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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 > Cobb guys: what to do when taking to dealership?



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      11-12-2012, 07:59 AM   #1
Zuluaga
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Cobb guys: what to do when taking to dealership?

Im planning to take my car in for service and while at it I wanted them to fix some little things I have had for a while ( one of my halo lights is intermittent, and one of my back speakers sounds like its blown)

Either way- I am FBO with Cobb as computer management. What do you guys do? Close your eyes and pray? or take it to stage 0 and advice the service rep?

thanks in advance,
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      11-12-2012, 08:07 AM   #2
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unflash the cobb, since its the easiest thing ever. clear codes and go in They shouldnt even look under the hood for that stuff, (do you have a BOV?)
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      11-12-2012, 08:18 AM   #3
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Yes- I do have a blow off valve along with Down pipes and ER front mount. Stock air box though.
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      11-12-2012, 08:23 AM   #4
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Unmarrying the AP is definitely going to throw a code due to the catless dp's. Everytime you bring your car in for service the techs always perform what the call "a standard scope". Basically scan your car for any issues. Pretty sure that CEL for your catless dp's is going to show up.

Last edited by BoostedE90; 11-12-2012 at 08:54 AM.
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      11-12-2012, 08:46 AM   #5
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so you guys recommend I falsh it to 0 or leave it as stage 2 and just clear codes? I dont have any cels showing or anything
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      11-12-2012, 09:19 AM   #6
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Quote:
Originally Posted by BoostedE90 View Post
Unmarrying the AP is definitely going to throw a code due to the catless dp's. Everytime you bring your car in for service the techs always perform what the call "a standard scope". Basically scan your car for any issues. Pretty sure that CEL for your catless dp's is going to show up.
Yes, but even if you leave the Cobb installed -- as to not throw a code for catless DPs -- the car will not show OBDII "readiness" (which dealers routinely check) unless you also have connected a DP fix.

Neil
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      11-12-2012, 10:12 AM   #7
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the real point here is that downpipes and warranty tend not to play nice. Ive had CPO work done on my car and nothing was ever said about the FMIC, i t
removed cobb and the dci before taking it in. Downpipes and a bov will be tough, unless the dealer is extremely mod-friendly. regardless, remove AP completely, if they find stage2 mapping your warranty claims could be denied.
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      11-12-2012, 03:43 PM   #8
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I don't do anything but take it in. I have a good relationship with the service advisors, manager, and techs. However, I was denied new turbo for waste gate rattle, lol. I was told that since they know I'm modded, I would at least have to remove ONLY my tune, dp and charge pipe. Wish I would have known that before I threw my stock charge pipe away. Anywho, FMIC, suspension, exhaust, and intakes are fine (@ my dealer).
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      11-12-2012, 04:33 PM   #9
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My car is FBO & luckily the dealer I get serviced is really cool about it. I usually install the COBB tune right in the dealer's parking lot before my service appointment. That way an SES/CEL doesn't get triggered by being catless.
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