2011 s65 abc Malfunction

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Mar 30, 2019 | 01:39 AM
  #1  
My shop just told me I need a new abc pump for the 2011 s65 I was wondering how much would it cost since I’m sure you guys had similar issues . Thanks
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Mar 30, 2019 | 04:55 PM
  #2  
Read this

The article is for the W220, but the ABC systems are conceptually the same, just different specific components and locations.

The pump is almost never the culprit, unless the system has been allowed to run dry. A shop checking the system or codes may assume the pump is bad if they see low pressure readings, but it's not the pump's actual job to maintain pressure during high ABC activity. That moment-to-moment demand is met by the accumulators, and if those are bad, pressure will drop during use. Popped lines, if you have any, are a sure sign of bad accumulators.

That said, if the system has been allowed to run dry, then the pump will need to be replaced. They are not cheap, but rebuilts are out there. Do some Googling, but replace the accumulators first (MUCH cheaper) and see how it goes from there.
Reply 0
Mar 30, 2019 | 05:16 PM
  #3  
Thann you so much

Quote: Read this

The article is for the W220, but the ABC systems are conceptually the same, just different specific components and locations.

The pump is almost never the culprit, unless the system has been allowed to run dry. A shop checking the system or codes may assume the pump is bad if they see low pressure readings, but it's not the pump's actual job to maintain pressure during high ABC activity. That moment-to-moment demand is met by the accumulators, and if those are bad, pressure will drop during usePopped lines, if you have any, are a sure sign of bad accumulators.

That said, if the system has been allowed to run fry, then the pump will need to be replaced. They are not cheap, but rebuilts are out there. Do some Googling, but replace the accumulators first (MUCH cheaper) and see how it goes from there.
Reply 0
Mar 30, 2019 | 08:36 PM
  #4  
Start with fresh fluid throughout and filter.

Dark smelly fluid is a bad sign.

Look at the filter in bright light to see what is in it.
Reply 0
Mar 30, 2019 | 10:27 PM
  #5  
Will try that first 🙏🏼🙏🏼🙏🏼
Quote: Start with fresh fluid throughout and filter.

Dark smelly fluid is a bad sign.

Look at the filter in bright light to see what is in it.
Reply 0
Apr 3, 2019 | 03:09 AM
  #6  
Just got an estimate to replace the abc pump
My shop just called me saying I need a new abc pump and some high pressure hoses the estimate was $3k , is that reasonable?
Reply 0
Apr 3, 2019 | 09:59 AM
  #7  
Have the accumulators been replaced? Do that first, THEN see if it still needs a pump. Blown lines are a STRONG indicator of failed or weak accumulators. Do NOT go through a pump change until those are done. Seriously.

As for the pricing, the pump is expensive, and that is probably about right. You should be able to get the main accumulators done for 500-700 bucks, including labor. I ordered mine for about 150 each and replaced them myself.
Reply 0
Apr 3, 2019 | 04:16 PM
  #8  
You are right he just told me 2 accumulaters are also bad which he is going to replace first crossing my fingers bro lol

Quote: Have the accumulators been replaced? Do that first, THEN see if it still needs a pump. Blown lines are a STRONG indicator of failed or weak accumulators. Do NOT go through a pump change until those are done. Seriously.

As for the pricing, the pump is expensive, and that is probably about right. You should be able to get the main accumulators done for 500-700 bucks, including labor. I ordered mine for about 150 each and replaced them myself.
Reply 0

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