Mysterious BAS/ETS/ABS lights don’t want to go away..
Newbie
Joined: Sep 2006
Posts: 3
Likes: 0
cluster of lights remain on & will not shift from 1st
reading your concern for answers to my 2001 ml. sounds similiar. i would appreciate your insight and apologize for butting in. bas/esp/ets/abs/battery/brake wear/check engine & (red)brake lights all stay on. additionally, will not shift out of 1st gear. ran great prior to letting it sit for approx. 2 months in garage. i pulled all kinds of fuses and relays to see if bad. all ok. when restarting, all lights were out and shifted fine through all the gears. turned ml off and restarted later and back to the same problems as before. tried pulling same fuses and relays but this time it didn't work. i could really use some help. thank you very much!
Newbie
Joined: Sep 2006
Posts: 3
Likes: 0
2001 ML320 lights & shifter problem
Darkmann: you indicated the last case will lock up the shifter. is that a result of a bad esp control module or esp/bas control unit or are they the same? the lights stay on, (bas/esp, ets, abs, battery, brake worn,as well as, check engine & (red) brake light on the right side. will not shift out of 1st. switched the relay with one next to it, started and all lights were out and it shifted fine through all the gears. when i returned home, turned off ml and restarted, all lights came back on and would not shift out of 1st. took to dealer = abs pump but they did not give me any codes. they said pump runs fine but the internal computer is bad so sending wrong info. to pump and system. i would appreciate your direction. i can do basic repairs ( starters, brakes, hoses etc. oaktree stuff) but electric stumps and scares me. if switches and relays are all that is necessary - can do. if just changing out - can do but need to know what to change. please help!
Super Member
Joined: Dec 2001
Posts: 672
Likes: 0
From: Northern California
MBs
I had my 3 little lights coming on & off for a year now. did all the "DIY" thing that is, replace the brake switch, replace the relays and so on... but no luck. Tired of seeing that 3 little lights went to the dealer to have it diagnosed - BAM - BAM the culprit --- ABS pump. and the sad thing is that I got no more warranty. So far until now my ML runs sooooo gooood.
http://www.mercedesshop.com/shopforu...d.php?t=163247
Pictures:
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Newbie
Joined: Jan 2007
Posts: 1
Likes: 0
ML320 and SLK230
ML320 ABS Pump
I had a similar problem diagnosed as ABS pump failure which the garage advised would need a new pump. After lots of searching on the internet (in order to avoid the incredibly high cost of a new pump) I ended up shipping the pump AND control board to Florida from the UK - the specialist firm fixed what was an electrical fault on the control board and shipped it all back. Total cost was c$500 instead of $2000+..........! All worked fine - garage could not believe it!
Newbie
Joined: Apr 2007
Posts: 1
Likes: 0
identical problem on '97 e300
reading your concern for answers to my 2001 ml. sounds similiar. i would appreciate your insight and apologize for butting in. bas/esp/ets/abs/battery/brake wear/check engine & (red)brake lights all stay on. additionally, will not shift out of 1st gear. ran great prior to letting it sit for approx. 2 months in garage. i pulled all kinds of fuses and relays to see if bad. all ok. when restarting, all lights were out and shifted fine through all the gears. turned ml off and restarted later and back to the same problems as before. tried pulling same fuses and relays but this time it didn't work. i could really use some help. thank you very much!
Super Member
Joined: Nov 2001
Posts: 864
Likes: 1
ML
[
...switched the relay with one next to it, started and all lights were out and it shifted fine through all the gears. when i returned home, turned off ml and restarted, all lights came back on and would not shift out of 1st. took to dealer = abs pump but they did not give me any codes. they said pump runs fine but the internal computer is bad so sending wrong info. to pump and system. i would appreciate your direction. i can do basic repairs ( starters, brakes, hoses etc. oaktree stuff) but electric stumps and scares me. if switches and relays are all that is necessary - can do. if just changing out - can do but need to know what to change. please help!
