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E36General discussion and technical help for (E36) 1992-1999 3 series cars. 318, 323, 325, 328.
A few weeks ago I started noticing a new noise in my car. It seems to come from righ in front of the drivers seat, under the steering column. The sound resembles what one would hear when presing into a plastic water bottle and releasing.... some sort of a tick almost. It is periodic: every five seconds or so I can hear it. It sounds like some valve is being opened and or closed, or maybe like when a big air buble makes it to the top of a body of water (example: when one farts under water). Furthermore, I can feel motion on my brake pedal whenever I hear the sound -- it is the only of the three pedals on which this happens. I can only hear the noise from inside the car - I have had no luck when I have tried to follow it with the hood open or when I get under the car. The noise comes and goes, but lately I have been hearing it more often, and it has also become louder. Somebody that heard me describe the noise suggested I may have to top off my brake fluid.
This morning the clicking began even before I started the engine. The clicking appeared after I depressed the brake pedal after turning the key to the "accesory" position (radio, A/C come on, etc., but car is still not running). I used the opportunity (no engine noise) to track the clicking. It seems to come from the structure pictured in the attached images. I felt the vibration that went along with the sound there also. Can someone please help me? What is this thing? I am very concerned because I don't know if I will lose my brakes due to whatever is causing this if it gets worse. Also, the cliking seems to disappear once the car has warmed up some, but I cannot say tht it is consistent.
the ABS controllers are basically called the "wheel speed sensors". I just got my system replaced awhile back and that don't look like it.
From the pictures shown: it looks like your wiring for your brake system/brake fluid sensor wire...
What I think: Your brake system relays or relay/fuses or fuse may be fried. When this happens you hear clicking from that area where the relays are. If you say it's the wiring there...then it may be a wire that connects the braking system in your car. I'm not sure if there is a warning light or check engine code for this.
What You should do next: run your check engine codes...and see what you get...