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Brake peddle going down after stop ?

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Old 05-16-2017, 05:23 AM
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C300 W205
Brake peddle going down after stop ?

2016 C300 - 2 weeks new

Not always but many times, probably 1 out of 5 times after coming to a full stop almost immediately without applying any addition foot pressure the brake peddle will lower another 3 inches in a smooth and controlled motion. The brakes hold and do not have any other indication of a problem except for this moving / softening motion. Any definitive reason this is happening or should I have the Dealer check it?

Thanks in advance for any information.
Old 05-16-2017, 05:38 AM
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C300h Bluetec
When applying the parking break my foot break will dip slightly. But not 3 inches.
Old 05-16-2017, 07:57 AM
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CLS
Christ, don't rely on this forum! Resolve all doubt in favor of an inspection, sooner rather than later.
Old 05-16-2017, 09:44 AM
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2016 GLC300 Dakota Brown on Espresso Brown Leather, 2014 C250 Sport Diamond Silver
Get the dealer to check it
Old 05-16-2017, 10:32 AM
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2018 C350Te Wagon
Originally Posted by don w
2016 C300 - 2 weeks new

Not always but many times, probably 1 out of 5 times after coming to a full stop almost immediately without applying any addition foot pressure the brake peddle will lower another 3 inches in a smooth and controlled motion. The brakes hold and do not have any other indication of a problem except for this moving / softening motion. Any definitive reason this is happening or should I have the Dealer check it?

Thanks in advance for any information.
Dont think auto hold could have something to do with it?
Old 05-16-2017, 12:33 PM
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2011 E550
Same thing happens to my 2011 w212 after I initiate the hold function, but happens very rarely.

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