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CSK



Member Since: 15 Oct 2010
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Resonance

I've had a L405 on loan for two days and if everything goes to plan, I should be the proud owner of this particular car next week.
I noticed some resonance inside the car and had read in some review that it was due to the aluminium structure. Has anyone else experienced this? It's not annoying really, it's faint but it's there, is this a design fault? Car has the 22inch wheels fitted, maybe that could be the cause?

Post #280497 12th Sep 2014 6:02am
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Ajay(UK)



Member Since: 02 Mar 2010
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I had the same issue on a 24 hour test drive recently Shocked I put it down tho the 22" wheels but either way it significantly dampened my enthusiasm for the new model Crying or Very sad

Andy. 2015 L405 SDV8 Autobiography, Indus Silver with Black Pack.
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Post #280540 12th Sep 2014 10:24am
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5.0



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I don't have any resonance and I have 22s.

Post #280563 12th Sep 2014 12:58pm
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CSK



Member Since: 15 Oct 2010
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Or perhaps the tyres needed changing, alloy wheels were kerbed, apparently due to the low profile tyres, sidewalls were also damaged but not to the point it is dangerous said the dealer.
Andy, I thought my L322 was quieter with a softer ride but I happily trade some of that in for a more focused drive which the L405 is now offering.

Post #280575 12th Sep 2014 3:38pm
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d3rm0



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LR have a warning on the config about road noise and ride when you spec a 22.

Post #280800 13th Sep 2014 7:39pm
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Philip



Member Since: 05 Jan 2010
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22"s and the tiny resulting sidewall seem entirely counterintuitive on a 4x4 unless you want to impress ya homies in da hood.

Post #280887 14th Sep 2014 11:08am
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CSK



Member Since: 15 Oct 2010
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I think the 22 diamond turned wheels look good and give the car more feel in the twisty bits. I don't off road in the true sense of the word but I do dirt tracks and mountain roads in winter. There's a LR approved Conti winter tyre in 22 for those moments so I think it will be perfectly fine for my use.

Post #280903 14th Sep 2014 1:00pm
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Aeroresh



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Trommel wrote:
22"s and the tiny resulting sidewall seem entirely counterintuitive on a 4x4 unless you want to impress ya homies in da hood.


Tiny? Its like 110mm or the same sidewall as a 225/50 or even a 185/60 tyre! Rolling Eyes '14.5 SDV8 Nara Bronze for sale
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Post #280918 14th Sep 2014 2:36pm
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Flugplatz



Member Since: 27 Feb 2014
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Re: Resonance

CSK wrote:
I've had a L405 on loan for two days and if everything goes to plan, I should be the proud owner of this particular car next week.
I noticed some resonance inside the car and had read in some review that it was due to the aluminium structure. Has anyone else experienced this? It's not annoying really, it's faint but it's there, is this a design fault? Car has the 22inch wheels fitted, maybe that could be the cause?


CSK, is the resonance from the front axle? Mine has 22" wheels and, I'm told, all the latest-spec revisions to resolve the 'knocking'.

However, there is still what I'd describe as almost a wheel bearing-like, rotational noise from the front of the car on most road surfaces. It is really irritating... I can also feel through the steering what feels like a faint looseness/rattle somewhere in the front axle...

I've been through the process with the dealer, but am still not happy. Am about to start the discussion to say that maybe they should take the car back, period...

Post #280971 14th Sep 2014 6:31pm
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Philip



Member Since: 05 Jan 2010
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Aeroresh wrote:
Tiny? Its like 110mm or the same sidewall as a 225/50 or even a 185/60 tyre! Rolling Eyes


Both of which are sizes you'd regularly find on an off-roader, obviously ...

The 22" tyres have about 1 1/4" less sidewall than the 20", it's no wonder you see so many scraped 22" wheels.

Post #280973 14th Sep 2014 6:39pm
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Aeroresh



Member Since: 31 May 2008
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No but they're not 'tiny' by any way shape or form. The 20" wheels on the l322 only have 1/2 inch or so more sidewall.

Tiny would be something sub 80mm any you might have a point on a rr.

Scraped wheels just reflect bad driving, cant blame the car for that.

If you want hard core off-roading then yes small wheels with massive treaded tyres are a must but the 22s with all weather tyres are more than capable and don't look too big '14.5 SDV8 Nara Bronze for sale
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Post #280980 14th Sep 2014 7:23pm
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Emperor Mong



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I have 21" wheels.

There is a bit of a quiet, dull "thrummmm" at 85mph (on the autobahn) on certain (most) surfaces. A tiny bit more than tyre roar.

Is this the resonance?

Post #281013 14th Sep 2014 8:29pm
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Flugplatz



Member Since: 27 Feb 2014
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Emperor, yes, that sort of does sound like it but in mine it seems to occur at/on most road speeds/surface types.

Anyone in, or with access to LR who could shed some light, that would be appreciated, thanks.

Post #281118 15th Sep 2014 2:00pm
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CSK



Member Since: 15 Oct 2010
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Yes that seems the same as I experienced although I only had the car for two days.
Not coming from the front in particular more from the chassis.
I found an older thread on this forum about the same problem, apparently it is the heat shield.

http://www.fullfatrr.com/forum/topic21229....=resonance

Post #281122 15th Sep 2014 2:48pm
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