L405 SDV8 Front Suspension Knocking - LTB00557v8 - Help!

L405 SDV8 Front Suspension Knocking - LTB00557v8 - Help!

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memzy88

Original Poster:

90 posts

96 months

Tuesday 10th October 2017
quotequote all
Hi Gents,

I am dealing with the famous suspension knocking issue on the 2014 SDV8 L405. Car already been 2 times to Hunters with no luck yet.

On the 1st visit they have replaced the bushes and the lower control arms. It was an improvement but knocking is still clearly audible.

On the 2nd visit, i mentioned the LTB00557v8 and the service advisor said they have carried that out and all my anti-roll parts are replaced with the latest available. Massive improvement on the handling, car feels much more tighter and flat however knocking is exactly same as before.

I recently bought the car have had some other issues ongoing with the suspension. They have sorted other bits but as it all added up i have spoken to head of business to reject the car by saying i have given them enough opportunity to rectify it. But in reality i like it and i would like to keep it Smile

He put me in touch with the workshop manager who explained ARC valve block was not replaced on the 2nd visit under LTB00557v8 as the bulltin does not instruct upgrade of the ARC valve block.

Guys at Hunters are trying to be helpful, i have mentioned about online forums and the information i had from here. They have kindly asked if we can provide a registration number that has the knocking fixed. Hunters are happy to check history of that car and do whatever needs to be done on my car and the other cars to follow.

Car is booked in for this Friday for the 3rd time, i am going for test drive with senior tech, and also they promised to arrange post 2015 SDV8 car to go out again as i mentioned post 2015 cars have the newer design twin damper ARC valve block and should not knock.

I know there are few other open topic which i have read them all but wanted to open new one and share all my experience to give it a bit more visibility under the new topic.

Sorry for the length but i am hoping this should help anyone who has to deal with this in the future.

bryanbates

7 posts

196 months

Sunday 11th March 2018
quotequote all
Hi,

I have the same issue with my 2014 SDV8 , did you get this resolved and if so what was the fault

Regards

Bryan
Sheffield

bakerstreet

4,822 posts

172 months

Monday 12th March 2018
quotequote all
memzy88 said:
Hi Gents,

I am dealing with the famous suspension knocking issue on the 2014 SDV8 L405. Car already been 2 times to Hunters with no luck yet.

On the 1st visit they have replaced the bushes and the lower control arms. It was an improvement but knocking is still clearly audible.

On the 2nd visit, i mentioned the LTB00557v8 and the service advisor said they have carried that out and all my anti-roll parts are replaced with the latest available. Massive improvement on the handling, car feels much more tighter and flat however knocking is exactly same as before.

I recently bought the car have had some other issues ongoing with the suspension. They have sorted other bits but as it all added up i have spoken to head of business to reject the car by saying i have given them enough opportunity to rectify it. But in reality i like it and i would like to keep it Smile

He put me in touch with the workshop manager who explained ARC valve block was not replaced on the 2nd visit under LTB00557v8 as the bulltin does not instruct upgrade of the ARC valve block.

Guys at Hunters are trying to be helpful, i have mentioned about online forums and the information i had from here. They have kindly asked if we can provide a registration number that has the knocking fixed. Hunters are happy to check history of that car and do whatever needs to be done on my car and the other cars to follow.

Car is booked in for this Friday for the 3rd time, i am going for test drive with senior tech, and also they promised to arrange post 2015 SDV8 car to go out again as i mentioned post 2015 cars have the newer design twin damper ARC valve block and should not knock.

I know there are few other open topic which i have read them all but wanted to open new one and share all my experience to give it a bit more visibility under the new topic.

Sorry for the length but i am hoping this should help anyone who has to deal with this in the future.
Morning. Whilst I don't have a 2014 RR, the knocking that you experiencing does scream arm bushes and upper/lower arms. Despite recent RRs shedding a lot of weight their are still the best part of two tonne cars and that weight puts a lot of stress on the suspension.

Do you think the valve block and the knocking are linked? I can't see how they could be. Leaking valve block would most likely throw up an error or the car would sink.

memzy88

Original Poster:

90 posts

96 months

Monday 12th March 2018
quotequote all
Yes, i got it sorted in the end. Lower control arms, anti roll bushes were all replaced earlier although it helped, knocking was still obvious.

ARC Valve block was the issue, its design issue and pre Aug 2014 built V8s affected. There is bulletin raised by Land Rover LTB00557v8 . Please see the old vs new design valve with 2 valves.

It took me 3 visits to dealership to get them replace it. I have printed the technical bulletin pdf and discussed with the master tech and workshop controller.


thelandlord69

3 posts

79 months

Saturday 7th April 2018
quotequote all
hi where can i get service bulletin LTB00557v8 as ever the local main dealer is a waste of time and says they have not heard of this bulletin, i have a march 2014 rr v8 supercharged and have the same issue bumping at the front end ? main dealer checked it charged me £100 plus vat and said there's nothing wrong with it ? tried other main dealers but they never phone back seem that the main dealers don't like to do warranty work as they get paid less


found it on topix !! its now under tech bulletin LTB00557V9 has anyone had this work done in West/South Yorkshire area ( I will travel further to get the work done) so i can take to dealer who knows about this please


Edited by thelandlord69 on Sunday 8th April 22:03

thelandlord69

3 posts

79 months

Tuesday 10th April 2018
quotequote all
update been to Farnell (part of the Vertu silly group) Land Rover in Leeds who wont fix the car because its not part of a recall? usual main dealer we don't want to take your money attitude.....we have tried to buy a car from these a year ago but, as ever never returned our many phone calls !

Edited by thelandlord69 on Tuesday 10th April 22:19

picel77

6 posts

73 months

Tuesday 2nd October 2018
quotequote all
Hi ,

I have front bottom bushes replaced due to knocking while breaking in my L405 3.0 diesel reg ‘64 and alignment was done with a few corrections in a main dealer but since then the car rolling unpleasantly to both sides. It is not that tight and flat as it was before the repair.
The dealer keep saying all was checked and is fine but I feel differently.

Would you say it might be something with anti roll bars or/and ARC valve block or anything else?

Thanks

Mysdv8

1 posts

68 months

Monday 4th March 2019
quotequote all
Thanks for the add guys, calling all Range Rover l405 and Range Rover sport owners of 2013 to 2017 models you will be interested in my findings of manufacture suspension fault that I have uploaded a video here https://youtu.be/ZZqV46VMgDY read the description on the video it explains all. I’m happy to answer any questions you may have as I have been investigating this fault for over a year.

Eng44

1 posts

68 months

Wednesday 24th April 2019
quotequote all
memzy88 said:
Yes, i got it sorted in the end. Lower control arms, anti roll bushes were all replaced earlier although it helped, knocking was still obvious.

ARC Valve block was the issue, its design issue and pre Aug 2014 built V8s affected. There is bulletin raised by Land Rover LTB00557v8 . Please see the old vs new design valve with 2 valves.

It took me 3 visits to dealership to get them replace it. I have printed the technical bulletin pdf and discussed with the master tech and workshop controller.

Hi , I am currently going through the same issues. Lower arms changed and then one strut......still knocking. What garage did you get this repaired at ? My main dealer is refusing to acknowledge the service bulletin that clearly instructs them to change the valve block. I assume this is because the approved warranty won’t cover the replacement!
Would you say this is a marked improvement? Would like to drive a car that has this fitted to see. Mine slams into holes and the dashboard rattled since they changed out the lower arms.