Newbie
Joined: Apr 2007
Posts: 1
Likes: 0
Hi all,
New to this forum and new to the W163 world. I am from Greece (far away e?) and I own a 2000 ML320 with 50,000 miles on. I had my car serviced in an authorized MB dealer (as always do) and after couple of weeks the ABS,ETS,EBS warning leds came on, and then off, and on... and so on.. The car is driveable however low range and cruise control will not work as long as these warnings are on. I have scheduled an appointment to the dealers but after reading all these I will think about it again.. So here comes the request that will also serve other newcomers with similar problems..
a) Can someone summarize the likely causes of this problem (including fuses codes, etc)
b) Can we have a picture of the fuse box and where is located?
Thank you very much for any help.
New to this forum and new to the W163 world. I am from Greece (far away e?) and I own a 2000 ML320 with 50,000 miles on. I had my car serviced in an authorized MB dealer (as always do) and after couple of weeks the ABS,ETS,EBS warning leds came on, and then off, and on... and so on.. The car is driveable however low range and cruise control will not work as long as these warnings are on. I have scheduled an appointment to the dealers but after reading all these I will think about it again.. So here comes the request that will also serve other newcomers with similar problems..
a) Can someone summarize the likely causes of this problem (including fuses codes, etc)
b) Can we have a picture of the fuse box and where is located?
Thank you very much for any help.
Super Member
Joined: May 2005
Posts: 870
Likes: 1
From: East of I-287 South
01 ML55, 91 Supra Turbo, 05 Audi S4
Mine came on and stayed on after replacing the brake light switch, turns out it was the ABS Modulator pump,....Cost on pump $1600 but for $400 less from here: http://www.trademotion.com/memberser...&siteid=213951 Part no. (0044310412)-$1200.00
Seems like MB should have a recall on these pumps/problems as so many of us owners have reported the same issue...
Seems like MB should have a recall on these pumps/problems as so many of us owners have reported the same issue...
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Senior Member
Joined: Sep 2005
Posts: 251
Likes: 36
From: Melbourne, Australia
GLE 350D GLC 250D, Previous vehicles W204, W164, W163, W210 & W202
I had my 3 little lights coming on & off for a year now. did all the "DIY" thing that is, replace the brake switch, replace the relays and so on... but no luck. Tired of seeing that 3 little lights went to the dealer to have it diagnosed - BAM - BAM the culprit --- ABS pump. and the sad thing is that I got no more warranty. So far until now my ML runs sooooo gooood.
Almost a Member!
Joined: May 2007
Posts: 69
Likes: 1
currently drive the 83 300SD
Hi all,
New to this forum and new to the W163 world. I am from Greece (far away e?) and I own a 2000 ML320 with 50,000 miles on. I had my car serviced in an authorized MB dealer (as always do) and after couple of weeks the ABS,ETS,EBS warning leds came on, and then off, and on... and so on.. The car is driveable however low range and cruise control will not work as long as these warnings are on. I have scheduled an appointment to the dealers but after reading all these I will think about it again.. So here comes the request that will also serve other newcomers with similar problems..
a) Can someone summarize the likely causes of this problem (including fuses codes, etc)
b) Can we have a picture of the fuse box and where is located?
Thank you very much for any help.
New to this forum and new to the W163 world. I am from Greece (far away e?) and I own a 2000 ML320 with 50,000 miles on. I had my car serviced in an authorized MB dealer (as always do) and after couple of weeks the ABS,ETS,EBS warning leds came on, and then off, and on... and so on.. The car is driveable however low range and cruise control will not work as long as these warnings are on. I have scheduled an appointment to the dealers but after reading all these I will think about it again.. So here comes the request that will also serve other newcomers with similar problems..
a) Can someone summarize the likely causes of this problem (including fuses codes, etc)
b) Can we have a picture of the fuse box and where is located?
Thank you very much for any help.
Newbie
Joined: Mar 2010
Posts: 1
Likes: 0
w163 ml
BAS lights!!!
