Leopard

On 4/9/2019 at 5:42 AM, dglick said:

SO Went on a drive with a Jaguar engineer

His verdict is all suspension fine, but a common problem "apparently" is when the tyres wear down (mine are good Pirellii tyres, about half way through their life) - they causes a wobble with Jaguars.

Only fix would be to put new tyres on, and then he said it would come back as tyres wear down.

He has been working with Jaguars all his life, and said he gets asked this all the time. He seems to think its the direction Jaguar have gone with their suspension -=instead of luxury you feel every bump in the road

Find it all unbelievable personally as the car was as smooth as anything when I bought it 12 months ago !

 

Been trawling Jag sites and questions have been raised regarding the CATS active dampers. There are accelerometers that firm up the suspension when cornering, braking and accelerating via a solenoid. Other than slow speed and doing one of the above, the solenoid on the strut should be in soft mode when moving. Default is firm and will change to soft once it receives a voltage signal. Maybe the choppy ride is because the damper isn't receiving signal and remains in firm mode?

I dont agree with the whole 'blame the tyre' theory. I was originally on Dunlop Sportmaxx and changed all 4 tyres for top of the range Pirelli's (there are two variants available), and after great expense found the car to be no better. I've got a theory that it may be spring related and they may have relaxed unevenly and have different preload thus giving a choppy ride.

Can you please report your findings for me as I'm very interested in the outcome. So far I've replaced wheels, tyres and have had the wheels balanced for the umteenth time and still not really making things any better. Would be much appreciated 👍

On 3/25/2019 at 6:58 AM, dglick said:

I have a 2015 2.2  Diesel XF on about 45k miles

Car is in great condition, well looked after, but has developed a wobble.

Very hard to describe but feels like every dint in the road is exaggerated, and every road without any holes or bumps, you can still feel an exra wobble as it drives (any speed) - almost like every few revolutions of wheels its going over a small bump.

Its just been in for 4 year service and MOT, at Jaguar which is passed with flying colours, and they confirmed the suspension is fine.

Tyres all ok, apart from one which has a puncture repaired.

Jaguar recommended balancing the wheels, to fix the problem which they did - at a steep cost, and this has resulted in the wobble being more noticeable, not less.

What makes me nervous is that I had similar problem with my last car an S-type which resulted in me replacing nearly every suspension part possible, but it never really went - just cost a fortune, and that was not via Jaguar, but a local garage.

Any thoughts / clues appreciated ?

 

I have a similar issue with my Facelift XFS. Have you found the culprit?