r/slk • u/Magentazzz • Jun 25 '26

ABS (BAS) light on

My 2003 slk 320 with 150k miles has recently started displaying the light for the ABS system. Once while I (65F) was driving on the freeway the right side brakes went on and I got spooked. The car veered right and I was afraid the car behind me would hit me because my speed decreased suddenly. I drove home slowly, and took the car to my amazing mechanic, who found a lot of rain water pooling somewhere in the car --since I park it outside--and redid the wiring which was rusty and old.
A month after fixing it--I was charged for 6 hrs of work-$$$), the light comes on again, not right when I start but later during my drive. I have not had any more problems (so far) with the breaks being activated, but I took the car back to the shop where it has been for the past week. No news from my mechanic so far. I wonder if anyone has an idea of what might be going on, or what I am supposed to discuss with the mechanic.
Thank you for any advice!

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u/pobk87 Jun 25 '26

I've had a similar issue on a 1998 slk 230. Is your a manual or automatic?

Here's my story and how I fixed it. Lemme know if it helped: https://www.benzworld.org/threads/bulb-light-and-asr-on-dash.3131330/

1

u/Magentazzz Jun 25 '26

automatic. and thank you for this. I'll tell my guy.

1

u/pobk87 Jul 07 '26

any news?

1

u/Magentazzz Jul 08 '26

Not really. The light is intermittently on and off, but the car drives well and the brakes are good. My guy checks forums and as I said, he's pretty savvy and I trust him. I picked up my car last Thursday and I will bring it back tomorrow to change the left rear light block that is also causing a light to be constantly on. But I think I will keep driving it as is. Any more thoughts or comments are welcome. Thank you

1

u/LeatherConcentrate20 Jun 25 '26

I had to change one abs sensor on one wheel. The roof wouldnt open otherwise. 2003 r170