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380sl brake change nightmare

593 Views 1 Reply 2 Participants Last post by  khomer2, 
Gabriel Tew
Hey! I have recently bought a 1981 380sl and realized how bad the brakes were so I bought new ones from mercedes source (pads and rotors for the back and front) but after doing the back without a hitch really the front calipers were replaced aswell (not too big of an issue). however after this and bleeding them I am not getting brake pressure when I start my car, and my brake light is on. I suspected a master cylinder renewal might be my issue so I went ahead and got a new one and bled the system again to no avail. I get brake pressure when the car is off, and fluid flows but the brakes do not squeeze the rotors in the front but if I turn the car on I don’t even get pressure. just air through the travel of the brakes. please help asap!! I want to drive again :-(
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khomer2
Gabriel,

What procedure did you use when bleeding?

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help brake bleeding

This should be simple. I had spongy pedal and it would drop under pressure so I replaced the master cylinder. (this is something I've done plenty of times over the years) I bench bled the master. Worked as expected. Installed MC, tried releasing air through fittings. Still spongy, ok needs to...
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