing how they clean it says nothing about honoring CBU cleaning with the warranty...

Next to last page of the SIB:

"WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle/SAV Limited Warranty or the BMW Certified Pre-Owned Program."

[Nushibo]

Originally Posted by Orygun

Next to last page of the SIB:

"WARRANTY INFORMATION
Covered under the terms of the BMW New Vehicle/SAV Limited Warranty or the BMW Certified Pre-Owned Program."

Would this apply to Gold extended warranty since it basically is CPO? I got confused for a second lol.

[joe_planet]

Bmw switched the wording of their warranties. They tell you what is not covered. If its not on the list its covered

[DieselRacer]

Originally Posted by Nushibo

Would this apply to Gold extended warranty since it basically is CPO? I got confused for a second lol.

good question, I bought mine private and bought extended warranty through BMW...

[Nushibo]

Originally Posted by DieselRacer

good question, I bought mine private and bought extended warranty through BMW...

I think it should be since http://www.bmwusa.com/Standard/Conte...rotection.aspx

Says Cylinder head, intake, gaskets and such. If not, time to cause a storm at BMW when the time comes.

[DieselRacer]

Originally Posted by Nushibo

I think it should be since http://www.bmwusa.com/Standard/Conte...rotection.aspx

Says Cylinder head, intake, gaskets and such. If not, time to cause a storm at BMW when the time comes.

Big tornado hurricane storm

[07Bavarian335]

Hi all,

I recently picked up a 2009 335d and am having a local shop perform this cleaning due to some error codes I was getting that pointed to carbon buildup. Turns out, the motor had a ton of build up and this is a service it definitely needed.

However, after a day of working on the car the shop informed me they didn't have the tool to lock the crankshaft hub / advance the pistons/valves to TDC.

They said it'd be an extra day or two - totally understandable.

Then I was called to come in to the shop to give them "advice" on how to move forward. Apparently the build up in one cylinder was really bad and when they pulled the glow plug out debris somehow fell "under the piston" and are inside the cylinder. They said maybe I had a bent rod that caused this. I can't imagine the car running well when I took it in (outside the error codes you wouldn't know there were any issues).

They said they can try to clean as best they can but can't be 100% sure there's no debris trapped under the piston and the only way to know for sure would be to pull the head.

My question: Is this due to not advancing the pistons/valves to TDC before cleaning each cylinder? Is it possible for this to happen if the TSB at the top of this article was followed?

That's the way I see it, but before I ask them these questions I want to make sure I'm correct and not pointing fingers. They seem like good guys that know diesels better than most local shops and I don't want to try and get out of a bill that I should pay.

I also don't want to pay another $3k to pull the head if a corner was cut earlier and I shouldn't be in this situation in the first place.

Any thoughts? This is my first diesel and I'm not as familiar with them as I'd like to be.

[nwsnowboarder]

I think you mean under the valve, not under the piston.

You are absolutely correct. The procedure of rotating the engine ensures that the intake valves are closed prior to blasting each cylinders intake. You start at cylinder 1 at TDC, perform the cleaning for that cylinder, then rotate to the next cylinder, repeat, etc. If the procedure is followed there is no way that walnut shells or anything else can get past the valves and into the cylinder.

I don't understand why they pulled the glow plugs, as they are not part of the procedure, nor affected since they are not in the intake. If they pulled the glow plugs, the only thing that could drop off the glow plug is the element that heats up, which would be very obviously broken off once the glow plug was removed.

It sounds to me, and this is pure speculation, that they might not have covered the other intakes while they were blasting the one at TDC and accidentally dropped something that fell into an uncovered intake that had an open valve, again pure speculation. There is at least one video on YouTube that shows the carbon blasting process, watch it to familiarize yourself with the process.

Perhaps they rotated the engine before ensuring all the walnut shells were vacuumed out. As soon as the valve opened, the shells would have dropped into the cylinder, on top of the piston.

With the intake off the engine should rotate relatively easily by hand.

[Got_Diesel]

My dealer would have charged about $1,800 but it was all covered under my CPO. $50 deductible is all I paid.