I hear a hissing

2004 BMW X5
39,900 MILES • V8 • 4WD • AUTOMATIC
Avatar
GRMBOB
  • MEMBER
  • 1 POST
i have fit new pads now I hear a hissing from under the dash.
Dec 20, 2007 at 3:47 PM
Advertisement
Avatar
KASEKENNY
  • ✓ASE Certified Mechanic
  • 18,907 POSTS
  • ASE Certified Mechanic
This does sound like a brake booster issue so below is the info for the process from the manual. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed. Please let us know if you have other questions. Thanks
Images (Click to enlarge)
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Professional Diagram for 2CarPros Members
Click here to log in and view diagram.
Apr 14, 2021 at 1:55 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.