Pressure regulator leaking

[wiberforce]

My 750il is leaking from the hydraulic pressure regulator this is what it looks like http://www.rmeuropean.com/Part-Numbe..._10902E10.aspx

It's leaking from the bottem of the red plug piece on the top of the unit, any fixes/ideas?

[WaaD]

same problem here, but leak is small.

[wiberforce]

Mines big enough where it's starting to leak out I bottom of car just read to replace the top sensor but I'd rather wait and get the input of someone on these forums because that part is $30

[shogun]

usually it come out from the plastic around the pins, you have to replace this switch.
There are 2 of them

34331150922 ATE OEM $34.08
Brake Pressure Warning Switch; DS Regulator Sensor; Coarse Thread 1.5 Bar
Vertical mount at top of regulator. 1 per car

61311362977 ATE OEM $31.02
Brake Pressure Warning Switch; Fine Thread; 20 Bar
Mounts horizontally on side of DS regulator. 1 per car

prices from autohausaz.com

[wiberforce]

Thanks shogun after cleaning it up an getting a better look At it in daylight it's leaking from the pin for the top sensor (the side sensor seems to be fine for now) so I will replace the top, thanks for the help

[shogun]

One of my wrenching buddies just called me and told me on his 750 the Pentosin suddenly leaks a lot from the Brake Pressure Warning Switch; Fine Thread; 20 Bar 61311362977 which mounts horizontally on side of DS regulator, he had lost so much Pentosin that he removed the cpl. switch and used a fine thread plug to close the connection as a temporary fix, could drive to my place like this as that is just a warning switch. Luckily I had a new switch on stock and we installed that one.
Apparently the plastic around the pins of the electric connector gets brittle over the years and then the leaks gets bigger and bigger. So better replace them beforehand.
The 2 switches are not that expensive. Here are the ATE and other maker numbers
BMW 34331150922 = ATE 10.0522-4002
and the other one is
BMW 61311362977 = ERA 330416, VEMO V20-73-0004, ATE 10.0522-4005.1