WSS Calibration
Thread Starter
Newbie
Joined: Jan 2021
Posts: 6
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ML350
WSS Calibration
Anyone know of a good independent shop that has the tools and knowledge to do a WSS calibration in the central Florida area. I have a 2009 ML350 (164) that I have an error code 9A14. Component WSS is incorrectly adjusted.
Thread Starter
Newbie
Joined: Jan 2021
Posts: 6
Likes: 0
ML350
Thanks Maj.
Just a little history on how I got here.
A few weeks ago I replaced the battery. I think I must have caused a problem with the WSS then. After replacing the battery I got the SRS fault. I checked with my scanner and found a fault code 9A07 B48/14 right rear sensor has an open circuit in the wiring. I thought I might have cut a wire moving the seat up and forward to take out the battery. I looked and looked but could not see any problem. I decided to take it to the MB dealership. They did a scan and told me that they would have to replace the the seat base frame. Cost $3400.00. I told them they should look for a open circuit to the right rear sensor B48/14. And if needed replace the sensor and re-calibrate the WSS. They told me that, that is not what MB recommends. I told them that they where nuts. That they should be at least able to replace the sensor and re-calibrate the WSS. He asked me give him a few minutes he would check with their parts manager. Later he told me that they could do that for $1400.00 with no guarantee that it would work. At that point I paid for my scan and told them I could not trust anything they said.
the next day I decided to look for an open circuit to B48/14. I unbolted the seat and tried pushing on all connections and looked for any wires that might have been damaged. No luck. I put the seat back and did another scan. I no longer have the open circuit error codes. Now just the code saying the WSS is incorrectly adjusted.
So I think I might need to find someone trustworthy with the right tools and knowledge to do the job.
Just a little history on how I got here.
A few weeks ago I replaced the battery. I think I must have caused a problem with the WSS then. After replacing the battery I got the SRS fault. I checked with my scanner and found a fault code 9A07 B48/14 right rear sensor has an open circuit in the wiring. I thought I might have cut a wire moving the seat up and forward to take out the battery. I looked and looked but could not see any problem. I decided to take it to the MB dealership. They did a scan and told me that they would have to replace the the seat base frame. Cost $3400.00. I told them they should look for a open circuit to the right rear sensor B48/14. And if needed replace the sensor and re-calibrate the WSS. They told me that, that is not what MB recommends. I told them that they where nuts. That they should be at least able to replace the sensor and re-calibrate the WSS. He asked me give him a few minutes he would check with their parts manager. Later he told me that they could do that for $1400.00 with no guarantee that it would work. At that point I paid for my scan and told them I could not trust anything they said.
the next day I decided to look for an open circuit to B48/14. I unbolted the seat and tried pushing on all connections and looked for any wires that might have been damaged. No luck. I put the seat back and did another scan. I no longer have the open circuit error codes. Now just the code saying the WSS is incorrectly adjusted.
So I think I might need to find someone trustworthy with the right tools and knowledge to do the job.
Last edited by Domenick156; Feb 2, 2021 at 03:54 PM.
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MBWorld Fanatic!
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From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
First you got 9A14 and then you got 9A07, please explain.
Did you remove the front seat to replace the battery?
Did you remove the front seat to replace the battery?
Last edited by Maj. Dundee; Feb 3, 2021 at 04:06 PM.
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Thread Starter
Newbie
Joined: Jan 2021
Posts: 6
Likes: 0
ML350
First I got 9A07. This after replacing the battery. I did not take the seat out to do this. The dealer may have cleared that code. I did not do a scan again until after I unbolted the seat and looked again for a bad connection. At this point I did a scan and now have the 9A14 code.
Senior Member
Joined: Aug 2017
Posts: 396
Likes: 11
From: Ontario, Canada
2006 ML500, 2008 ML350
First I got 9A07. This after replacing the battery. I did not take the seat out to do this. The dealer may have cleared that code. I did not do a scan again until after I unbolted the seat and looked again for a bad connection. At this point I did a scan and now have the 9A14 code.
