Brake Vacuum Pump Noise?

[Route 16]

Originally Posted by tougetrained

Resolved this a while ago^. Just replaced the part. I did go into limp mode at the time.

what's the part number? I can't find it in fcpeuro

[S65 SCHNAUZER]

Originally Posted by Route 16

what's the part number? I can't find it in fcpeuro

https://www.fcpeuro.com/products/bmw...or-34302283605

[Tommysalami]

Originally Posted by JIYONG

https://www.fcpeuro.com/products/bmw...or-34302283605

no need to buy the whole vacuum line. just replace the sensor with this:

https://www.fcpeuro.com/products/bmw...or-13628617097

[S65 SCHNAUZER]

Originally Posted by Tommysalami

no need to buy the whole vacuum line. just replace the sensor with this:

https://www.fcpeuro.com/products/bmw...or-13628617097

I actually did this at first but over time I got the code again so ended up replacing the entire line

[Tommysalami]

Originally Posted by JIYONG

I actually did this at first but over time I got the code again so ended up replacing the entire line

Guess it depends what was causing the code in the first place. When I spilled fluid on my sensor, just replacing the sensor was all I needed. Luckily the sensor by itself is quite cheap, so there's not much harm to start with that.

[tbone28]

replacing just the sensor worked for me

[W12x]

Originally Posted by Tommysalami

no need to buy the whole vacuum line. just replace the sensor with this:

https://www.fcpeuro.com/products/bmw...or-13628617097

Don't see any 335 or M3 in the fitment list for this part on FCP Euro, but with BMW South Atlanta it does list M3 with same PN but parts look different lol....

Just did my brakes the past weekend and spilled a good amount of fluid when filling the reservoir, thinking about if i should replace this anyways....haven't noticed any problem yet, but looks like there is a high chance of it going bad soon

[Redd]

Originally Posted by W12x

Don't see any 335 or M3 in the fitment list for this part on FCP Euro, but with BMW South Atlanta it does list M3 with same PN but parts look different lol....

Just did my brakes the past weekend and spilled a good amount of fluid when filling the reservoir, thinking about if i should replace this anyways....haven't noticed any problem yet, but looks like there is a high chance of it going bad soon

That's cos BMW won't sell you just the sensor for our cars, you need to buy the whole brake line with sensor. Someone did a part number match and turns out the sensor in the brake line kit is the same sensor that is used as a MAP sensor for another car. So just buy the sensor and replace it. You can even get cheap ones on Amazon for $20+. Many have done it.

[W12x]

Originally Posted by Redd

That's cos BMW won't sell you just the sensor for our cars, you need to buy the whole brake line with sensor. Someone did a part number match and turns out the sensor in the brake line kit is the same sensor that is used as a MAP sensor for another car. So just buy the sensor and replace it. You can even get cheap ones on Amazon for $20+. Many have done it.

Gotcha, thanks for the info
I will probably grab a MAP sensor if my vacuum gets worse