Mercedes-Benz
SL500
16

ABS Modulator Failure Due to Dirty Brake Fluid on Mercedes-Benz SL500

Problem Description and Possible Solution

As brake fluid becomes dirty over time, it can cause a failure of the anti-lock brake system (ABS) modulator assembly. Our technicians recommend a complete brake system flush every two years to help prevent this issue.

Problem Data
RepairPal Verified
Average mileage: 47,333 (20,000–62,000)
13 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
16 people reported this problem
Comments
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I bought 1 2001 SL500 with 18000 miles on it. One problem I had was ABS/ESC light will come on intermittently. Only way to clear it was shut down the car and re start. I flushed the brake system hydraulic fluid once and the problem occurred less often. Flushed it again and the problem went away completely. Make sure you bleed the brake hydraulic fluid at least every two years to avoid this problem, I am doing it now every time I change oil.