Sunday, July 20, 2008

Brake Fluid and SBC


MB call for DOT 4+ brake fluid. What's that? Well, it's just DOT 4 with slightly higher performance specs. DOT 4 works just fine. Amsoil makes a good product. As for the Electronic braking system on the Benz, you can simply unplug the SBC unit (picture at right) when working on the brakes or use the detailed procedure outlined here to disable it. Flushing the brake fluid seems a bit silly as any water absorbed by the brake fluid will be either evenly distributed in the brake fluid through brownian motion or greater in the fluid reservoir. I always just use a turkey baster reserved JUST for brake fluid (we don't want any contamination!) and suck as much fluid out of the brake fluid reservoir as I can and replace it with fresh fluid about once a year.
Brake procedures are below

2 comments:

garage equipment said...

For reliable, consistent brake system operation, brake fluid must maintain a constant viscosity under a wide range of temperatures, including extreme cold. This is especially important in systems with an anti-lock braking system.

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