ABS/ESP/Distronic/Parktronic warnings after start up - no codes?
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Mercedes Benz S600
N47/5 = ESP control unit, something to ponder: https://www.benzworld.org/threads/ab...-mine.2906682/
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Mercedes Benz S600
Well, also saving the $500+ parts markup the dealer would want to charge me as well, but you bring up a good point that it is risky.
Haven't removed/re-seated it yet, but want to test the power levels as I keep seeing an "under voltage" error in the codes. Perhaps a bad ground as well (there's a ground wire to the body right by the module too I want to take off, clean, and replace).
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From: Omaha, NE
2007 S600
Well, also saving the $500+ parts markup the dealer would want to charge me as well, but you bring up a good point that it is risky.
Haven't removed/re-seated it yet, but want to test the power levels as I keep seeing an "under voltage" error in the codes. Perhaps a bad ground as well (there's a ground wire to the body right by the module too I want to take off, clean, and replace).
Haven't removed/re-seated it yet, but want to test the power levels as I keep seeing an "under voltage" error in the codes. Perhaps a bad ground as well (there's a ground wire to the body right by the module too I want to take off, clean, and replace).
I saw an interesting post yesterday in which a guy spent several thousand dollars in repairs before someone finally discovered a bad voltage regulator.
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Mercedes Benz S600
Checking and cleaning the ground strap connection would be a good idea. It costs nothing, and there's really no down side to doing it.
I saw an interesting post yesterday in which a guy spent several thousand dollars in repairs before someone finally discovered a bad voltage regulator.
I saw an interesting post yesterday in which a guy spent several thousand dollars in repairs before someone finally discovered a bad voltage regulator.
I removed the massive "plug" and sprayed both it and there it goes with electrical contact cleaner
I reseated the plug
Error persists.
But... here's something odd. I ran a voltmeter to what I assume are the power inputs (two, thick red wires) at the top of the harness.
With the engine running, the one on the pass side gives 14v (good!). The one on the driver side is 0v (bad???). Anyone know if these are indeed power wires both? If these should both be supplying power, then this jives with the code I saw of "under voltage" for the module itself, right?
Last edited by lionsfan54; Sep 9, 2019 at 09:22 AM.
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From: Omaha, NE
2007 S600
Without a wiring diagram (and probably more knowledge than that), it's a guessing game. You may see different results depending on whether the ignition is on or off, engine running or not, etc.
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Mercedes Benz S600
I tweaked my post. All results were with the engine running. Hoping someone on here has a wiring diagram!
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S500
Got the codes read... sure enough "N47-5" all over the place. That's the ABS control module code. Thing is... it keeps saying "undervoltage" in the code reader. So, maybe it's just a loose power or ground line? I'm going to test them all and also clean what I can, otherwise a new module is coming my way.
Thought I read somewhere that you can send them out for rebuild/repair?
Thought I read somewhere that you can send them out for rebuild/repair?
the original fault is a DIY repair at home... on early ABS modules they even added some secret gunge to help one link wire from the multiplug to the circuit board ensure it corroded to failure in exactly the right length of time that no one suspected they did it on purpose. you can fix these with a paper clip and a soldiering iron. the second failure is the brushes in the ESP motor (like a baby wiper motor on the ABS unit), they made sure the brush guides where made just a tad too tight so after a few years the carbon build up causes the pump to fail... a particular specialty on BMW's... in fact the dealer software has a special mode to run the pump to failure when they get one in that doesn't register as have its bi annual fluid change.... of course the innocent ones will think I'm mistaken...
loads of shops offer unlimited warranty once they've removed the designed in manu faults....
if no comms unbolt the black bit, leaving the rest of the brake lines and aluminium valve block untouched, pop open the cover and repair the broken / corroded wire
Last edited by BOTUS; Sep 28, 2019 at 12:38 PM.
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Thread Starter
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Mercedes Benz S600
bit surprised this isn't better understood your side of the pond. This is an almost everyday error on UK cars for more than 15 years, every single manufacturer designs these to fail. Then when the invented ESP they got to add in another failure mode. As soon as the original fault occurs it looses comms with the rest of the car (alongside all the faults already listed you should get cruise control and the sat nav play up)
the original fault is a DIY repair at home... on early ABS modules they even added some secret gunge to help one link wire from the multiplug to the circuit board ensure it corroded to failure in exactly the right length of time that no one suspected they did it on purpose. you can fix these with a paper clip and a soldiering iron. the second failure is the brushes in the ESP motor (like a baby wiper motor on the ABS unit), they made sure the brush guides where made just a tad too tight so after a few years the carbon build up causes the pump to fail... a particular specialty on BMW's... in fact the dealer software has a special mode to run the pump to failure when they get one in that doesn't register as have its bi annual fluid change.... of course the innocent ones will think I'm mistaken...
loads of shops offer unlimited warranty once they've removed the designed in manu faults....
