2018 Cayenne Brakes not the best
Discussion
The wife has had her Cayenne S for a year now, it was just a year old when she brought it. The brakes have always been not so good, hard to explain but i will try.
Pedal is firm, you apply the brakes and they just dont seam to slow the car down, like you still have the throttle on a wee bit, you press harder, you start to get some more retardation but still no "bite" at this point you are usually coming up pretty quickly onto whatever you are stopping for you then really have to press hard and then you get the bite but by this point you are making your passengers quite uncountable.
The wife says its me ! UNTIL it went in for service a few months ago and they give here another cayenne as a courtesy car, i asked her how it was, the brakes are sharp, i nearly when through the screen. For me that told me all i needed to know.
I called up service to tell them of the issues and they set the tech out to road test it and said all is ok with it, they said that the courtesy car had normal steel brakes and hers had some sort of coating on the disks.
We went into lock down 2.0 not long after so have not had the time to go as and see OPC to discuss this, but i am sure on the speck of the car when we looked at it that it did not have the coated disks ?
How can you tell if they have this coating on them, i think it is a ceramic coating?
So anyone else suffer from not so good brakes on there Cayenne.
As a side note one of my daily vehicles is a Ford Ranger which is a similar weight to it, the brakes are so much better in every way.
Pedal is firm, you apply the brakes and they just dont seam to slow the car down, like you still have the throttle on a wee bit, you press harder, you start to get some more retardation but still no "bite" at this point you are usually coming up pretty quickly onto whatever you are stopping for you then really have to press hard and then you get the bite but by this point you are making your passengers quite uncountable.
The wife says its me ! UNTIL it went in for service a few months ago and they give here another cayenne as a courtesy car, i asked her how it was, the brakes are sharp, i nearly when through the screen. For me that told me all i needed to know.
I called up service to tell them of the issues and they set the tech out to road test it and said all is ok with it, they said that the courtesy car had normal steel brakes and hers had some sort of coating on the disks.
We went into lock down 2.0 not long after so have not had the time to go as and see OPC to discuss this, but i am sure on the speck of the car when we looked at it that it did not have the coated disks ?
How can you tell if they have this coating on them, i think it is a ceramic coating?
So anyone else suffer from not so good brakes on there Cayenne.
As a side note one of my daily vehicles is a Ford Ranger which is a similar weight to it, the brakes are so much better in every way.
Tungsten carbide coating: https://www.caranddriver.com/news/a15339768/in-dep...
When you take it in, ask for thickness measurements against manufacturing spec - the new discs, plus the new pads ought to be better than steels, but wear is an issue.
What colour are the calipers? Always a good indicator of spec.
When you take it in, ask for thickness measurements against manufacturing spec - the new discs, plus the new pads ought to be better than steels, but wear is an issue.
What colour are the calipers? Always a good indicator of spec.
Sounds like your callipers will be a very light grey...massive calliper at the front and much smaller at the back. IIRC they were first introduced on the Cayenne. Porsche pride themselves on their brakes....I think all cars area specced that they can stop in half the time it take to accelerate to the same speed. Sounds to me like you have an issue.
The brakes on Cayenne are one of its high points; they don't have any issue stopping the car in general. If the pads have been glazed by consistent light use they can feel wooden and lack lustre. If the pedal feels spongey then there may be air in the system; but it sounds from your description that the pads have 'gone off'. A few heat cycles with progressively harder and harder braking should bring the feel back - essentially they are more than up to the job of bringing 2.5 tons to a stop from 150+, but can be dulled down with day to day driving in traffic. In contrast to the steel alternatives I have found that PSCB's can feel excessively grabby until the same process is applied.
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