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Rarely would my Model 3 nor Model X pop pads loose on the morning. Very rare event on all my cars, mostly because I'm aware of it and try to avoid setting up for it. Once in while is no big deal. To often and rotors will be a mess over time. It does not have to be freezing for the get stuck either.
That is normal. I get it on my X and my 3 if car is parked with brakes wet. Has nothing to do with temperature, happens when temps are over 70F.Same here, I after a cold night I get a bang when I first start moving forward.
That is normal. I get it on my X and my 3 if car is parked with brakes wet. Has nothing to do with temperature, happens when temps are over 70F.
Thanks for the replies and reassurance that this is NOT a problem!
So as I suspected, when park is depressed, there is an electric hydraulic pump that pressurizes the rear break pads? And when park is depressed longer it pressurizes at a higher pressure?
On the 3, the rear brake calipers themselves have a separate motor in there that I presume mechanically clamps the pads. If I had to guess, its a gear reduction that clamps the caliper mechanically with a spring. It's independent from the hydraulic system and built into the calipers, so it should be redundant between the two sides as well. It's only the rears.
It's totally possible in some extreme circumstances the pads can be damaged from this, but its unlikely. It's best to mostly dry the rotors and pads a bit before parking if you wash it, pretty much just by laying into the brakes a touch. But this isn't a great option in winter or very wet weather, so it kinda is what it is. Just a bang or a pop should be no worry. If you need to really lean into the throttle to get the car to move you might want to rock it the other direction first and see if that helps, I've had one time where I was practically stalling a car to get it to move after being washed with the parking brake set. This was on a car with separate drum brakes in the back for the parking brake, so the design is much more prone to seizing when wet.
on topic of brakes,
recently after a software update, e morning before goin out of my garage the brake pads seem to be stuck? as i back out garage a popping sound is present now but not before the update,
before if i put in neutral the car would roll out np, now it does not roll out and push on accelerator will pop brake pads? then roll happens...
Yo dude! Syracuse representing. I have the same issue starting last winter. I keep forgetting to tell the service center to lube my brakes when I take it in.When I park in my M3 in my garage on these cold nights the Parking Brake seems to stick in the morning, because when I put it in reverse and start to move there is a loud one time bang type noise like a stuck brake. Anybody else know what i am talking about?
Mark