I understand what your saying re tyres Jaygee but it can't just be down to tyres on 3 different cars.

I had 3 different sets on one of the RRs, Scorpions, Goodyear Eagles and then General Grabber AT3.

There was barely any difference in how that one drove on each different set.

This l405 is running Scorpion Verdes all round, all less than 2 years old and all with 7mm tread.

Just went to the start of the thread and you are still on 21" wheels with 45 profile tyres? Maybe worth seeing if you can borrow a set of 20"? I can tell mine get harsher with just 10% higher than stock tyre pressures and I can imagine a lower profile tyre would be harsher still. 2012 TDV8 Vogue (L322)

If I knew someone to borrow a set off then I would try them.

I certainly wouldn't buy a set and I say this because I did the opposite on my last l322.

I changed up from 20 inch to 21 inch wheels and there was very little appreciable change.

Probably at the sidewall difference between the 2 tyre sizes is about 3mm.

This has got to be some sort of electrical fault that effects all 3 systems.

Maybe something I'm doing when I get the cars for it to have effected 3.

is your tyre pressure set at light or heavy load..

i set mine to heavy and it was distinctively more heavier on the steering.. ... - .- -.




Y. O. L. O.
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Currently set at just below light load on the front 33psi and 33psi on the rear.

I'm only just coping at these pressures.

If I use factory 34F/37R it's untolerable

i meant the menu setting.. ... - .- -.




Y. O. L. O.
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Sorry Stan my bad, in the dash it's currently set to light load.

I suggest dropping the pressures to 25psi all round and going for a very gentle and short drive to see what it feels like. IME sidewall compliance is the main suspension component responsible for dealing with low speed road imperfections. 2012 TDV8 Vogue (L322)

Didnt know you could set the load setting on the dash?

you have 2 options doc.. light or heavy , it should flash up when you start your engine.. ... - .- -.




Y. O. L. O.
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Does a voltage drop to 9 volts when cranking seem okay/normal?

Video:

Last edited by MarianaWestminster on 7th Sep 2023 8:28pm. Edited 1 time in total

Mine drops to high elevens and doesn't shoot up to over 15, its a new battery

Maybe yours is on it's way out.... can't see it being your issue but you never know...  Pete
__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

That's interesting then... thanks so much for the comparison Haylands.

Both the main battery and auxiliary battery are brand new though.

I replaced them as the start stop wasn't working.

Reading a review of the L460 and this is what they have to say about the L405.

Wish I had the car they are referencing:

Click image to enlarge

“The L405 rides better than anything this side of a rolls Royce”
That really is wishful thinking
The trades description act would tear that comment to bits Last night I lay in bed looking up at the stars in the sky and I thought to myself, where,s the f**king ceiling!!