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Wobbly rear end (lateral suspension issue)

31K views 62 replies 16 participants last post by  RxRay  
#1 ·
Moving this discussion to it's own thread.

Who is experiencing this? So far I have (other than myself):

RaVoIVoR
F-Pace S
jinjin
MBadger77
Pos.k
jonty1265

For those who've not followed other discussions in various posts the problem is best described and a significant lateral (side to side) movement of the rear end of the car. The front feels tight and stable, and the rear feels suitably firm in a vertical (up and down) direction, but unstable in a lateral direction. A succession of asymmetric movements of the rear wheels sets it off, such as speed humps at an angle, or a series of undulations. It's worse at slowish speeds (5-20mph) and the movement is quite pronounced.

I suspect it's only those of us who live in very urban situations that notice it. For example there isn't a street within 5 miles of my dealer in Coulsdon that sets it off, however there are 10-15 streets around where I live in Wimbledon that do. I've even changed my normal route to bypass such streets.

I was in Brighton at the weekend, and found a few streets there too. If I didn't live in a very urban environment and only encountered it occasionally I would easily shrug it off. It feels very 'out of character' for the car that most of the time has a very firm feel. Engaging Dynamic suspensions helps quite a bit (but doesn't eliminate it) but the whole point of a "normal" suspension setting is to improve comfort in more urban surroundings.

My dealer is shrugging their shoulders, but trying to help. They are organising a technical to home to my home for further investigation. I am convinced it did not occur on the first two hours I had in the original demonstrators, but they have since lent me their new demonstrator and that's identical, so I don't believe I have a fault as such, but I do think something has changed in the way the suspension is set up.

If you are experiencing this, could you PM me, as my dealer has told me the best approach is to get enough people to ask their service department raise a "quality report" with JLR.

Thanks all

JLR#5
 
#37 ·
interested in the outcome, if any of the service folk at your dealers have a view I'd be interested to know the outcome!
 
#36 ·
Well Tuesday morning the dealers "main man" from service and I are going to try to do a back to back two cars same road.. I will accept it as a characteristic, I just want to be sure that is nothing else first! I'll let you guys know the outcome!
 
#35 ·
was there on Sunday for the Wimbledon Winter Wonderland! I do need an excuse to visit my favourite Italian (la Nonna) again though!
 
#33 ·
given I cant pin it down to happening in a certain scenario, I'm putting it down to a 'characteristic' of the car too.. if it really annoys me I'll bring it up with the dealer again but comfortable they did a thorough inspection when it was in for its 2.5 upgrade.
 
#32 ·
^ Hi Rav

I found a few road tests and reviews now that mention this .. coupled with similar complaints on the US forum and the 8 or 9 of us on here makes me think it's a 'characteristic' of the car. Now that I am aware of it, I try to 'drive around' it, mainly by anticipating the type of surface likely to throw it off and either avoiding it (as the case with speed humps in roads near where I live) or using dynamic mode (which reduces the problem) .. occasionally (as happened this weekend) you'll find a road surface that looks smooth but really sets the wobble off. What is very strange is that I can travel the same stretch of road and 9/10 it happens, but then on the odd occasion it doesn't. Which makes me think it's software/adaptive suspension related.

In any case I've decided to live with it. If I look at the 2700 miles I have covered I reckon 2650 of them have been awe inspiring and 50 down right dreadful. I can live with the 2% to have the 98%.
 
#31 ·
No one? Oh well phoned the dealer to say that after all the work they have done, my car is still not riding particularly well, I can cope with windscreen washer issues (they will get fixed but they need new washer jets that point the right way!!!!) and funnily enough the ICTPro issues, but not this really uncomfortable ride! Four up over the weekend with luggage and it still manages to throw passengers left/right, its very strange, most cars behave better when loaded!
 
#28 ·
RaVolVoR said:
JLRnumber5 said:
This may well turn out to be a 'characteristic' of the car .. in which case I bought the wrong car. As I said in a previous post if I lived in a non-urban area I'd probably never experience it.
I'm actually prepared to agree with that, once I have excluded any possible mechanical fault then fine, I'll live with it. Every car I've had as some sort of quirk, if this one is a "wobble/bounce/vagueness" fine that's fine I can cope. Just eliminate the possibility of fault (that could become dangerous) first and I'll get over it!
What I'm thinking is its not a fault but a issue with the maths and calculations that run the suspension. If perhaps we can highlight this as a potential issue in terms of it not performing as they had ideally intended then it can be updated and adjusted in the future.

If nobody knows about it from Jag nothing will happen. If after enough people complain and they see it and say thats absolutely how it should be then fine we have a car that perhaps isn't ideal and we can live with it or sell it.
I just want to determine what the status really is and should be.
 
#27 ·
JLRnumber5 said:
This may well turn out to be a 'characteristic' of the car .. in which case I bought the wrong car. As I said in a previous post if I lived in a non-urban area I'd probably never experience it.
I'm actually prepared to agree with that, once I have excluded any possible mechanical fault then fine, I'll live with it. Every car I've had as some sort of quirk, if this one is a "wobble/bounce/vagueness" fine that's fine I can cope. Just eliminate the possibility of fault (that could become dangerous) first and I'll get over it!
 
