I just replaced the front calipers on my 123. I bought a pair of fully loaded ones from here. They came with new sensors which I installed properly (AFAIK). To bleed the brakes I used a thing called an eezbleed, a very poor man's pressure bleeding system. I bled all four calipers so as to flush the entire system. I took the car out for a spin to try and seat the pads. The brakes felt terrible, low pedal, lots of pulsation which was to be expected since the rotors were rusted from sitting for a couple of months. I brought the car up to 40 or so, hit the brakes firmly and did this a few times. The pedal still feels like crap and now the brake wear indicator lamp is lit. Parked with the engine running and pressing on the brake pedal it will slowly sink. The brakes are acting like there's air in them. Is there some shortcoming regarding the pressure bleed method? The fluid isn't dropping in the reservoir. What else might make the wear indicator lamp light up? The rotors aren't in the best condition, but they don't appear too thin and there not a big ridge on the outer edge like they get as they wear out. Any ideas what is happening here? Could I have bad re-builds? If I were loosing fluid I'd see it in the wheels right?
Can't believe I have to write in asking about a simple brake job. Very frustrating after two days in 90 degree sun :-(