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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Anyone having second thoughts about increased boost



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      03-18-2008, 05:07 PM   #1
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Anyone having second thoughts about increased boost

As the title says given the recent warranty denial reports for wastegate/turbo replacement is anyone getting nervous about their mods to increase boost? Has anyone considered removing the mods? I know one of the master techs at my dealership who told me not to worry about any mods since he and a couple of other guys at the dealership have heavily modded 335is. Still it seems once the BMW reps get involved it doesn't matter how good your relationship with the dealer is.
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      03-18-2008, 05:14 PM   #2
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Quote:
Originally Posted by Blk07335i View Post
As the title says given the recent warranty denial reports for wastegate/turbo replacement is anyone getting nervous about their mods to increase boost? Has anyone considered removing the mods? I know one of the master techs at my dealership who told me not to worry about any mods since he and a couple of other guys at the dealership have heavily modded 335is. Still it seems once the BMW reps get involved it doesn't matter how good your relationship with the dealer is.
Of course everyone feels a little sick inside when one of these stories come up about a refused warranty claim but most of these folks did take some chances by not taking the car back to stock when going in for what they knew might well be a bad turbo.

I think anyone who has been in and out of the ecu case a few times has left some traces but I don't think that is enough to void the warranty. As far as I know you are allowed to work on your own car and take apart pretty much whatever you want as long as you dont damage anything putting it back together.
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      03-18-2008, 05:21 PM   #3
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What about driving on cold nights since that will increase the spike by a PSI or two, will BMW use that as a reason to void the warranty? Lol.
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      03-18-2008, 05:22 PM   #4
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Or you just take out the procede before going to the dealer the same way you would take out an SSTT...

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Originally Posted by MarkNg335i View Post
Look like the Procede is costing more than $1500.
Dinan and sstt is looking soo good right now.
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      03-18-2008, 05:23 PM   #5
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No second thoughts on the SSTT...
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      03-18-2008, 05:25 PM   #6
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Quote:
Originally Posted by radgator1 View Post
Of course everyone feels a little sick inside when one of these stories come up about a refused warranty claim but most of these folks did take some chances by not taking the car back to stock when going in for what they knew might well be a bad turbo.

I think anyone who has been in and out of the ecu case a few times has left some traces but I don't think that is enough to void the warranty. As far as I know you are allowed to work on your own car and take apart pretty much whatever you want as long as you dont damage anything putting it back together.
Nobody likes to see this happen to an owner and it may be an isolated case, on the other hand it may be the first case actually reported on this board. If it is only due to an increase in boost, it is just a matter of time before other tunes suffer the same failure.
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      03-18-2008, 05:26 PM   #7
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If you want to look at it this way....Shiv has his car about 30,000 miles and he has beaten the shit out of it...His original turbos are still intact....Terry at BMS has also beaten the shit out of his car and he has not reported anything back about bad turbos....Yes its unfortunate that this problem happened to Supramano, but so far its an isolated incident...For the future of warranty, everything needs to be taken back to OEM, and that means even taking out the boost guage!!!
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      03-18-2008, 05:26 PM   #8
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Im getting a little worried to be honest. Im running stock right now but only because I removed it for service and sold the jb2h for the hell of it. (holy run-on sentence batman) sorry.
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      03-18-2008, 05:28 PM   #9
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That's why the 2K for the Dinan is worth the price... no worries.
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      03-18-2008, 05:31 PM   #10
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Quote:
Originally Posted by Heli411 View Post
That's why the 2K for the Dinan is worth the price... no worries.
You should research on that as there are folks out there who got Dinan parts for the same reason, only to be left hanging.
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      03-18-2008, 05:46 PM   #11
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Quote:
Originally Posted by wj4 View Post
You should research on that as there are folks out there who got Dinan parts for the same reason, only to be left hanging.
Ultimately, someone will pay, though. Dinan or BMW or both, doesn't matter. Being in the insurance business (warranty is essentially insurance), there will be times when a company feels that the other should pay and vice-versa. As long as someone other than me pays, fine. I've seen some ugly $hit, but it all works out in the end.
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      03-18-2008, 06:13 PM   #12
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Quote:
Originally Posted by cn555ic View Post
but so far its an isolated incident
This is the first post reporting that warranty work was denied, but reports of wastegate failures are too numerous to be considered isolated.
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      03-18-2008, 06:27 PM   #13
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I will guarantee that if a Dinan tuned 335 went in with all of the engine mods that he has, Dinan would not stand behind the warranty if BMW said they were not going to fix the problem.

