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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > N51 EAC Sensor Warranty?



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      01-27-2014, 07:41 AM   #1
index1489
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N51 EAC Sensor Warranty?

I have a friend with a 08 328i @ 54k miles, her car is throwing codes related to the sensor, this should be covered by the 12 year 150k mile warranty the N51 has on emissions related equipment, has anyone had this replaced?


Just FYI the EAC sensor monitors and makes sure the N51 is equipped with the special coated radiator that eats ozone as air is passed through it, it cannot be replaced separately from the rad, and cost around $500 plus 4 hours labor.
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      02-13-2014, 06:45 PM   #2
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Mine is throwing the same code and I'm not planning to replace a $500 fully functional radiator just for a faulty sensor welded at it ! Learn to live with the code(s) or just erase the shadow codes yourself with the usb-ODBII cable from amazon.
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      02-13-2014, 07:57 PM   #3
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Why did you replace it yourself was your car not under the extended emissions warranty?

We have SMOG in California, that might be why we get the warranty, and its covered btw.
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      02-14-2014, 01:31 PM   #4
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My 128i had the same symptom. The dealer said that the radiator was fine and there was a problem with the sensor reading changing as the car got older. It was fixed under warranty by reflashing the ECU.
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