I replaced (front and rear rotors/brakes) on my 2012 xj.
Getting steering wheel vibation @ 40-40mph.
I found nhtsa service bulletin #jtb-00260-nas2 (power steering problem at low speeds)
could this be it (maybe recall ?)
or warranty issue.

 

Did this vibration start right after replacing the rotors? Could one of the new rotors be out of balance? Where did you get them? Did you knock off one of the tire weights and now a tire is out of balance? It sounds like those would be the most likely reasons. Also the steel band inside a tire can break loose and cause vibrations and squirrely handling.

 

My xj is always serviced @ cherry hill, nj (jaguar dealer).
My steering wheel wobbled when braking and jaguar changed my front rotors (stated the were "warped)
replaced under 1 year warranty. I also at same time replaced rear brakes/rotors.
So now, front and rear brakes/rotors all new at same time. (august 2017).
Wheels balanced by jaguar and now have smooth braking but still feel vibration @ speeds 40-50 mph then less @ 70mph and over.

Thanks rhomanski,
joedoc

 

If the vehicle is exhibiting 'steering flutter' during certain speeds, the suspension components and wheel balance must be inspected.

 

So, I guess a dealer would not use aftermarket/cheap parts. So the possibility still exists that a wheel is out of balance. Or the steel belt has broken loose. If they used the glue backed stick on weights it could easily have lost one. They can come off at any moment and cause a vibration. Or if the tires have twenty thousand miles or more the belt can come loose. I've had that happen several times too. Eventually the tire will self destruct as the belt chews it's way out of the tire. Once I was driving through a small Alabama town and noticed the car was driving strange. I pulled over and found a front tire low. I ran my hand along the inside of the tire and felt the belt coming out of the rubber. I had to stop every hour and fill it up. After I got where I was going I bought a new set of tires mounted and balanced for $300. It was an '88 Dodge Daytona so not really an expensive car nor were parts expensive. It was cheap and a good commuter car.

Another time I was driving a Firebird across Alabama and the brakes started squealing. It was the day before Thanksgiving. When I got here I told Mom,"Grab your keys and let's go to the auto parts store" While she was cooking Thanksgiving dinner, I was out in the garage doing a brake job. Sure do miss Mom.

Anyway, I'd take it in and see if the tires are out of balance. Usually they will have trouble getting a tire to balance if the cord is loose inside the tire. Most of them will get as close as they can and not tell you anything so watch them. If they have more trouble with one tire then replace it or if they are worn pretty good replace the whole set. If nothing can be found wrong with the tires then you can look into that steering thing.

 

Should I request my Jag dealer to use Road Force Ballance (RFB) machine on my next service ?

Thanks NBCat,
JOEDOC

 

I'm sure all they use is a spin-balancer with the wheel removed from the vehicle.

If they can take the time to use road force balancing, that would be a better approach, but it may be better to take the vehicle to a tire shop that can do that type of balancing.

 

After reading all these posts, not one has mentioned an alignment. In my experience when I have extensive work done on the rolling gear and bushings I get a 4 wheel alignment and as a result do not get these kind of aggravations. IMHO misalignment can give theses symptoms.

 

+1 on having the vehicle aligned, if that wasn't part of the operations done previously.

Typically, steering flutter is not caused by wheel alignment being out of specification. Of course, anything is possible. More likely a tyre cord separation, or missing wheel weight as was mentioned earlier.