Brake failure - the Mach-E is not reacting to the brake pedal

[FB Sommer]

Have anybody experienced that the brakes has not worked?

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[Mach-Lee]

Please explain in more detail what happened.

 

[FB Sommer]

I have not experienced it myself, but many post there brake failure here in Denmark.
I have seen 69 rappoting their problems and TGET claim that Ford Can not find a problem.
This is not very Nice so I wunder if you have the same problems in US.
The problem is that the brakes do not work when the brake pedal id pressed!

 

[Mach-Lee]

Nope, I’m not aware of any brake failure incidents in the USA short of total 12V electrical failure which is extremely rare.

There is a mechanical failsafe at the very end of pedal travel. If the brakes suddenly don’t work, you need to press the pedal AS HARD AS YOU CAN (>50 kgf) to use the mechanical override.

I assume you guys know what ABS feels like so it’s not that right?

 

[FB Sommer]

Thank you, I will remember that.

Have you tried the electrical emergency handbrake?
I seems also to be a possibility. To ude that in case of a brake failure.

 

[Mach-Lee]

Thank you, I will remember that.

Have you tried the electrical emergency handbrake?
I seems also to be a possibility. To ude that in case of a brake failure.

Yes, that will use the same ABS brake system however. If there’s an electrical or brake unit failure it won’t work. So it’s best to mash the pedal hard.

 

[Murse-In-Airy]

My experience, because the friction brakes aren’t used at speeds that prevent corrosion, if I don’t force them to clean themselves for a couple weeks, braking action is very weak for the first 200ft of a hard stop. A second acceleration and braking returns stopping distance to normal. So no failure, but certainly a degradation due to corrosion.

 

[FB Sommer]

Ok, I try to use the brakes for a Hart braking to get the rust OFF

 

[steve.panse]

My experience, because the friction brakes aren’t used at speeds that prevent corrosion, if I don’t force them to clean themselves for a couple weeks, braking action is very weak for the first 200ft of a hard stop. A second acceleration and braking returns stopping distance to normal. So no failure, but certainly a degradation due to corrosion.

I’m confused by people saying this…the car transitions to the brake calipers at the end of every stop and in reverse...should be enough to wipe off the surface corrosion after a few normal low speed stops. If it’s taking you 200 ft on a hard stop either you started at 90 MPH or something’s wrong with your car.

 

[JohnFoxeSheets]

I’m confused by people saying this…the car transitions to the brake calipers at the end of every stop and in reverse...should be enough to wipe off the surface corrosion after a few normal low speed stops. If it’s taking you 200 ft on a hard stop either you started at 90 MPH or something’s wrong with your car.

Weather and road conditions in upstate NY are rather different compared to those in FL. That may account for the differing experiences.

 

[generaltso]

If it’s taking you 200 ft on a hard stop either you started at 90 MPH or something’s wrong with your car.

Or it might just mean you don’t live in Florida.

 

[AKgrampy]

Nope, I’m not aware of any brake failure incidents in the USA short of total 12V electrical failure which is extremely rare.

There is a mechanical failsafe at the very end of pedal travel. If the brakes suddenly don’t work, you need to press the pedal AS HARD AS YOU CAN (>50 kgf) to use the mechanical override.

I assume you guys know what ABS feels like so it’s not that right?

There was another post on this issue and if I remember correctly the complaint is their brakes failed after getting wet. I may be mis-remembering but it was about a week ago.

Here: https://www.macheforum.com/site/threads/brake-issues.33865/

 

[AliRafiee]

I’m confused by people saying this…the car transitions to the brake calipers at the end of every stop and in reverse...should be enough to wipe off the surface corrosion after a few normal low speed stops. If it’s taking you 200 ft on a hard stop either you started at 90 MPH or something’s wrong with your car.

I never had that problem in the past 8 years of EV driving either.

 

[JohnFoxeSheets]

There was another post on this issue and if I remember correctly the complaint is their brakes failed after getting wet. I may be mis-remembering but it was about a week ago.

Here: https://www.macheforum.com/site/threads/brake-issues.33865/

It seems something is rotten in the state of Denmark.

(Sorry, I'll see myself out now)

 

[Murse-In-Airy]

I’m confused by people saying this…the car transitions to the brake calipers at the end of every stop and in reverse...should be enough to wipe off the surface corrosion after a few normal low speed stops. If it’s taking you 200 ft on a hard stop either you started at 90 MPH or something’s wrong with your car.

Yes the car transitions to the calipers for the last 4 MPH or so of each stop. If you’re not moving quickly, those last 4MPH may require 4-8 rotations of the tire which isn’t a lot of friction between the pads and the rotors. I live in a land of salt, sand, humidity, and RUST. I can feel the grinding as the corrosion and dirt are cleaned off and finally the pads start to grab. But yes, I am also doing this “cleaning routine” at about 60 MPH. That mimics what would happen in an emergency braking from speed.

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