help

Mimmer · 11-13-2020, 11:13 PM

https://youtu.be/i62-TDWQXnY

when i drive my car it will make this random pump sound like its trying to put air .. does go. away but does come back on at random....
its pretty loud and you can hear it from outside as well if door is closed.... sounds like its coming from front passenger side but i dont know if this is below the wheel or like from the engine bay...

please help!

Redd · 11-14-2020, 06:32 AM

Bake vacuum pump. If you're hearing it activate a lot, your brake vacuum sensor is about to fail. You should be getting errors and limp mode soon. Did you change brake fluids recently?

The good news is that you can get just the sensor. It's the same part number as a Z4 MAP sensor and cheap.

Mimmer · 11-14-2020, 11:57 AM

Thanks. I only replaced pads n rotors. Is there a video or link how replace this sensor?

I ordered the part based what others said on thread from searching.

I did get cel half yellow. It didn't do I not limb mode but I drove it back home fine n have kept it off. Hoping this fix will do the trick.

Thanks for confirmation. Sounds like the issue from more research though.

11-13-2020, 11:13 PM	#1
Mimmer Lieutenant 57 Rep 412 Posts Drives: E92 13' Join Date: May 2010 Location: WA iTrader: (1) Garage List 2013 e92 m3 [0.00]	help - sound clip of issue https://youtu.be/i62-TDWQXnY when i drive my car it will make this random pump sound like its trying to put air .. does go. away but does come back on at random.... its pretty loud and you can hear it from outside as well if door is closed.... sounds like its coming from front passenger side but i dont know if this is below the wheel or like from the engine bay... please help!
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11-14-2020, 06:32 AM	#2
Redd Brigadier General 3898 Rep 4,163 Posts Drives: 2010 BMW E92 M3 Dakar Edition Join Date: Jul 2015 Location: Malaysia iTrader: (0)	Bake vacuum pump. If you're hearing it activate a lot, your brake vacuum sensor is about to fail. You should be getting errors and limp mode soon. Did you change brake fluids recently? The good news is that you can get just the sensor. It's the same part number as a Z4 MAP sensor and cheap.
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11-14-2020, 11:57 AM	#3
Mimmer Lieutenant 57 Rep 412 Posts Drives: E92 13' Join Date: May 2010 Location: WA iTrader: (1) Garage List 2013 e92 m3 [0.00]	Thanks. I only replaced pads n rotors. Is there a video or link how replace this sensor? I ordered the part based what others said on thread from searching. I did get cel half yellow. It didn't do I not limb mode but I drove it back home fine n have kept it off. Hoping this fix will do the trick. Thanks for confirmation. Sounds like the issue from more research though.
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