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Old 09-10-2001, 12:00 PM
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300 e brakes get spongy

my 1986 300 e after driving for a while, the brakes get very spongy, i have to pump them to get the car to stop. i have replaced the master cylinder and the pads are fine and the problem still exists.
is it a problem with the abs or a vaccum. any help is appreciated.
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Old 09-10-2001, 12:06 PM
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Join Date: Jan 2000
Location: New Bedford, MA USA
Posts: 1,583
Do you hear any funny noises when applying the brakes (such as the ABS motor or valves operating). If not, then you may have air in the master cyllinder or lines. If it gets "spongy" after driving a while, at what speeds do you get concerned. If low speed is the problem, I would bet on the ABS kicking in (you should hear and feel it if that is the case).
Jeff Lawrence
1989 300e
2000 Dodge Grand Caravan SE
No matter what you fix, there will always be something else to fix..
"Warranty" is just another way of postponing the inevitable.
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Old 09-10-2001, 12:09 PM
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Join Date: Jul 2001
Location: Western Michigan
Posts: 1,080
When was the last time you flushed the brake fluid?

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Old 09-10-2001, 12:22 PM
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Join Date: Dec 2000
Location: Northern New Jersey
Posts: 148
If the brake fluid is more than 1 year old, change this first.
98 E430(sport), 99 ML 320 (sold) , 05 C 230(sport) Mark
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