ABS Modulator Failure Due to Dirty Brake Fluid on Mercedes-Benz 420SEL

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.

RepairPal Verified
Average mileage: (–)
2 model years affected: 1990, 1991
2 people reported this problem
0 people shared problem details
Related Items:
brake fluid full and no apparent leaks, brakes seem to be fine again. anyone know what cause mi...
what is coreect atf fluid for 420 sel and where does it get filled once drained
I recently sold my 420SEL to my sister who had a mechanic replace the brakes. Now the ABS ligh...
My ABS Light stays on all the time and my brakes have been changed. Why does the light stay on...
The timing chain and timing chain guides wear; they should be replaced every 100,000 miles.

Related Content