An expensive peace of mind

Or as the service manager once told me when they handed me the bill for the engine out service on my 355: " John, that's one of the joys of owning a Ferrari! "

 

Sorry to hear this. I personally don't know anyone with that experience.

 

Contaminated by a chemical brake/wheel cleaner?

 

Any new carbon ceramic rotor will look/feel different when compared to a used one. Inspect a couple other used cars will similar rotors that have some miles on them before you conclude they are bad. Of course, I'm assuming you didn't have any complaints before the dealer made the recommendation.

 

I would wait for those to wear out completely before changing them, you could also consider changing to steel discs as well such as giro disc

Welcome to Girodisc - company dedicated to the manufacturing of high quality brake components and brake systems

Regards

Michael

 

Have you contacted Gohm?

I would argue for material defect (rotors) and against wear and tear. The rotors certainly don't show usual wear pattern!

In Germany you also have the "gesetzliche Gewährleistung". This means that the dealer is liable for defects for 6 months after you bought the car. If you need more info let me know.

Besides you hardly drove the car.

Regards,

CF

 

When I had to replace the discs on the 599 I had a maintenance message IIRC, and I had driven some kms on track. So I never had this experience.

Regarding overheating, I was told that the drills need to be cleaned (implying removing the discs and putting them back) after intensive driving; maybe if it's not done the discs will wear differently.

 

If it's not a defect, then in theory wouldn't those of us with similar mileage and driving style be facing the problem?? I'm also surprised they can't explain what caused it (which is usually a sign of normal wear and tear, which brings me back to my first question).



Jim

 

Wow. This is very unusual. They are made for racing and braking hard. I heard there is a company in the UK that can resurface CMM rotors at a fraction of new. I know some guys did it with their 430's. I would have to assume it can be done on a 458 as well.

 

Try SICOM Brakes in Germany they should be able to resurface them for you.

http://sicom-brakes.de/

Regards

Michael

Sent from my SM-G935F using Tapatalk

 

As someone else said, I'd go rub some cotton on another high mileage 458 and see what happens. CCB should last the life of the car, or at least a lot longer than yours did. I could see one rotor being contaminated and perhaps damaged by something, but all 4?

If you paid already, oh well, but seems sketchy.

 

Just curious, how was it diagnosed?

 

Not sure exactly what parameters the computer uses to determine brake wear on ceramics, but I do know it is possible to wear them to the point of replacement with frequent and hard track use. Of the 34K kilometers how may were on track? A fast driver on a track such as Monza, for instance, will cause wear at 10 times the rate of brisk street driving, maybe more.

Agree with the advice of getting an official reading from the computer - you cannot discern wear from visual inspection on these carbon ceramics.

Best.

 

Nuno,

I went out to the 458 right now, my observations on the '12 car with K36Kms:

Back perfectly flat, front as you described yours.

My 7-years warranty was 4 weeks ago and my dealer said the brakes were in perfect condition.

If I take a cloth, on the back rotors it slides over the surface, in front it hooks/tears everywhere on the surface (or how that is said in English)

So my advice: DO NOTHING !

 

Mine look similar. During my PPI at a Ferrari dealer I asked specifically about the rotors and was told they all look like that after some normal use, not to worry. If you read the Ferrari service manual it'll say to replace them, but it's not necessary.

Even though the surface looks rough it's actually has much more flat areas than delamination areas. If you scrub a pad over the rotor you'll probably get very similar resistance (coefficient of friction) to a new rotor. If it's as bad as they say you'd see much higher resistance as the rotor cuts into the pad. You'd also probably see tons of brake dust all over your wheels!

If you need to replace the rotors I'd look at using corvette CC rotors. I believe they're practically identical and much much cheaper.

 

Any part numbers? I have re-rotored many Brembo brakes, and all that is required is a quarter-inch drive torque wrench to tighten to bobbins at 5 FT-LB of torque. If and when it is time to replace the rotors on my Italia, the above option has appeal! My hesitation are the words "practically identical" which should be clarified.

 

I've not done an exact part number comparison. What I know is when looking for aftermarket pads most companies use the same part numbers for both 458 and the corvette (with the CCB option). I figured if the pads are the same the rotors should be very similar. In fact, I believe the front rotors are within a couple mm in diameter (half that in radius) and the same in width. They both have a 10 bolt hat and look almost identical. I'm not sure of the bolt circle radius but both are made by Brembo.

I'm sure both Ferrari and brembo (and any other OEM using brembo products) try to spec out parts that already exist saving both companies lots of engineering and non recurring costs. So it's not surprising that several companies probably share the same components, although they'll put their own part number on each.

Anyway, if money was an issue and I was in need I'd certainly do more research on this subject.

 

+1

Have them weigh the rotors and compare the weight to the gram weight noted on the rotors themselves; that's usually an accurate indication of wear. Also you can attach the car to the computer and it will print out some usage estimates as a percentage of wear for the front and back rotors.

By the way, one thing which can mess up rotors is running the wrong pad compound. That's okay with cast iron rotors, but not CCM rotors. When I first purchased my 458, I wanted to buy a spare set of brake pads; I thought maybe I'D try a race compound, so I called and spoke w/ Brembo. They were very tight lipped regarding giving out any information, since these are Ferrari parts. However, they did mention that using the wrong compound pads could damage your rotors (basically they said the rotor and pad compound has to match and be compatible, so you can't really just start experimenting with all sorts of different pads).

Ray

 

I just went down stairs and checked my car - 2013 with 11,000 miles. Rotors are sort of a combination of smooth and rough. According to the photos in the service manual, they are probably suspect. However, I was just at the dealer for service and posed this very question to their senior tech (some one very knowledgeable about Ferraris). He told me they go more by rotor weight than appearance. He also showed me the print out for my car and based on the algorithm used, the fronts were only showing 9% wear.

My gut feeling would be to replace the pads, bed them in properly and then see how long they last. If they wear out prematurely, then that might be cause for alarm. Otherwise, as long as the car stops, I think I'd take my chances and just keep a close eye on the rotors.

Brand new rotors are very smooth, but I'm not sure how long they stay that way. When I bought my car, my rotors looked just as they do now and the car only had about 5800 miles on it.

Go watch how these rotors are made on YouTube and get some rest

Ray

 

So friend Nuno: do not replace these fine rotors is the average advise here !

 

Talking of brakes, I just had my speciale serviced,,report shows green throughout, no problems, brakes I am told at 7% used,,,my issue is brake squeal, does any body else suffer from this, I have this problem after 10 miles of driving then when and if I need to break the noises is somewhat deafening and embarrassing, I will speak to the engineer on Tuesday when I collect the car but any advice would be greatly appreciated,,

 

Mine squeal as well until they come up to temperature.

If you need to?

It is BRAKE not BREAK.