So I’m about to take on my first bleeding of brake fluid on 15 RS.
From what I gathered so far I need one-man kit or vacuum canister to do it by myself.
I’m leaning toward one-man kit bottle with one way valve so I can attach the hose to bleeding nipple and pump the brake pedal without help.
Q1: do I need to bleed in certain sequence?
Q2: is rear reservoir for front and front reservoir for rear?
Q3: do I keep filling reservoir as I’m pumping the brake till new fluid starts to come out?
Q4: do front wheels need to be off?
Thank you I’m advance.
1. Always bleed the farthest wheel first, so probably left side front.
2. Yes
3. Fill it when it gets low, or siphon out some fluid first and fill up with fresh, so you dont pump as much old fluid out.
4. Helps and they are not hard to take off.
The problems with the one man kits is that once you crack the nipples, you can suck air back in as you release the pedal. The valve is after the threads so it doesnt do much.
The vacuum kits work by trying to suction out the fluid. I tried one of the bottle kits that was supposed to be hooked to a compressor to create suction, it sucked all right but not fluid. There are also the hand pump mityvac style bleeders, I cant say how well those work, maybe somebody else can chime in.
The most reliable way is a clear tube on the nipple and somebody to push down on the pedal and hold it till you say release. You open the nipple when there is pressure and close it off before the pedal comes up. On the fronts is pretty fast and easy to do. On the rear, much more of a pia in how you get to the nipple, at least on my RT. Maybe your RS is easier, on the RT the caliper is under the storage compartment.
There are also replacement nipples that have the check valve built in, I havent tried those, have heard pros and cons.
As for the ABS, yes you are supposed to use BUDS, but without you still are moving out most of the fluid. If you are just cycling out old fluid for new, probably not a big issue. If you have air in the system and the pedal is still spongy afterward, then you may need to bring it in.