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      08-26-2013, 03:33 PM   #4
surlynkid
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Drives: 2013 E92 M3
Join Date: Apr 2012
Location: League City, TX

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[QUOTE=radiantm3;14563103]

Overflowing Brake Fluid when Changing Pads

A few months ago I put on brand new pads which meant the calipers had to be opened up quite a bit to fit back on the rotors. I didn't bother checking the level of my brake fluid in the reservoir and it ended up overflowing. I wiped it clean and thought everything was fine, but about a month later, my car started going into limp mode because the brake fluid fried a sensor.

QUOTE]

common mistake home mechanics make all the time. you top off the brake fluid as it drops when the pads wear and then put new pads in and overflow it. it is an issue on pretty much all cars. i typically use a turkey baster to remove some before and as i do each caliper to avoid that. the only exception i have seen was a 2007 acura TL type-s with front brembos. the FSM said I had to open the bleeder to let the fluid out when i pushed the pistons back, because pushing fluid backward was not good for their ABS system. odd, but I followed the manual.
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