F-Type ( X152 ) 2014 - Onwards

Unusual Break Rotor Wear

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Old Nov 14, 2019 | 11:59 AM
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Default Unusual Break Rotor Wear

Throwing this out there for some input.
I have 2 x 2017 base F-types, one will be lease returned in a couple of months and the new one arrived yesterday.

Car is in great shape with 11K miles on it. Drives and handles as expected (actually better - suspect it has 93 octane in the tank) but, I am a little suspect of the break wear. Tires look original and have expected amount of wear, and the bolts don't look like they have been removed.

The rotors, compared with my other f-type are heavily scored, with a lip that I suspect is going to take the rotors below min specs. Pads are about half worn. Not worried about the cost, there is a warrantee on the car, but just wondering if any other owners have experienced this. The car was in Florida; maybe the humidity builds rust quicker that in CA which wears out the rotors? I am a little concerned the car may have sat in water but I guess I will find out by getting under the car.

Your thoughts would be appreciated.

Best, JK
 
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Old Nov 14, 2019 | 01:36 PM
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I didn't think warranty covers wear items like brakes?
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Old Nov 14, 2019 | 01:40 PM
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The car has a 7 day return warrantee and a 90 day condition warrantee. The whole car is covered on the 7 day. Yes, though, Jaguar is not going to cover it - which is fair enough.
 
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Old Nov 14, 2019 | 02:11 PM
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The car might have been tracked and on its second or third set of pads.
 
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Old Nov 14, 2019 | 02:13 PM
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That had crossed my mind, but tires obviously original and the car is otherwise in great shape, no chips or worn tire edges. Inside of car is also immaculate.
 
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Old Nov 14, 2019 | 03:31 PM
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I read somewhere that OEM F-Type rotors can typically last TWO sets of regular pads (not Carbon Ceramic) before they reach the minimum thickness cast into the hubs. Can anyone verify?

That said, most dealers prefer to replace rotors with the pads.

Its possible that the car you are looking at was parked outside in humid conditions. (As in, the NorthEast the past year, 2018 - 2019) Either that or they washed the brake dust off the wheels a lot...
 
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Old Nov 14, 2019 | 04:14 PM
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Originally Posted by Carbuff2
I read somewhere that OEM F-Type rotors can typically last TWO sets of regular pads (not Carbon Ceramic) before they reach the minimum thickness cast into the hubs. Can anyone verify?

That said, most dealers prefer to replace rotors with the pads.

Its possible that the car you are looking at was parked outside in humid conditions. (As in, the NorthEast the past year, 2018 - 2019) Either that or they washed the brake dust off the wheels a lot...
Yes, two sets of pads for one set of rotors has been the norm across pretty much all Jags for many years now.
In reality it's probably closer to three sets of pads as the designated minimum thickness of the rotors is a whopping 2 mm less than new thickness, which given the fairly large thickness to start with (especially of the front rotors) is ridiculously conservative.
The OEM pads and rotors are both fairly "soft" and they both wear much quicker than most after-market alternatives. Which is why OEM Jag brakes are incredibly dusty (and most of the dust is from the rotors not the pads!).
JLR claim this is deliberate "to achieve optimal braking".

Edit - just a thought - maybe the previous owner of the car in question fitted "hard" after-market pads as that could explain the excessive rotor wear.
 

Last edited by OzXFR; Nov 14, 2019 at 04:17 PM.
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Old Nov 14, 2019 | 05:38 PM
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Or the first set of pads wore to the backing plate(s) scoring the rotors....time to measure and consider new rotors.
the new pads will conform to the scored rotors with some aggressive “bedding in “.
 
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Old Nov 15, 2019 | 08:04 AM
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Stock rotors, under normal driving conditions will lat 2 full sets of brake pads. However driving style greatly affects that. A picture of what you call scoring would help understanding what may be the cause
 
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