Home > Technical > 2018 RR SPORT SVR FRONT LOWER ARMS
Page 1 of 1
rugged-muddy
Member Since: 24 Feb 2016
Location: west sussex
Posts: 3
2018 RR SPORT SVR FRONT LOWER ARMS
Hi everyone
Have a 2018 SVR with 30,000 miles on clock. Started pulling to the left quite badly so took it for tracking and after tracking realised the front lower arms need changing as they have play and hence part of the reason for the pull. All okay and understandable up to here.
Now next issue bought new set of lower arms (genuine) tracked the car and it’s still pulling to the left slightly. So retook it for tracking (cars done less than 50miles since the new arms at this point) and the genuine Land Rover bush already has play in it again. Second issue the steering has become much more stiff than it was.
I’ve re-ordered the arms and will be sending the others back under warranty but being that I bought genuine for quality it’s made me wonder if the arms I’m ordering for it are correct. Part numbers below?
1 LR149617LR
1 LR149799LR
Really peculiar, anyone had issues like this before?
Sat Oct 12 2024 11:23pm
Oldandconfused
Member Since: 18 Jun 2017
Location: Norfolk
Posts: 781
I'm suprised the bushes had failed in only 30k miles. Have you been using a LR specialist for the work? On my old L320 they lasted 12 years and 70k.
There should be movement in the bushes, they do flex but should return to their original position. A lot of non-specialists don't know this and think they have failed. This can include MOT and wheel alignment services. I had exactly this when I took mine for alignment, having been told they'd failed (would I like a quote for new ones?) they passed the next 2 MOT's at the LR indi I use.
Did the alignment centre use a Hunter or similar rig? Did they put it into Tight Tollerance mode. Did they torque the bolts up before they lowered the car?
I may be barking up the wrong tree but just a thought.
Sun Oct 13 2024 11:52am
rugged-muddy
Member Since: 24 Feb 2016
Location: west sussex
Posts: 3
Thank you for your message, all your points are valid. I only take the car to main dealer (Harwoods in Brighton since owning it when it was 1 year old). The only thing I do outside is the tyres as they’re much cheaper elsewhere. I use a formula 1 Autocentres which are very good I use them for all my other cars. So there’s a level of trust. And I’ve used them for the tracking.
Now something that’s come to mind. What height should the tracking be done? Ie should it be don’t lowered, middle/drive height or off road. You would presume drive height, now I wonder if (I don’t think this would be the case as the person who does the tracking has a sport himself too and is experienced if he turns the car off and it goes into lowered access height. I will just wait for your update on this then go back to them.
Thanks
Ali
Sun Oct 13 2024 12:58pm
Oldandconfused
Member Since: 18 Jun 2017
Location: Norfolk
Posts: 781
From reading on here and the D3/4 site, the car should be on level ground before adjusting the ride height and then tightening the adjutment bolts. If they're torqued up while the wheels are off the ground, the bushes will twist when it's lowered and prematurely fail. There are measurements to ensure it's the correct height (again from memory from the centre of the wheel to the wheelarch).
Raising and lowering the ride height will change the geometry so I can't see why it would be done in anything other than in road height.
Did you use the main dealer for the arms? They won't have sent it out without adjusting the alignment and genuine LR parts have a 2 year waranty.
Sun Oct 13 2024 1:29pm
2 RRS
Member Since: 04 Sep 2016
Location: Shropshire
Posts: 174
Re: 2018 RR SPORT SVR FRONT LOWER ARMS
rugged-muddy wrote:
Hi everyone
Have a 2018 SVR with 30,000 miles on clock. Started pulling to the left quite badly so took it for tracking and after tracking realised the front lower arms need changing as they have play and hence part of the reason for the pull. All okay and understandable up to here.
Now next issue bought new set of lower arms (genuine) tracked the car and it’s still pulling to the left slightly. So retook it for tracking (cars done less than 50miles since the new arms at this point) and the genuine Land Rover bush already has play in it again. Second issue the steering has become much more stiff than it was.
I’ve re-ordered the arms and will be sending the others back under warranty but being that I bought genuine for quality it’s made me wonder if the arms I’m ordering for it are correct. Part numbers below?
1 LR149617LR
1 LR149799LR
Really peculiar, anyone had issues like this before?
Looking at the parts catalogue there are several part numbers for the l/H and r/h lower arms, but for a 2018 SVR you have the correct items, they are classed as Premium Front Spring Bushings as opposed to standard on all other vehicles. As long as the suspension was at the correct height (471mm from centre of hub to underside of wheel arch) before being torqued up then there is no reason the bush should have failed through twisting. Have you checked you don't have a binding front caliper causing the pull to one side?
Sun Oct 13 2024 1:54pm
erickwan
Member Since: 27 Mar 2016
Location: P Jaya
Posts: 138
Re: 2018 RR SPORT SVR FRONT LOWER ARMS
rugged-muddy wrote:
Hi everyone
Have a 2018 SVR with 30,000 miles on clock. Started pulling to the left quite badly so took it for tracking and after tracking realised the front lower arms need changing as they have play and hence part of the reason for the pull. All okay and understandable up to here.
Now next issue bought new set of lower arms (genuine) tracked the car and it’s still pulling to the left slightly. So retook it for tracking (cars done less than 50miles since the new arms at this point) and the genuine Land Rover bush already has play in it again. Second issue the steering has become much more stiff than it was.
I’ve re-ordered the arms and will be sending the others back under warranty but being that I bought genuine for quality it’s made me wonder if the arms I’m ordering for it are correct. Part numbers below?
1 LR149617LR
1 LR149799LR
Really peculiar, anyone had issues like this before?
Were the retaining bolts tightened when the weight of the car was on the wheels. Otherwise, the bushes would be in a constant state of tension, resulting in shorter life.
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum