help with breaks!
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Joined: Aug 2011
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07 Mercedes s550 11 Cadillac Escalade
help with breaks!
Recently swapped over to the w211 8 pot AMG break calipers front and rear with all the correct parts needed.. now the big problem, i can't get rid of the air in the lines. I've done the research and searched, and still can't find out the problem. Ive manually bleed and pressure bleed the calipers and it gets really hard when i press the breaks.. but as soon as i start the car, press the breaks, the pedal falls to the floor and the "ESP Inoperative see owners manual" pops up.. keep in mind i never replaced or disconnected any abs wiring etc.. 
I've never had these problems with the stock breaks 
NOTE: I had these calipers rebuilt with new seals, bolts and powder coated as well..
I've never had these problems with the stock breaks NOTE: I had these calipers rebuilt with new seals, bolts and powder coated as well..
Last edited by hemmissey; Sep 18, 2016 at 11:48 AM.
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You know the answer.
At some point to minimize the amount of fluid you will need during your 24 hour non- stop bleeding you can start reusing it given you drain in a clean container. Tap with a rubber mallet the caliper when you bleed to dislodge air bubbles.
Btw, try bleeding the other calipers too. Air might have gone up to the abs unit and distributed to other wheel brake lines.
At some point to minimize the amount of fluid you will need during your 24 hour non- stop bleeding you can start reusing it given you drain in a clean container. Tap with a rubber mallet the caliper when you bleed to dislodge air bubbles.
Btw, try bleeding the other calipers too. Air might have gone up to the abs unit and distributed to other wheel brake lines.
Thread Starter
Member
Joined: Aug 2011
Posts: 171
Likes: 1
07 Mercedes s550 11 Cadillac Escalade
You know the answer.
At some point to minimize the amount of fluid you will need during your 24 hour non- stop bleeding you can start reusing it given you drain in a clean container. Tap with a rubber mallet the caliper when you bleed to dislodge air bubbles.
Btw, try bleeding the other calipers too. Air might have gone up to the abs unit and distributed to other wheel brake lines.
At some point to minimize the amount of fluid you will need during your 24 hour non- stop bleeding you can start reusing it given you drain in a clean container. Tap with a rubber mallet the caliper when you bleed to dislodge air bubbles.
Btw, try bleeding the other calipers too. Air might have gone up to the abs unit and distributed to other wheel brake lines.
Thread Starter
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Joined: Aug 2011
Posts: 171
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07 Mercedes s550 11 Cadillac Escalade
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2007 Mercedes S600
One other thing to consider, I know I've had to do this with several vehicles but I've never run into it with Mercedes, if the fluid runs too dry you have to bleed the ABS pump which can only be done with a dealer level scan tool. The problem is basically that air gets trapped in the ABS pump/module and doesn't come out until the pump is compressed, which doesn't happen when you're bleeding the brakes the old fashioned way. Just a thought.
Thread Starter
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Joined: Aug 2011
Posts: 171
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07 Mercedes s550 11 Cadillac Escalade
One other thing to consider, I know I've had to do this with several vehicles but I've never run into it with Mercedes, if the fluid runs too dry you have to bleed the ABS pump which can only be done with a dealer level scan tool. The problem is basically that air gets trapped in the ABS pump/module and doesn't come out until the pump is compressed, which doesn't happen when you're bleeding the brakes the old fashioned way. Just a thought.
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Thread Starter
Member
Joined: Aug 2011
Posts: 171
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07 Mercedes s550 11 Cadillac Escalade
unfortunately yes 😒 and all the bleeding I did wrongly... when car is off, after manual bleeding and fill up on reservoir, the brake pedal is stiff as rock. When car is on, when I press brakes half way down it's still stiff and hard, but when I floor the brakes the "ESP inoperative" sign comes on dash and brakes don't work?... 😖
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From: Illinois
S560/SL550/LS460/Q70L 5.6 AWD
I've recently had the dealer change the braking fluid on my CL600, it was a little bit over $100, so it is not that bad, I would take the car to them and let them do the job...
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if abs needs to be accessed via das and bled - you are looking at close to $300 for the job.
