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Home > Technical > First issues with new MY10 |
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Markos Member Since: 09 Dec 2007 Location: Ljubljana Posts: 187 |
Hi Max,
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Mon Jan 25 2010 8:31am |
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max099 Member Since: 27 Feb 2006 Location: AT Posts: 16 |
Hi Markos,
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Mon Jan 25 2010 1:17pm |
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shmoogle Member Since: 07 Sep 2005 Location: ... and for every sprinkle I find, I shall kill you! Posts: 24350 |
Are the wheels balanced properly? Maybe a weight has dropped off or something?
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Mon Jan 25 2010 1:52pm |
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Markos Member Since: 09 Dec 2007 Location: Ljubljana Posts: 187 |
What I would do in your case Max I would drive around for some 500km or more and than after that I would do the re-calibration but not at LR dealer but at some other place.
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Mon Jan 25 2010 1:56pm |
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max099 Member Since: 27 Feb 2006 Location: AT Posts: 16 |
Well, the car has already around 6000 km now (was a demo with 4k).
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Mon Jan 25 2010 2:25pm |
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will_wonka Member Since: 03 Mar 2007 Location: Tminus 12 months for the RS Sport Supercharged!! Posts: 3377 |
It seems most of these are just simply a carry over from 2005> on cars. Not new, just unresolved. L322 Big Daddy SUPERCHARGED 5.0 Autobiography - Here & Now!
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Mon Jan 25 2010 3:49pm |
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avos Member Since: 26 Aug 2008 Location: Belgium Posts: 106 |
Markos is meaning something else, this I am very familiar with on my XKR. Jaguar has even a TSB for this which details all the steps to get the best balancing possible. Example, if you drive your car to the LR dealer, and the tires have been warmed up, the moment you stop your car (especially in winter), flatspotting occurs. The longer it takes between the moment you parked your car, and that they take of the wheels for balancing, the worse the flatspotting is. This means that the balancer will balance the wheel with the flatspot, so it will be off balance again when you drive. The only way to avoid this, is to ensure that when you get to the place that balances your car, they lift your car up right away so there is no chance on flatspotting. I ussualy call my balancer just before I come, so they can lift the car immediately (they understand, a kwikfit shop or something like that wiill not understand) Now this is just one way to improve the work of balancing, the next step is to use a Hunter GSP9700 (also mentioned in the Jaguar TSB), here is a link for more generic info: http://www.gsp9700.com/ They have even made a unit specifically for Jaguar and Land Rover, this is for a reason : http://www.hunterengineering.biz/pub/produ.../index.htm Is your LR dealer using this equipment? If not, then I would either try to make an appointment with your car being lifted up right away when you come, of go to a facility that understands how to balance wheels who have a hunter balancer. Will take some more time/cost. But it might be worth it. Last but not least, when the balancer has used the Hunter machine, make sure they mark the spot with the most road force. Then when fixing the wheel, ensure the mark is belo, hand tighten the wheel nuts, then lower the car, and tighten the nuts to the specific torque. This is also part of the Jaguar procedure. 1 last tip (very simple/effective), and this is a check to see if the wheel was placed properly on the balancer (ie they have used the right menthod/parts to fix the wheel to the balancer). When they have balanced the wheel, just ask to loosen the wheel from the balancer,turn it 180 degrees, and fix it again. If they haven't fitted the wheel propoerly, the machine whill show again unbalance. Good luck, Andre. RRS SDV6 HEV Dynamic XKR 700 BHP with Twin-screw and LSD |
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Mon Jan 25 2010 4:22pm |
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Landlord Member Since: 26 Sep 2006 Location: Hampshire Posts: 607 |
Does the make of tyre make a difference ?
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Mon Jan 25 2010 4:50pm |
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max099 Member Since: 27 Feb 2006 Location: AT Posts: 16 |
Well, one should think that the dealers know what they are talking about. Especially because one of them told me about the flat-spotting syndrome. I will ask them if they have a hunter to balance with...
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Mon Jan 25 2010 6:54pm |
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Landlord Member Since: 26 Sep 2006 Location: Hampshire Posts: 607 |
So anyone else with 19" Pirellis having the same issue. Would be interesting to know how common this is ? MY10 TDV6 HSE, Alaska White, Ebony with Contrast, Park Heat, Paddle Shift, Privacy, Heated Steering Wheel, Extended & Premium Leather,
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Mon Jan 25 2010 7:09pm |
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shmoogle Member Since: 07 Sep 2005 Location: ... and for every sprinkle I find, I shall kill you! Posts: 24350 |
Has been reported on here a few times, not sure about any correlation to type of tyre.
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Mon Jan 25 2010 7:14pm |
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max099 Member Since: 27 Feb 2006 Location: AT Posts: 16 |
OK - here's what I've got: Pirelli Scorpion Ice & Snow 255/50 R19 |
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Mon Jan 25 2010 7:34pm |
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KevinJM Member Since: 16 Dec 2005 Location: Belgrade this week Posts: 120 |
am a bit surprised by all the theories about tyre flat spots - overnight parking is not enough to do that with modern tyres.
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Mon Jan 25 2010 8:24pm |
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Markos Member Since: 09 Dec 2007 Location: Ljubljana Posts: 187 |
Max possible problem could be also if the Pirelli winter tires were on the car already on the demo car before you bought it. Winter tires are very soft and usually the demo cars are driven more to the limits which means that when people are testing the car they are also braking like loonies to try how the car stops. And if you do that at higher speeds pressing the brakes to the limit so that the ABS starts to work the profile on the tires (especially front ones) can get unevenly used (the surface is not rounded and flat anymore but it looks like small waves).
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Mon Jan 25 2010 8:34pm |
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