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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Cobb accessport



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      01-26-2013, 06:11 PM   #1
BMW335icoupe
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Cobb accessport

Will this void my warranty. I know there have been threads about this but I have an '09 with 70,000 miles. I have an N54. I have CPO and the maintenance package.

Thanks
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      01-26-2013, 06:30 PM   #2
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I'm wondering the same thing. I own a 07 335i that I purchased from a private party and the bmw dealership sold me a warranty thru "penske". Would the JB4 or AccessPort void my warranty even if i converted the car back to stock settings before warranty repair?
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      01-26-2013, 06:31 PM   #3
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if u left it on the car when u take it in it most likely would. the beauty of cobb is how easy it is to uninstall before dealerships. i say go for it.
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      01-26-2013, 06:37 PM   #4
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The short answer is yes, they will void your warranty if they find out you tuned it.

However, the stock engine configuration is saved on the Cobb, so if you ever have to take it into the dealer you can revert it to stock and they will not know you tuned it.

Just be smart about how far you push the tune!
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      01-26-2013, 07:41 PM   #5
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Dealers know when your car has been tuned. It stores shadow codes that log every time the ECU is flashed so it isn't hard for them to figure out that you are removing a tune every time you take it in. That said, most dealers don't care and just want the warranty work.
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      01-26-2013, 07:48 PM   #6
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Ok thanks for the help guys. The main reason I am going to use it is simply for the race gas function. I go down to mid ohio a lot for photography and they have 110 octane race gas. I am simply going to ask my dealer if they will still do warranty work.

Should I have it in writing.

Thanks,
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      01-26-2013, 07:49 PM   #7
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I will just email him. It is still in writing that way.
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      01-26-2013, 08:04 PM   #8
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I uninstall/unmarry the COBB with the car everytime i take it in for maintenance. No one has said a thing at all.
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      01-26-2013, 08:57 PM   #9
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Just uninstall before dealership visit!
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      01-27-2013, 01:22 AM   #10
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You're going to love the Cobb. It will overwhelm the rear suspension though, even with sports suspension.

I honestly think suspension needs to be upgraded
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      01-27-2013, 05:25 AM   #11
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Don't ask the dealer to give you any sort of assurance in writing. They won't do it and you are just putting them in an impossible position by asking for that. The only way to be 100% safe warranty-wise is to leave the car alone. Once you make the decision to tune, you just go into the dealer like a boss and act real cool. You don't say shit, they won't say shit.
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      01-27-2013, 11:51 AM   #12
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Quote:
Originally Posted by BMW335icoupe
Ok thanks for the help guys. The main reason I am going to use it is simply for the race gas function. I go down to mid ohio a lot for photography and they have 110 octane race gas. I am simply going to ask my dealer if they will still do warranty work.

Should I have it in writing.

Thanks,
Why would you ask them to write you something. That writing just admits you're modding your car and allows them to void it.
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      01-27-2013, 04:08 PM   #13
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I know you didn't ask but as an aside: the single most significant mod you can do to you car, bar none, is a limited slip differential. A 335i in stock form can't really put its power down effectively exiting turns. Putting a tune on the car just makes it worse. If you just zip from stoplight to stoplight or get your jollies by crushing Japanese hatchbacks full of sideways baseball cap-wearing teens, by all means tune it and enjoy. If you really like to drive, start by upgrading the driveline.
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      01-27-2013, 07:32 PM   #14
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Or just wait until your warranty is up and tune?
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