Strange Brake Bleeding Problem
Posted: Fri Apr 22, 2016 2:39 am
We changed the brake light switch on our S2. While only a little fluid dripped out, I thought we should bleed the brakes since we opened up the system. I also noticed that the brake pedal was about 1/2 way down before the brake lights came on.
Because only a very small amount of fluid came out, I made the mistake of just going to the right front brake that was near the brake light switch. It bled nicely, a few pumps, some bubbles, then no bubbles. ah...nice. why not just check out the left front brake while I'm under here? So, went to left front brake. First pump, a little air, 2nd pump, a little air. 3rd pump, massive air, then nothing but air with every pump afterwards. Fluid level in still good in reservoir. WTH?
Ok, lets blame ourselves for being lazy and not starting at right rear (furthest from master cylinder). Decided to start over and bleed from there. Nothing but air. Tried using vacuum instead. Nothing but air. No lowering in reservoir. Pump method again. air.
(note - system worked fine prior to all our messing with it. our fault for touching it)
Any ideas? Later, we may try just bleeding the master.
Because only a very small amount of fluid came out, I made the mistake of just going to the right front brake that was near the brake light switch. It bled nicely, a few pumps, some bubbles, then no bubbles. ah...nice. why not just check out the left front brake while I'm under here? So, went to left front brake. First pump, a little air, 2nd pump, a little air. 3rd pump, massive air, then nothing but air with every pump afterwards. Fluid level in still good in reservoir. WTH?
Ok, lets blame ourselves for being lazy and not starting at right rear (furthest from master cylinder). Decided to start over and bleed from there. Nothing but air. Tried using vacuum instead. Nothing but air. No lowering in reservoir. Pump method again. air.
(note - system worked fine prior to all our messing with it. our fault for touching it)
Any ideas? Later, we may try just bleeding the master.