2018 GT malfunction of the day - Brembo brakes

[RegDir]

I switched rotors almost immediately, first time I've done so in a car. Between cars and Superbikes I've owned at least 50.

Why? These rotors rust fast. They might offer a performance advantage in composition but IMHO it's not worth the tradeoff. Dont know..I've had plenty of Brembos in the past so there must be something in the Ford spec.

Huh? They are bare cast iron like every other common rotor made. They will all rust. Combine with a semi-metallic pad and no movement and you have locked brakes.

Op, drive the car after washing to dry the brakes or maybe switch to ceramic pads and see if that prevents lockup. I have no clue since I actually drive my car.

Sponsored

 

[Kevin08]

I use a 580 CFM leaf blower to air dry the majority of my car after each wash, it really helps with getting all of the water out of the brakes.

 

[jake_zx2]

220 was a day of spirited driving on some country roads with varying degrees of tight turns. I'm sure the pads were bedded, but just never thought this would be an issue.

If you're trying to say that this was your bedding procedure, then I doubt this was adequate. street driving will almost never use enough prolonged pressure to properly bed pads, no matter how "spirited" it is

 

[Clump]

I do like the OP and have never had a problem. My '16 GT also had Brembos and I never had a problem. I do see surface rust on the rotors after washing, but the next drive cleans them up and coats the wheels with brake dust.

2 differences:
I always bed my brakes on a new car like this - https://brakeperformance.com/bedding-in-rotors.php

I pull in the garage and back out. Maybe there's some mechanical advantage to breaking them free in reverse?

 

[jake_zx2]

I always bed my brakes on a new car like this - https://brakeperformance.com/bedding-in-rotors.php

https://brakeperformance.com/bedding-in-rotors.php

This is exactly how new brakes should be bedded

 

[sdiver68]

Huh? They are bare cast iron like every other common rotor made. They will all rust. Combine with a semi-metallic pad and no movement and you have locked brakes.

Op, drive the car after washing to dry the brakes or maybe switch to ceramic pads and see if that prevents lockup. I have no clue since I actually drive my car.

Sorry. I've had far too many vehicles to accept that explanation. Why do they rust sp quickly on a Mustang even just sitting in a garage when they don't on BMW, Lexus, Porsche or any of my couple dozen Superbikes all on Brembo or Brembo quality level brakes? Do you realize OEM Brembo comes in many levels and most aren't the same as aftermarket Brembo?

Glad I switched mine out!

 

[TomcatDriver]

I have seen similar behavior on other cars, but I admit I have never let a car sit in the garage for days after washing. If I fail to make a round the block run the first brake depression will make a kind of nasty "fingers on the chalkboard" sound.

 

[kz]

Several times I washed my car and then left on a business trip for a week or more (didn't want it to sit in the garage dirty). It always was fine. I also rarely drive it immediately after washing since it goes back into the garage for some kind of wax/detailing work. Never had a problem.

 

[rickdrews5]

Have had this happen before on a car that would sit for long periods. Few things I have learned that have helped me avoid this:
- only wash the car when the rotors have cooled to a point where I would be able to touch them without crying out in pain.
- as someone else said blow drying is key esp for brakes and wheels.
- leave no sign of rust on the rotor after a wash. As others have said take it for a quick spin. What has worked for me and minimized the resulting ‘rust dust’ on my just washed wheels is to back out of the driveway with light pressure on the pedal,then put in drive, repeat three or four times,

Hope it helps.

 

[Jetnoise]

What product do use to clean your wheels?
How is it the Caliper takes the blame for the corrosion?
Wouldn't it be the pad? Hmmmm What do you think the pad is made of?

 

[Norm Peterson]

Perhaps it has something to do with the Brembo caliper bridge being more 'open'.

Norm

 

[HeelToeHero]

Happens on my '17 GT PP as well.

 

[Cobra Jet]

I have washed my own 2018 EB Prem w/PP (and prior 2016) and put it away without driving it anywhere, where the wheels and brakes were still wet (after drying the body of the car) and have never had that issue ever.... not with this Mustang, but ANY other vehicle we have owned.


Rotor surface rust, sure
Brake calipers clacking or “scraping” on the surface rust of rotor, sure
But totally locking down the vehicle from being able to be moved.... no....

Maybe on a Retro-Rustang that has sat in a field for 20+ years, with totally locked up brakes....but not a brand new vehicle.

It sounds like you have defective brake calipers or the pads are defective.

 

[saleen367]

Appreciate all the genuine responses.

I did talk to a service advisor today at a completely different Ford dealership and he stated that is unheard of and should never happen, regardless of my wash routine. Surface rust, yes, but completely immobilizing the car in a weeks time, no.

I'll update after I take it in on Thursday.

 

[JaxS550]

I hated the stock PP brakes. I had this issue from time to time and the brake dust was insane.

I swapped over to PowerStop drilled/slotted rotors and extreme pads. Far less brake dust and noise, braking feels the same.

Sponsored