ABS Modulator Failure Due to Dirty Brake Fluid on Mercedes-Benz E320

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.

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Average mileage: 143,563 (95,000–169,000)
12 model years affected: 1994, 1995, 1996, 1997, more1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
15 people reported this problem
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problem details
1998 Mercedes-Benz E320 166,691 mi,
second time brakes became really touchy then all four calipers lock up i had it towed home got in it about a month later and it drove fine now 4 months later same thing has anyone has this problem b4 is it the mastercylinder or what its like someone is pressing the pedal when i try to move it car will move but i have to give it alota gas and then i start to smell the pads burning up please someone help
Rare brakes lock up after approx. 15mins of driving. Cools off after an hour, drives again until next episode