if no comms unbolt the black bit, leaving the rest of the brake lines and aluminium valve block untouched, pop open the cover and repair the broken / corroded wire
the original fault is a DIY repair at home... on early ABS modules they even added some secret gunge to help one link wire from the multiplug to the circuit board ensure it corroded to failure in exactly the right length of time that no one suspected they did it on purpose. you can fix these with a paper clip and a soldiering iron. the second failure is the brushes in the ESP motor (like a baby wiper motor on the ABS unit), they made sure the brush guides where made just a tad too tight so after a few years the carbon build up causes the pump to fail... a particular specialty on BMW's... in fact the dealer software has a special mode to run the pump to failure when they get one in that doesn't register as have its bi annual fluid change.... of course the innocent ones will think I'm mistaken...
loads of shops offer unlimited warranty once they've removed the designed in manu faults....
if no comms unbolt the black bit, leaving the rest of the brake lines and aluminium valve block untouched, pop open the cover and repair the broken / corroded wire
thanks
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S500
its so common over hear many fix it at home...
the other faults are mainly dry joints on the board and or link wires that fell off
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Mercedes Benz S600
its so common over hear many fix it at home...
https://www.youtube.com/watch?v=6m2H-nC0CqE
the other faults are mainly dry joints on the board and or link wires that fell off
https://www.youtube.com/watch?v=6m2H-nC0CqE
the other faults are mainly dry joints on the board and or link wires that fell off
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2007 S550 4Matic 2013 S550 Base
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Mercedes Benz S600
Have you seen this thread? https://mbworld.org/forums/s-class-w...lved-mine.html
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From: MN, USA
SL550
ABS problem... COLD ??
just to run something by you. what were the temps when this ABS popped up on your cluster screen?
I've never had any issues with it but last night it was cold night - about 15F (I'm located in MN).
I started a car (mine is 07 SL550) this morning and everything seemed fine but about 300ft into the drive cluster lights up like a Christmas tree.
ABS, STOP, something not working.
scared the crap out of me because when I stepped on the brakes it didn't feel like the car is slowing down.
I pulled over and felt the same thing as one of the earlier posts that wheel feels like it's hard to turn.
anyways, I turned the car off and back on, all the lights came back on right away but I let the car run for about 5 minutes to warm up.
turned the car off and back on and everything seemed fine.
this tells me it has something to do with very COLD environment contributing to this and was wondering if any of you are experiencing this in cold weather ?
I do have a STAR system so I can definitely look for codes. I am sure it will happen again.
I've never had any issues with it but last night it was cold night - about 15F (I'm located in MN).
I started a car (mine is 07 SL550) this morning and everything seemed fine but about 300ft into the drive cluster lights up like a Christmas tree.
ABS, STOP, something not working.
scared the crap out of me because when I stepped on the brakes it didn't feel like the car is slowing down.
I pulled over and felt the same thing as one of the earlier posts that wheel feels like it's hard to turn.
anyways, I turned the car off and back on, all the lights came back on right away but I let the car run for about 5 minutes to warm up.
turned the car off and back on and everything seemed fine.
this tells me it has something to do with very COLD environment contributing to this and was wondering if any of you are experiencing this in cold weather ?
I do have a STAR system so I can definitely look for codes. I am sure it will happen again.
Thread Starter
Senior Member
Joined: Nov 2017
Posts: 389
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Mercedes Benz S600
just to run something by you. what were the temps when this ABS popped up on your cluster screen?
I've never had any issues with it but last night it was cold night - about 15F (I'm located in MN).
I started a car (mine is 07 SL550) this morning and everything seemed fine but about 300ft into the drive cluster lights up like a Christmas tree.
ABS, STOP, something not working.
scared the crap out of me because when I stepped on the brakes it didn't feel like the car is slowing down.
I pulled over and felt the same thing as one of the earlier posts that wheel feels like it's hard to turn.
anyways, I turned the car off and back on, all the lights came back on right away but I let the car run for about 5 minutes to warm up.
turned the car off and back on and everything seemed fine.
this tells me it has something to do with very COLD environment contributing to this and was wondering if any of you are experiencing this in cold weather ?
I do have a STAR system so I can definitely look for codes. I am sure it will happen again.
I've never had any issues with it but last night it was cold night - about 15F (I'm located in MN).
I started a car (mine is 07 SL550) this morning and everything seemed fine but about 300ft into the drive cluster lights up like a Christmas tree.
ABS, STOP, something not working.
scared the crap out of me because when I stepped on the brakes it didn't feel like the car is slowing down.
I pulled over and felt the same thing as one of the earlier posts that wheel feels like it's hard to turn.
anyways, I turned the car off and back on, all the lights came back on right away but I let the car run for about 5 minutes to warm up.
turned the car off and back on and everything seemed fine.
this tells me it has something to do with very COLD environment contributing to this and was wondering if any of you are experiencing this in cold weather ?
I do have a STAR system so I can definitely look for codes. I am sure it will happen again.
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Joined: Apr 2019
Posts: 63
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From: MN, USA
SL550
I will have to check on that. I have all the service records for the vehicle so I need to find the document and see if/when it was done last. It has about 50k miles on it so I don’t know if that would be something within regular maintenance within that range.
Junior Member
Joined: Apr 2019
Posts: 63
Likes: 11
From: MN, USA
SL550
brake fluid was changed
is the ABS fluid something that needs to be frequently flushed / changed
