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      09-10-2018, 10:07 PM   #11
K-M3
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Drives: '12 M3
Join Date: Sep 2011
Location: DFW, TX

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Quote:
Originally Posted by BPMSport View Post
Quote:
Originally Posted by K-M3 View Post
Quote:
Originally Posted by BPMSport View Post
27E4 is the Brake Booster Vacuum Sensor - I suspect that a recent brake fluid change or top off has caused this issue. Replace the sensor and clean off the affected area and you'll be good to go.
Apologies for bumping an old post , probably u've gone over this a dozen times on other threads, but car went into limp mode, kinda similar to OPs description. I've got a thread going in the engine section of this forum . Looks like I'm getting similar codes on my Carly -
Replace the sensor and check the wiring for contamination.
I'll search the forum for a diy on this if there is one
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