Had a mates car to look at the other day,this was a 2003 car with the integrated ABS/ESP module with no separate relay, he had bought it at an auction cheap, reason was the abs and bas lights started flashing after about 3 minutes of running or just leaving the key on, having the luxury of STAR it came up with no CAN comms to ABS module, we swapped the unit onto from my ML and it worked perfect on that car, the car had been around other garages as all of the CAN wiring had been cut into around the car.
After much diagnosis ,and looking on MBcircuit diagrams of the CAN network the fault was the trip computer above the mirror going down and pulling the CAN bus down so comms on the ABS ecu were first to go.Left the computer disconnected and everything now ok,lengthy diagnosis but a cheap fix, so try disconnecting that first!
After much diagnosis ,and looking on MBcircuit diagrams of the CAN network the fault was the trip computer above the mirror going down and pulling the CAN bus down so comms on the ABS ecu were first to go.Left the computer disconnected and everything now ok,lengthy diagnosis but a cheap fix, so try disconnecting that first!
Newbie
Joined: Jun 2015
Posts: 5
Likes: 0
CLK 230
Guys, could anyone share the P/N for that bloody K25 relay? I'm having the exact same issues as the OP, heat related ABS/ESP problems. Basically, except for summer, the systems work fine. As soon as the heat comes, the lights pop up.
Where exactly is that K25? I definitely need to have a look at it. Fingers x'ed it will solve my problem as well.
Cheers,
Gab
Where exactly is that K25? I definitely need to have a look at it. Fingers x'ed it will solve my problem as well.
Cheers,
Gab
Newbie
Joined: Jun 2015
Posts: 5
Likes: 0
CLK 230
Well, I think this is quite similar, I have had the same issues for the past 2 years, every summer (quite hot summer here) my ESP light goes on and stays on. As soon as the heat goes away, in autumn, the error goes off and stays off until next summer. Also, if I turn the climate control on and cool down the cabin, I've noticed the error takes longer to pop up. So pretty similar with what the OP was experiencing with his car. My car is a 2001 model, so I'm thinking there might be some similarities between the cars, maybe I'll eventually fix this annoying issue.
Super Member
Joined: May 2013
Posts: 504
Likes: 7
From: Harare, Zimbabwe
2003 ML55,2007 ML63
K25 relay on an Ml could be completely different from yours.
Why don't you try scanning the car for codes. Its good to read threads & have an idea, but each case is different. Getting the car scanned with a pro level scanner must be your first step to diagnosing your problem. Anytime you have the ESP light on means you will have stored codes in the ESP module & corresponding codes in others. Knowing these codes will be the answer to the issue, instead of guess work.
Why don't you try scanning the car for codes. Its good to read threads & have an idea, but each case is different. Getting the car scanned with a pro level scanner must be your first step to diagnosing your problem. Anytime you have the ESP light on means you will have stored codes in the ESP module & corresponding codes in others. Knowing these codes will be the answer to the issue, instead of guess work.
Newbie
Joined: Jun 2015
Posts: 5
Likes: 0
CLK 230
K25 relay on an Ml could be completely different from yours.
Why don't you try scanning the car for codes. Its good to read threads & have an idea, but each case is different. Getting the car scanned with a pro level scanner must be your first step to diagnosing your problem. Anytime you have the ESP light on means you will have stored codes in the ESP module & corresponding codes in others. Knowing these codes will be the answer to the issue, instead of guess work.
Why don't you try scanning the car for codes. Its good to read threads & have an idea, but each case is different. Getting the car scanned with a pro level scanner must be your first step to diagnosing your problem. Anytime you have the ESP light on means you will have stored codes in the ESP module & corresponding codes in others. Knowing these codes will be the answer to the issue, instead of guess work.
Super Member
Joined: May 2013
Posts: 504
Likes: 7
From: Harare, Zimbabwe
2003 ML55,2007 ML63
K25 Relay on the ML is A002 542 15 19. Hella# is 4rb 007 967-00.
I don't think it will be of any use to you.... Relays are different even on different year & model ML's........
Why don't you open your fuse box & check the chart. What exactly K25 relay is in your car...Do you even have a K25 relay? Check on the chart ABS relay. After locating it, the part# will be on top of it.