Again this is if all the engine mods were on the car at time of service.
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      03-18-2008, 06:28 PM   #14
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Quote:
Originally Posted by cn555ic View Post
If you want to look at it this way....Shiv has his car about 30,000 miles and he has beaten the shit out of it...His original turbos are still intact....Terry at BMS has also beaten the shit out of his car and he has not reported anything back about bad turbos....Yes its unfortunate that this problem happened to Supramano, but so far its an isolated incident...For the future of warranty, everything needs to be taken back to OEM, and that means even taking out the boost guage!!!
Alright, I'll bite. Why does that mean even taking out the boost gauge. What harm could the boost gauge do to a warranty??

Dealer: Sorry, but you're warranty is now voided.
Owner: WTF? Why?
Dealer: You have a boost gauge installed.
Owner: So?
Dealer: There's no reason to have one unless you are increasing boost/tuning.
Owner: I installed it cuz I like to see the needle sweeping and to monitor boost levels for any possible leak...I have no tune!
Dealer: Sorry!
Owner: Huh?

Edit: Just read Supramano's thread, that is messed up!

Last edited by Kbueno; 03-18-2008 at 07:04 PM..
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      03-18-2008, 06:31 PM   #15
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Quote:
Originally Posted by wj4 View Post
What about driving on cold nights since that will increase the spike by a PSI or two, will BMW use that as a reason to void the warranty? Lol.
The 335i uses a closed loop system, so a colder night will actually make you have lower boost.....
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      03-18-2008, 06:33 PM   #16
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To answer the original question, yes, I am having very strong second thoughts.
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      03-18-2008, 06:36 PM   #17
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As long as you return your car to stock when you bring it in once or twice a year you will be fine....
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      03-18-2008, 07:47 PM   #18
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Think of it this way, at some point you won't have a warranty anyway. The only downside right now is the lack up an upgrade. If there was one available, it would be much easier to accept a failure possibility; the NEED to upgrade.
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      03-18-2008, 07:57 PM   #19
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the OP and everyone else should be concerned about "increased boost" and modding in general right now. It seems that BMW is looking for any good reason to deny a warranty claim and I'm willing to bet they are keeping close tabs on the forums to see what people are talking about. They don't have to know how you are, they just have to find out what to look for.
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      03-18-2008, 08:22 PM   #20
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Everybody who mods their car inherits a certain risk. When I'm thinking about a mod, I'm not thinking..."oh, I'd better not do this...if for some reason something happens to my car I might be screwed". But I try to gather as much information about the mod that I possibly can to make sure I'm not doing anything to hurt my car. Hell the reason I came on this board to begin with was to gather information.
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      03-18-2008, 10:38 PM   #21
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Quote:
Originally Posted by normtrum View Post
Everybody who mods their car inherits a certain risk. When I'm thinking about a mod, I'm not thinking..."oh, I'd better not do this...if for some reason something happens to my car I might be screwed". But I try to gather as much information about the mod that I possibly can to make sure I'm not doing anything to hurt my car. Hell the reason I came on this board to begin with was to gather information.
I think the concern that people are having, me included, is that turbo replacement is a huge expense, unlike replacing exhaust components, suspension, etc. But I agree, its best to go into things with eyes wide open.
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      03-18-2008, 11:19 PM   #22
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Quote:
Originally Posted by Fraggy View Post
I think the concern that people are having, me included, is that turbo replacement is a huge expense, unlike replacing exhaust components, suspension, etc. But I agree, its best to go into things with eyes wide open.
Ya I won't lie to you...the $6500 quote he got made me do this...
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