Cheers Stuart, sounds like worth looking into tires then just to eliminate it. My local specialist guy just also agreed to take it for a test drive on fri morn so can report back with his views.
It's got the correct Dunlop maxx tires all round. The rears are quite worn as expected with being the drive train and about 3-4mm but noise def from front. I would have thought these are the second set and fronts got more tread prob 5-6mm.
No evidence of any repair/crash damage and I did usual checks. The condition/minimal stone chips and interior condition seems to tally with the mileage. Had 3 owners but not unusual I guess. It would be good if it is just the tires!

 

Oh and pressures were set correctly when I got the alignment done. Got 4 service records. I also remember seeing the uk advisory MOT test saying tires close to legal limit about 8k miles ago so these must be the second set with about that mileage on and expected more wear on back.

 

Hi guys, I said I would report in when garage guy listened on test drive.
Well after putting it into neutral at speed, no difference to the sound so discounted engine and supercharger. It's to do with the drivetrain and poss combination of a wheel bearing and front tires? You all picked up on poss tires!
He is going to check it out when it goes in for a service on 14th march so hopefully nothing too major. Tires are the Dunlop maxx and about half worn but he will spin them up and should be able to tell. Fingers crossed!

 

I had Dunlop Maxx's on my '07 XKR when I first bought it. I thought I had a worn diff the whine from them was so bad but the noise went away once I changed them for some Michelin Pilot Super Sports.

 

Now you have to have your ears out for the sound of large pieces of tire tread coming off and pelting the inside wheel well liners.

 

Nope, just the whining from a forum member whose views on MPSS seem to differ from 98% of the rest of the world and tells everyone at every opportunity.

Yes we understand you had a bad experience with them but people generally seem very happy with theirs.

 

Same car, same tires. Two slightly different alignments, two different road surfaces, two different wear patterns, two different weather patterns, two different driving habits; two different opinions.

 

I have Goodyear eagle F1's on my BMW which are the same price in U.K. as the Dunlop maxx and really pleased with them, grip/noise and wear so prob go for them. The MPSS are about 20% more and not sure if worth the extra as will be dear when it comes to getting the rears 285/30/20 and good to have all the same.

 

Well it's just been in for a service yesterday and they had a good look at what it might be. Couldn't find anything really but thought it was either front tires or one of the front wheel bearings had slight play and he said low mileage cars can suffer if been stood and moisture gets in? He said best to change tires first.
The dunlops on are asymmetrical so have an inside and outside fit not rotational. What do people think to swapping them over on front just as a test? Would that give any indication if it's that? The noise starts at about 30mph so spinning the wheel bearing in the garage didn't show up much. Any ideas so not just throwing money away?

 

Again, mostly deaf guy here so take what I say with a grain of salt. Swapping them would be worth a shot. It's certainly an inexpensive test but be aware that it could introduce new noises and drowned out the bearings, if it is bearings.

If it's my car, yes I would swap them out for a test drive. But before I did that -

I would first, borrow the mechanic and take turns behind the wheel with him/her. I would find a winding road to test the bearings out with enough straight away to test the tires too. What you hear from the drivers side maybe louder or nothing from the passenger side. Most times it helps with you in the car, pointing out the specific sound to the mechanic.

 

Good advice thanks. I'll change them over at the weekend and see if he is available. Cheers

 

When I had issues on my X350 I used the emergency spare as a replacement. That way you eliminate a bad wheel as well as a bad tyre.

One of my wheels turned out to be slightly warped and I wouldn't have discovered that without replacing the wheel.

 

Cheers but unfortunately don't have a spare and they just give you a compressor now!

 

There are codes on the side wall for manufacturing date.

All my cars, if I go without driving them regularly, I can tell abnormal tire noise at speed has crept in. Lengthy sitting, especially when exposed to sunlight, can help a tire gain imperfections over time. Some of them can be made to go away just by driving.

I'd make sure when getting new tires, that the wheels are checked out. Large cast wheels on a sharp sport suspension makes it easier to get a wheel out of shape.

 

Strange, my 07 XKR has a spacesaver spare and it is still mentioned in the 08 and 09 Owners manuals. I can't see it as only being an option in the 08 UK brochure either.

I know that cars supplied with the option run flat tyres didn't come with a spare though.

 

Also, XKRs equipped with Alcon brakes did not come with a spare. Here's how to add one: https://www.jaguarforums.com/forum/x...-brakes-67260/

 

Latest findings!!
Well I've had two new Dunlop sp maxx tires fitted today and just the same noise/problem!
A different mechanic came out with me also. He suspected wheel bearing but didn't rule out even the rear tires saying the noise can travel.

Anyway I've jacked up each side and spun each wheel as fast as I could and got decent video if worth posting on here?
Drivers was a little noisier but was hard for me to detect play and not sure what's right and wrong?

He also said the noise quietened under light braking but both discs and pads are new? Could there be a prob in connection with the hub so getting vibration?

The pulsing vibration does seem to fit but I'm not sure where to go from here?

 

I am still puzzled why it would need new front wheel bearings at 19,000 miles? I don't want to keep guessing as costing me dear! Had two good mechanics listen to it on test drive but can't say for certain!
Anyone else had to have new bearings at this sort of mileage?
I guess do the suspected one first but not sure if to do both?
Help!

 

Shouldn't have bad WB at 20K miles. Although you can buy separate bearings the Jag has a Hub assembly. The replacement hubs are around $100-$150 per side . Although the bearings are around $30 each (2 per hub) the work to remove and install requires a good press. I would tell the mechanic if they say it is the WB and they install a new one and it still has the same problem then they eat it. See what they say and maybe you'll have to find a different mechanic.

 

Why are there two per hub?
ive read they arnt easy to change and need a big press with care around the ABS sensor but they are meant to be jag specialists so hopefully done a fair few.
Bit awkward trying to get them to take the hit if it's not the wheel bearing as I know both mechanics personally. Always a difficult one there eh.
The drivers side wheel bearing is definitely louder than the passenger side. Whether it's just one side or both is the next question!