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  1. #1
    New2Jaguar
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    Must replace rotors or can turn rotors?

    My service advisor at the local Jaguar dealer told me I will need new front pads and rotors very soon. My X-Type has only 18,000 miles on it. He said that rotors must be replaced with the pads because if the rotors were turned even one time, they would be out of spec.

    The rotors currently function properly, and I would assume they could be turned at least once when needed. This is my first Jaguar, so what experience have people here had with replacing pads and/or rotors? Do Jaguar rotors have very short lives?


  2. #2
    Vic
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    Re: Must replace rotors or can turn rotors?

    If they are thick enough, and you have no pulsation when braking, you can just replace the pads. If they pulsate when braking, they can be turned but they are not very thick so there is not much to try and make them true.

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    Re: Must replace rotors or can turn rotors?

    I had my front pads and discs(ROTORS) replaced at 20,000 miles. My local jag dealer said it was common to replace both at such mileage,as the X is very nose heavy in weight distribution, especially in AWD form.
    Also the X has a tendancy to eat front tyres by 20,000 miles and this can increase the workload on the brakes, as less tread tries to haul the car up, with more brake pressure applied.

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    Agree with Vic.

    If the rotors are smooth, uncracked, don't exhibit any pulsations while braking, and they are above the minimum thickness specification, I'd simply replace the pads. I generally assume that a rotor will go through two sets of pads before requiring replacement - and that includes use with the PBR Metalmaster pads I usually use on other cars. Anyone who simply tells you otherwise without showing you the measurements is simply trying to $sell you rotor$.--
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  5. #5
    Karl Wolf
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    Re: Agree with Vic and C.R.

    Before you have anything replaced make sure you ask for the pad and rotor thicknesses. This will put the "brakes" on any unnecessary work.

    Do a search of this site and you will find the new and minimum brake specifications. Use these as a guide when speaking with your dealer.

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    Re: Must replace rotors or can turn rotors?

    Worn tyres increase brake pressure and wear the brakes out quicker?? He was kidding, wasn't he? When tyres wear down there is MORE rubber on the road, not less, and the grip is increased - as long as the road is clean and dry. That's why most racing cars use slicks, and why F1 racing tyres have grooves cut in them - to *reduce* grip. They ain't much fun in the wet, though, which is why road cars have to maintain a minimum tread depth to be legal.

    All of this has no effect on the brakes, though. To achieve a given retardation they still have to absorb the same amount of energy over the same time period. In these circumstances the rate of wear will be exactly the same regardless of tyre condition.

  7. #7
    jagguy
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    Re: Must replace rotors or can turn rotors?

    You should get 50K miles on the brakes (F&R) and 40K on the OEM tires unless you are doing a lot of stop and go driving. Rotors should be fine .

  8. #8
    New2Jaguar
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    Re: Must replace rotors or can turn rotors?

    The service advisor told me the measurement was currently 3mm and the minimum spec was 2mm. I assume this was for the pads but I will check online here to see if minimums are quoted for pads and rotors. Then I guess I can have an intelligent conversation with the service advisor.

    All this maintenance was included on my Audi's for the last many years so I am not used to pricing out brake service. But $600 for front pads and rotors sounds a little steep to me, even for a Jaguar dealership.

  9. #9
    lostideas
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    Replace the rotors too

    Jaguar does not want the rotors to be cut as per factory text, on x types by the time the front pads wear to 2mm "which is common as miniunm in the industry " the rotors are only about .1 of an inch above spec , some people do pad slap them but the rotors are usually under spec within the first 8000 miles and usually warp depending on driving habits , its the labor that kill you just buy factory parts and go the a trust worthy independent or replace them yourself ,

  10. #10
    Vic
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    I don't find that to be true in all cases

    Often, I find the rotors are easily thick enough to last through a second set of pads. It depends on how the car was driven, each case deserves to be looked at separately.

    Best option is to measure, present the customer with current measurements and min specs and let the customer decide.

  11. #11
    BWheel
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    Re: I don't find that to be true in all cases

    I agree. The pads are made as the 'consumable'. The rotors should easily last as long as 2 sets of pads, potentially longer. Anyone that tells you different is trying to make money off you.

    As long as there is no ridge at the side of the rotor, and there are no significant grooves in the rotor face, you can likely replace the pads without a significant issue.

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    The Mintex pad that fits is available for ...

    ... lots less. Under $50 for the axle set, in fact. If you don't replace (or mess with - I am *not* suggesting that you cut the rotors; at least *I* wouldn't) the rotors, it'll cost you that much plus labor to swap them in. Rotors can be bought for ~$125/pair from aftermarket suppliers and I believe they're probably 'dropoff' types that take an additional 10 minutes/side to replace once you have the pads out. I'd consider $300-350 to be a fair price for a competent front brake job, including these parts with a modest markup.

    That said, while I am perfectly comfortable changing my own front pads and rotors, the Jaguar rear calipers are based on the same stupid principle as Audi's, using the pads and rotor as the parking brake, so they're a pain to change and recalibrate properly. The dealership charges a (relatively) much more reasonable price to do the rears, so I pay them to do it.--
    C.R. Krieger
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  13. #13
    daveUK
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    Re: I don't find that to be true in all cases

    I was told by my dealer that, at 51,000 miles, my front rotors need replacing because they are below minimum thickness. Apparently this is a problem with ventilated discs, they tend to wear out quicker than solid ones. Needless to say, I won't be getting them fitted by the dealer though. Their prices are extortionate!

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    Re: Must replace rotors or can turn rotors?

    Jaguar does not recommend or allow machining of the rotors on any of their cars and they post no machining spec just a minimum thickness.
    I've yet to see an X-type that needed brakes and had rotors that I would use again on the car my family drives in.
    The rotors are always grooved, tapered, rusty and have a large ridge at the outer edge that will interfere with the seating of the new pads, this applies to front and rear equally. New rotors are cheap insurance. If the dealers price of $150 is too much for you just go to an aftermarket supplier. These rotors are very common and are used on several different vehicles and I'm sure you can get a set for less than $60 and honestly I think I've seen rotors as low as $10 if you shop around.
    The X-type doesn't have some magical braking system it uses off the shelf components. I will never understand why someone would risk their safety to save $100 but it happens all the time. I've had people drive out of the shop with their brakes grinding metal to metal and the caliper pistons leaking fluid due to over extension. Go figure, I just always hope they dont drive in my neighborhood.

  15. #15
    New2Jaguar
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    Of course I will shop around first....

    I can see needing new pads at 18K miles, but replacing rotors at the same time every time is not something my salesman bragged about to get me to buy into the brand. At Chevy prices, this would be less painful, but at Jaguar prices the high maintenance is a nice chunk of change at frequent intervals. I am looking for an independent shop that knows Jags to do this work. My Audi 100's/A6's had rotors resurfaced at lower mileages like I have now and I never had any performance issues as a result. That is the only experience I have to compare.

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