im having a spongy brake pedal. she still brakes fine but goes down. ive replaced the servo, the master brake cylinder is from a urs4 (same partnumber) , all pipes checked, all calipers revised.im thinking the air keeps getting stuck behind the abs. the car also has been bleeded manually and eventuallly with a machine. it was a lot better but still having a pedal that goes down. when i put abs on or off it seems to feel better just a tad. can the S2 or 200 abs be manually controlled so the air gets out or is there another way? im at my wits end here. air stays stuck.
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Pressure bleed.RS2'd 93 UrS4 5 spd sedan
94 UrS4 V8 6 spd manual avant -
Check for a sticking caliper too."Nulla tenaci invia est via"Comment
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what do you mean with "goes down"? that if you keep pressing the pedal with constant force, it goes all the way to the floor? that might indicate a leak of some sort
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constant force brake pedal stays where it is but it feels like when i press i have to slightly press the pedal harder each time to have the same braking power. tje car has been pressure bled with the machine. perhaps some air seeped back in. i saw some fluid at a return line from the hydraulic servo. i tightened it some more. i think i have to check for leaks.Comment
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