So I was driving today, curvy roads. Nothing major. All of a sudden my dsc and brake light come on. I thought maybe my pads were low and that was part of the sensor telling me.
I did shut the car off and go into a store. I came out and started the car, both lights went off, dsc was operating normally.
Can Some one shed some light on this for me? Or point me to a thread that pertains to this?
Thanks y'all.
People I owe beverages to, lokijibber
It needs a diagnostic scan to see what errors are present.
-Abel
- E36 328is ~210-220whp: Lots of Mods.
- 2000 Z3: Many Mods.
- 2003 VW Jetta TDI Manual 47-50mpg
- 1999 S52 Estoril M Coupe
- 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
- 2019 M2 Competition, self-tuned, 504whp
- 2016 Mini Cooper S
Since the lights went off, I'm assuming they didn't get stored? Or are they stored for a certain amount of key cycles?
People I owe beverages to, lokijibber
Codes usually get stored, so it should have a history of what happened. Usually a yaw sensor or a wheel speed sensor may have gone rogue.. but it can be other things, which is why a scan should be done first. Too many possibilities.
-Abel
- E36 328is ~210-220whp: Lots of Mods.
- 2000 Z3: Many Mods.
- 2003 VW Jetta TDI Manual 47-50mpg
- 1999 S52 Estoril M Coupe
- 2014 328d Wagon, self-tuned, 270hp/430ft-lbs
- 2019 M2 Competition, self-tuned, 504whp
- 2016 Mini Cooper S
I will see if my reader will show something.
Thanks for the responses.
Have you refilled the traction control fluid recently? 1999 and earlier models need ASC fluid, later models need DSC fluid (or compatible)
Is your rear end diff mount bad? I had some similar weird errors because my rear diff mount was dying.
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2013 135i MSport Cabrio DCT
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Had a similar problem on an e31 - mine was a siezing ABS pump. Turns on the DSC light at times and the ABS lights sometimes as well.
Happens more often the less you drive the car and if you drive it so that ABS does not activate. Hook the car up to a diagnostic system and cycle the pump as a cure/prevention.
set up INPA and ISTA to figure it out...use Abel's guide in the diagnostic thread.
I have never heard of special ASC/DSC fluids, as far as I know the system operates with regular brake fluid (DOT4) taken from the brake fluid system in the car.
Last edited by me77; 10-04-2018 at 02:33 PM.
The AC/DC fluid goes in the reservoir next to the blinker fluid.
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AC/DC is great stuff, compatible with ASC and DSC. Run the stuff high in Angus Young for the best traction control module protection possible
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I tried AC/DC fluid and was thunderstruck. The difference shook me all night long. I used to be in the red, but now I am back in black. If I keep this up, I’ll be on the highway to hell. Replacing the fluid is a dirty deed, but it’s done dirt cheap.
OP, you may have a bad yaw sensor under your feet or some dirty malfunctioning speed sensors at the wheels. A few years ago, I ruined the yaw sensor by steam cleaning my carpet. The symptom was the DSC and BRAKE lights would light up and stay on if I took a tight turn. They would cycle off at shut down and not light again unless I was cornering near the limit. The fix was a new sensor and a clearing of the codes. To check the codes, you neeed to use the socket under the hood, not the obdii port. Good luck.
Steve
'02 Z3 3.0i
It's definately a long way to the top, if you wanna rock and roll. Considering the social pages say I've got the biggest balls of all.
I guess if you want blood, you got it.
You guys are too much. Hopefully this weekend I will have time to see if my reader will see the fault.
I had similar issues with an X3. Turned out to be a bad alternator creating lower than normal voltage while driving. The battery was good and it had no issues starting but it triggered the warning lights from time to time.
I always drive with asc&abs off, so I wouldn’t know how it behaves with them on... but boy is it a joy to drive sideways on wet roads.
That turns off ASC, not ABS.
My car har has ABS and DSC disabled. Bought it like that
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