Anyone have experience with Jaguar turning rotors when they are warped? Has to be a big difference than replacing with new. I've heard they are thinner than other manufacturers but don't know if that is true. Thanks all.

 

I'm not a believer in turning discs but here are the relevant figures from the Workshop Manual for your 2010:



Regardless of whether or not the discs are thinner than any other manufacturer, Jaguar recommended minimum thickness is minus 2mm. This applies to both standard and performance brakes and to both front and rear.

These thickness figures are stamped on the centre of OE discs.

Graham

 

I would just replace them, if possible.

If the rotors are properly cut, a good amount has to be shaved from both sides. Even with new brake pads, you may experience little bit of shudder, especially under hard braking, due to the all the extra gap. And, it will not have as strong of an initial bite.

 

I had the Brembos from my XKR Silverstone skimmed at the local gas station and it helped enormously.

Just as an FYI, here is an interesting article relevant to your post:

-Warped- Brake Disc and Other Myths

 

It is quite doubtful that the Jaguar dealer will actually turn the rotors (resurface) themselves. Most likely and in all cases, they will send the rotors out to be turned by an independent brake and rotor specialist.

Since your car only has 5000 miles on it, it is doubtful that you have worn or warped rotors. In addition, since the car is under warranty and they might be defective somehow (which I can't suspect they are) Jaguar should cover the cost. Keep in mind that any warranty work done by the dealer is NOT at the dealers expense. The Jaguar dealer charges back Jaguar USA for the expense of parts and labor. However the local Jaguar dealership must provide good evidence to Jaguar USA that the part needs to be replaced for dealer recovery.

You can check recommended thickness to see if they are truly worn down. They are easy to measure with a caliper. If you feel better having them turned or shaved, ask your Jaguar dealer service manager if they turn the rotors in house or send them out. My bet is they send them out.

If you did the rotors yourself (taking them to an independent shop) the cost is minimal, usually under $20.00 per rotor.

I doubt at 5000 miles I would take "out of pocket" money to replace them. Have them turned first.

Torque on the lug nuts for your car is 75#'s

Just my opinion Boca.

 

Richard,

Where did you find that torque spec?

I believe you are incorrect and that the torque spec is 92 lb-ft. This is on page 210 of the 2010 XK Owner's Handbook (5.0L). The following link will take you to that Handbook and the Table of Contents: TOPIx - TOPIx In the left-hand column, scroll down and click Wheels and Tires. See the paragraph titled Tightening the wheel nuts on page 210.

The wheel torque spec for both 4.2L and 5.0L XK/XKR (X150) models is 92 ft-lbs.

Stuart

 

Hmmm.

Is there something different about Jag dealers in this respect?

I don't think I've ever been in a dealer that didn't have on-site brake lathes

<shrug>

Cheers
DD

 

I was hoping that since this is my first visit to this dealership and they know I just got the car, there will be some flexibility for my first visit, but that might make me naïve as this is Jaguar and this is a business. I had a ton of "good will" over the last 10 years with my Infiniti, but that was Infiniti and I had a great rapport with the service manager. I'd like to keep my car in the best condition as possible, while knowing if options are realistic and practical. To be continued when my car is picked up.....

 

Most Jaguar dealers charge around $125.00 for something like a 125 point inspection. If you get for free.....GREAT.

 

The service writer mentioned I would be getting the 125 point inspection. Was I silly to think it came with the service and there was no charge? I would assume if there was a charge it would have been mentioned. Yes?

 

At 8K mi on the rotors, my EBC rotors needed to be "shaved." I was getting a shudder braking at slow speeds.

My indie Jag shop confirmed the problem. They have the capability to turn the rotors without taking them off. An hour and $70 later the irritation was solved. I was allowed to watch the process...most interesting.

I don't know a lot about cars but from what I've researched warped rotors is not uncommon. I believe any reputable shop will advise you if there is enough material left to turn or if you need to replace the rotors.

Best regards,

 

Stuart:

Got the information on torque of lug nuts from Discount Tire when they put on new tires.

I will go to 92 lbs on torque wrench...

Thanks

 

I would always turn a rotor if changing pads. Why not start out with two clean surfaces?

Looked at Tire Rack and they show 18 different rotors avaiable, from carbon, cryo, drilled and slotted. They don't seem to be that expensive. Has anyone done some research on which of the 18 is most desirable if replacing OEM?

 

I'm thinking this is the best opportunity for me to replace those horrible OEM brake pads. I'm going to pick up the Akebono Euro Ultra Premiums and give them to Jaguar to install. I'll see if I can get the rears anywhere else other than tirerack as well. I can't see myself being a slave to cleaning those 19" rims with those 20+ tight fins every day. I could hire someone full time just to clean the brake dust! I've had the Akebono Pro Acts on my G35 for 8 years and they have almost no dust. They stop just fine. I guess the Euros must be similar if not the same. I'm done with that cleaning!