#25 ·
I get this effect, but rarely, and sadly for me the one place it is at its worst is two manhole covers that are raised in my road. Going out no problem at all, coming home, wobble. Other than that I do not suffer it that I am aware of, so really annoying
 
#24 ·
Selwood said:
Its an interesting idea but mine happened when warm. Someone mentioned the Dynamic mode and last night I certainly noticed it with Dynamic switched on. Also have 22 inch wheels so maybe the 2 create this problem?
I borrowed a Portfolio on 22inch wheels and Adaptive but my wife and I agreed the ride was better than mine on 19inch. Glad to know as I quipped with the dealer that a wheel upgrade wasn't going to be a cheap fix!
 
#23 ·
^ yes thinking back I've had it happen both warm and cold and in both normal and dynamic mode (although it's less pronounced in dynamic)

I'm making the dealership aware I am "not alone" in this ... would appreciate a PM if you've raised this with your dealer so I can reference that in my discussions. I'm still waiting for a date for the technician to visit me at home where I am able to reliably demonstrate the problem.
 
#21 ·
Just looking through this thread and a thought crossed my mind (yes beginners luck - before someone adds this :) ) One statement "it bounces 4-6 times" and another "it seems worse when cold" could this actually be a faulty damper unit? Dampers work by throttling oil or gas through a small orifice to manage the speed of movement of the outside tube of the damper (in simple terms). Adaptive dampers have a way of either varying this orifice size or magnetically altering the viscosity of the oil. If that functionality fails/sticks/isn't consistent then we'd get this sort of behaviour. If you ever drove a car with completely failed dampers its horrible (not to mention dangerous!).

I'm not saying that our cars are dangerous, but a batch of faulty damper units could explain this completely, and given they will be a unique design to the F-Pace early models would be more likely to have this. My car is a first half June 16 build, if all of your cars are similar age we could be on to something.

or not ;)

thoughts?
 
G
#20 ·
I have the same issue on my 2.0d with adaptive suspensions on top of the error message on the dashboard that comes every now and then and everytime I take it to the dealer he says it's fixed and it comes back. So now I'm really angry and I will escalate this quickly.
 
#19 ·
I've had two PMs as well so it's a bigger list than I thought. Pretty sure this is limited to people with adaptive dynamics but would be good to know.[/quote]

Looking forward to our meet up and feeling the motion your talking about as I just don't feel it in mine.[/quote]

Sure if you are free and can make it we can add an extra chair to the table. :oops:[/quote]

Make it a foursome ;) :oops:
 
#18 ·
I just got mine back after the not so successful 2.5 patch... see the other thread. And my car definitely feels different than it did before. My loan 2.0D R-Sport was super tight, I used the speed humps coming into the car park to the dealer and and also traffic calming on my road.

In the 2.0D the rear end would "wobble" 1 to 1.5 times, so quite firm. My car before dealer visit would feel like 3 or 4 wobbles, more if you didn't hit it full on. Since I got my car back after having the updates and some error codes reset I am somewhere between the 2 not too taught that my teeth rattle, but not too soft I get sea sick. Note I have Adaptive dynamics but was in normal mode and the 2.0D was normal suspension.

Of course need to drive more than just the grumpy "bloody thing still isn't fixed" ride home... so will update after the weekend.
 
#17 ·
Mbadger77 said:
Jagfpacejk said:
JLRnumber5 said:
I've had two PMs as well so it's a bigger list than I thought. Pretty sure this is limited to people with adaptive dynamics but would be good to know.
Looking forward to our meet up and feeling the motion your talking about as I just don't feel it in mine.
Yes I think it's a mathematical over calculation and I think it actually calculates against it's own movement at times.
Be good to see others let us know when and where your meeting up if there's room ad it's not a candlelit dinner for two :)
Might be able to make it
Sure if you are free and can make it we can add an extra chair to the table. :oops:
 
#16 ·
JLRnumber5 said:
So I just returned from a 2.5 hour fairly fast blast .. such an enjoyable car to munch the miles in as I've said before ... the car was feeling particularly compliant and supple, even in dynamic mode, so I ventured onto the streets that usual set off my rear end wobble. Nothing. Well ok a little bit but certainly not the uncomfortable risk of whiplash or smacking the side of your head on the window that usually occurs. So there's a pattern developing here I think. I wonder if it only happens when the car is cold? I'm going to let it cool down and take it out again over the same roads in an hour or so .... intriguing.
Im struggling to make sense of it. I've said to you a few times it does seem ok some days and with me not having many decent places to test it then its hard to really know if I'm imagining it at times. It would explain that it truly does see to be somewhat inconsistent and erratic. Let us know.
I'll email you about some tests.
 
#15 ·
So I just returned from a 2.5 hour fairly fast blast .. such an enjoyable car to munch the miles in as I've said before ... the car was feeling particularly compliant and supple, even in dynamic mode, so I ventured onto the streets that usual set off my rear end wobble. Nothing. Well ok a little bit but certainly not the uncomfortable risk of whiplash or smacking the side of your head on the window that usually occurs. So there's a pattern developing here I think. I wonder if it only happens when the car is cold? I'm going to let it cool down and take it out again over the same roads in an hour or so .... intriguing.
 
#14 ·
Got car back with 2.5 and all suspension work applied, service guy didn't have a clue about work done he was "covering" for regular team. Suffice to say that if its not on Topix its not been done! Haven't really had much chance since collection to drive it but it didn't feel any better in short journey so far, not really a surprise though.