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!