missing brake fluid - PeachParts Mercedes-Benz Forum

ajcbgray · #1 07-14-2008, 10:08 PM

So I recently (about a month ago) replaced a defective master cylinder with a rebuilt one, rebuild my rear calipers, new rear hoses and pads and rotors all around. Last week my brake light started flashing on while braking, so I checked and, sure enough the rear of the MC was low on fluid. I topped up and figured it was just from the pads bedding in or that I didn't fill it all the way up. Anyway, it was down to the min mark again today. I checked all four calipers, hoses, the rear hard line junction and around the MC and found no leaks. I'm assuming that when I pull the MC back I'm going to find plenty of fluid in the booster. So, when I suck the fluid out of the booster will I need to actually pull and clean the booster? Will the residual brake fluid cause any problem if I don't get it totally cleaned out? And most importantly, will brake cleaner f-up the booster?

thanks,
ben

Oracle12345 · #2 07-14-2008, 10:11 PM

Is your cabin area by where the master clyinder bolts on to the firewall wet?
Cleaning your booster would help

I do have a good one off the car im parting out

whunter · #3 07-14-2008, 11:57 PM

Brake:
Brake:

Have a great day

ajcbgray · #4 07-15-2008, 10:38 AM

No leakage from around the booster, but I just pulled the MC forward and used a mity vac to suck about 10oz of brake fluid from the booster! The MC has a lifetime warranty, so I'll have Advanced order me a replacement. Anyone have a good way to clean the inside of the booster without pulling it out?