BMW M3 Forum (E90 E92) - View Single Post

BPMSport · 06-20-2016, 02:11 PM

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.

06-20-2016, 02:11 PM	#5
BPMSport BimmerPost Supporting Vendor 3387 Rep 7,542 Posts Drives: Harrop M3 / F10 M5 / F82 M4 Join Date: Apr 2008 Location: SoCal iTrader: (9) Garage List 2000 BMW M5 [0.00] 1990 BMW 735i Turbo [0.00] 2008 BMW M3 [7.50] 2015 BMW M3 [0.00] 2015 BMW M5 [0.00]	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. __________________ -----\| Like us on Facebook \| Instagram \|\| Tuning Information \| Remote Coding \|----- ----Visit us at www.BPMSport.com - Emotion. Driven. \| Toll Free: (888) 557-5133----
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