Rusty brake discs

[Hack]

Probably the Audi wheel design and how you wash them vs. the Mustang wheels is the cause. Unless the Audi has carbon ceramic rotors, they are going to be mostly iron just like the Fords. I usually don't get rust on my rotors, but when I wash my car it's cool outside generally. And after I wash I pull the car into the garage where it's cool as well.

Oh, and I also don't drive the car far enough for it to warm up before/after washing. I wash the car in my driveway when the car is cold.

I have had rust on my rotors after a wash just a couple times when it was hot and humid. Now I just avoid washing the car on a hot, humid day (or that time of day).

Sponsored

 

[WD Pro]

I was at a car show on the coast today, we turned up about two hours after it started and all the cars already had rusty disks …

The ones just off the prom were better, but not by much.

WD

 

[DFB5.0]

Different iron quantities affect rust rates. These are iron discs so they’ll all rust eventually. Check out any car dealer lot after a few days of rain lol.

That's my theory as well.

I have a Jaguar XE which doesn't seem to rust over anywhere near the rate at which my Ford's do.

 

[ice445]

That's my theory as well.

I have a Jaguar XE which doesn't seem to rust over anywhere near the rate at which my Ford's do.

Isn't it just due to the carbon content of the steel used to cast the rotor?

 

[galaxy]

Isn't it just due to the carbon content of the steel used to cast the rotor?

Iron content.

 

[TeamGomez]

Washing with deionized water exacerbates this problem exponentially if you wash with cold rotors and park it without ensuring the rotors are dry.

I will heat up the brakes a tad by doing a couple hard stops before washing. I follow this up by dragging the brakes for about 30' before tucking the car away and hitting it with a leaf blower. Every other wash or so the car goes up on a lift so I can wipe down the inner barrel of the inevitable water drop that comes out of the rotor regardless of my efforts (ceramic coating said barrel makes this near effortless).

Have not tried either of DFB's recommendations...his have yet to fail me.

 

[Bluemustang]

Drive the car

Sponsored