Darek Posted June 29, 2012 Share Posted June 29, 2012 (edited) I need to flush brake fluid because it is black and probably is dirty. I found the procedure in BR-9 but I don't understand how to locate a brake fluid bleeder valve and how to release it (point 1 and 3 from below). Could you give me some instructions? Here is the procedure: 1. Connect a transparent vinyl tube to air bleeder valve. 2. Fully depress brake pedal several times. 3. With brake pedal depressed, open air bleeder valve to release air. 4. Close air bleeder valve. 5. Release brake pedal slowly. 6. Repeat steps 2. through 5. until clear brake fluid comes out of air bleeder valve. 7. Tighten air bleeder valve. Edited June 29, 2012 by Darek Link to comment Share on other sites More sharing options...
pathfounder Posted June 29, 2012 Share Posted June 29, 2012 Small nut on the back of each caliper or brake drum assembly. You have to do this 4 times, once per corner. Link to comment Share on other sites More sharing options...
ramdala Posted June 29, 2012 Share Posted June 29, 2012 Hi, I have changed my brake fluid some time ago when I was doing my SDF install. If you do it manually (like me), you need the help of a second person one on the pedal and other opening and closing bleeder valves and to have an eye to the fluid level on the reservoir because no air must enter to the system. Here is a pic of the bleeder with a tube on the top left side of the image. Link to comment Share on other sites More sharing options...
Camelfilter Posted July 2, 2012 Share Posted July 2, 2012 I've seen a home made one person bleeder kit online (maybe someone here pointed it out?) http://faculty.ccp.edu/faculty/dreed/campingart/jettatech/bleeder/index.htm Might be handy if you cant find a helper. Link to comment Share on other sites More sharing options...
Darek Posted July 2, 2012 Author Share Posted July 2, 2012 Thank you all for your answers. I have a helper - wife I am going to flush that liquid next month. Link to comment Share on other sites More sharing options...
Darek Posted July 10, 2012 Author Share Posted July 10, 2012 I bought 1 liter of brake fluid. Will it be enough to flush all fluid in brake lines? Link to comment Share on other sites More sharing options...
pathfounder Posted July 10, 2012 Share Posted July 10, 2012 I don't think it will be enough. Link to comment Share on other sites More sharing options...
Towncivilian Posted July 10, 2012 Share Posted July 10, 2012 I used a quart for my Pathfinder and I still had some left over. Be sure you follow the correct bleeding order: 1. Left rear brake2. Right rear brake3. Left front brake4. Right front brake Link to comment Share on other sites More sharing options...
ScottZ Posted July 13, 2012 Share Posted July 13, 2012 I used a quart for my Pathfinder and I still had some left over. Be sure you follow the correct bleeding order: 1. Left rear brake2. Right rear brake3. Left front brake4. Right front brake Shouldn't it go in this order? (Orientation should be as if you are sitting in the drivers seat) 1. Right rear brake <<< This wheel is farthest from the master cylinder.2. Left rear brake 3. Right front brake 4.Left front brake Link to comment Share on other sites More sharing options...
Towncivilian Posted July 13, 2012 Share Posted July 13, 2012 (edited) No. I pulled that bleeding order directly from the factory service manual. Page BR-9 Edited July 13, 2012 by Towncivilian Link to comment Share on other sites More sharing options...
ScottZ Posted July 13, 2012 Share Posted July 13, 2012 No. I pulled that bleeding order directly from the factory service manual. Page BR-9 OK. I thought you wanted to start farthest from the master and work your way closer. No Biggie. I flushed my brakes last month and the pedal feel much more solid. Age of old fluid was unknown. Link to comment Share on other sites More sharing options...
pathfounder Posted July 13, 2012 Share Posted July 13, 2012 OK. I thought you wanted to start farthest from the master and work your way closer. No Biggie. I flushed my brakes last month and the pedal feel much more solid. Age of old fluid was unknown. If you look at the brake lines, they all head all the way across the firewall and then make their way to the wheels, because then they can use more common parts with the right hand drive models. Link to comment Share on other sites More sharing options...
paoldschool Posted July 21, 2012 Share Posted July 21, 2012 The bleed order also has something to do with the ABS system. If your R50 has the load sensing valve on the rear brakes that should be done before either one of the rear wheels. I flushed my system after everything was apart to replace rear axle seals. It is amazing the difference new fluid makes. Link to comment Share on other sites More sharing options...
nunya Posted July 21, 2012 Share Posted July 21, 2012 OK. I thought you wanted to start farthest from the master and work your way closer. That's a general rule of thumb but what I unknown to many is that a LOT more cars than you think have specific brake bleed sequences your supposed to follow. The backwards sounding Pathfinder sequence is actually written as LR/RR/RF/LF in publications by brake companies and such (my OnDemand program on my shop computer sais it and a bleed sequence book Published through Wagner we have here at work too). Link to comment Share on other sites More sharing options...
Towncivilian Posted July 21, 2012 Share Posted July 21, 2012 (edited) If your R50 has the load sensing valve on the rear brakes that should be done before either one of the rear wheels. The 2003 and 2004 FSMs do not list the load sensing valve in the bleeding order. Edited July 21, 2012 by Towncivilian Link to comment Share on other sites More sharing options...
pathfounder Posted July 22, 2012 Share Posted July 22, 2012 I thought the load sensing valve was ditched after a few years. Link to comment Share on other sites More sharing options...
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