The ESP systems are very different on a CLK & ML's.
I don't think it will be of any use to you.... Relays are different even on different year & model ML's........
Why don't you open your fuse box & check the chart. What exactly K25 relay is in your car...Do you even have a K25 relay? Check on the chart ABS relay. After locating it, the part# will be on top of it.
The ESP systems are very different on a CLK & ML's.
MBWorld Fanatic!
Joined: Oct 2011
Posts: 7,107
Likes: 765
From: Bronx, N.Y.
2002 ML 320 & 2006 ML500
The K25 relay is not your problem. The problem is probably with the ebox fan that cools the ESP/Traction Control Module.
Go to your own forum and find its location and see if it has a small fan inside the box.
Go to your own forum and find its location and see if it has a small fan inside the box.
Newbie
Joined: Oct 2020
Posts: 1
Likes: 0
W163
One more notice
I just brought back my truck from the dealer after a B Service and some other major 100K tune up items last weekend.
Since getting it back, the BAS/ETS/ABS lights keep coming on (they never used to come on before – the brake switch has once been replaced a couple of years back to resolve a similar symptom).
This is what happens. In the morning at cold start they usually don’t come on for the 12 mile drive to work, but in the afternoon at lunch hour, start the truck and the lights will come on in less than 2 minutes of driving.
They will come on, on every start up for the rest of the day and the on the next day the same cycle repeats.
I already inspected the ABS relay in the fuse box, made sure the brake light bulbs are not blown, replaced the brake switch yesterday, as these are common causes of this problem. Everything seems fine. The brake lights even come on every time the brake paddle is depressed, but the mysterious lights don’t want to go off after lunch hour.
It almost seems like the afternoon temperature has something to do with the lights coming on. Only other anomaly I noticed is that as part of the B service, the brake fluid has been topped off a bit too much (way above the max. indicator)..is there something as topping off the fluid too much? Would that cause it?
Since getting it back, the BAS/ETS/ABS lights keep coming on (they never used to come on before – the brake switch has once been replaced a couple of years back to resolve a similar symptom).
This is what happens. In the morning at cold start they usually don’t come on for the 12 mile drive to work, but in the afternoon at lunch hour, start the truck and the lights will come on in less than 2 minutes of driving.
They will come on, on every start up for the rest of the day and the on the next day the same cycle repeats.
I already inspected the ABS relay in the fuse box, made sure the brake light bulbs are not blown, replaced the brake switch yesterday, as these are common causes of this problem. Everything seems fine. The brake lights even come on every time the brake paddle is depressed, but the mysterious lights don’t want to go off after lunch hour.
It almost seems like the afternoon temperature has something to do with the lights coming on. Only other anomaly I noticed is that as part of the B service, the brake fluid has been topped off a bit too much (way above the max. indicator)..is there something as topping off the fluid too much? Would that cause it?
anyway, as long as im driving alone, everything seems to b ok, but when ever i pick some one, to b precise, when ever tow persons come along, and after they get in and after i drive for lets say less than a min, the bas esp brake light turns on and starts to beeb constantly !!! Has it ever happened witb any of u ?!?!?
MBWorld Fanatic!
Joined: Nov 2015
Posts: 1,456
Likes: 140
From: Westcoast/Interior
02w163ML500 / 97w210E50AMG / 99w202C230k / 95w124500e-wip
i have the same problem too, but the weirdest thing now is that i've been watchin and waitin for it just to b really sure 😅
anyway, as long as im driving alone, everything seems to b ok, but when ever i pick some one, to b precise, when ever tow persons come along, and after they get in and after i drive for lets say less than a min, the bas esp brake light turns on and starts to beeb constantly !!! Has it ever happened witb any of u ?!?!?
anyway, as long as im driving alone, everything seems to b ok, but when ever i pick some one, to b precise, when ever tow persons come along, and after they get in and after i drive for lets say less than a min, the bas esp brake light turns on and starts to beeb constantly !!! Has it ever happened witb any of u ?!?!?
Plenty of discussions and solutions on this.
