As it’s tucked down the front, I think you should just have to remove the engine cover and the hose between the inter cooler and throttle body (pretty easy) 👍🏻

Liberal dose of lube  There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

Only early 4.4 TDV8 had issues with a sticky CSOV prior to LR changing the linkage design. My MY12 has the later design so shouldn't be an issue on L405s.

Tend to agree, but it’s worth a look and a fiddle, nothing to say the solenoid hasn’t given up. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

It does affect L405s.

The OP mentioned earlier in this post that it had been diagnosed at the turbo shut off valve. This is not the CSOV valve. The turbo shut off valve is on the left hand turbo , and is prone to sticking. See my post earlier in this thread.

Just so I’m up to speed… when we say left hand that’s ’near side’ in the UK not left hand looking at the engine from the front - is that correct?

Anyway - based on your very helpful comments and suggests..

I popped out early for a 36mm socket and have removed the oil filter. I could not see any pipes in the locality so can’t say if anything is not plugged in. There was some oil past the rubber washer on the filter though

Click image to enlarge

Click image to enlarge

Click image to enlarge

Hi Dtech

The first diagnosis was the ‘Secondary Turbo Shut off valve’, probably what you are referring to but not called the CSOV perhaps? Ash
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2022 SDV8 AB
2016 TDV8 VSE
2011 TDV8 VSE
2006 V8 Vogue
2002 2.5 Vogue

Have a look at these pictures.
First shows valve correctly fitted.

Click image to enlarge

Click image to enlarge

Thanks Kevin

It seems I do have the valve.

Mine is very dirty and full of oil so difficult to make out much. Could you point me to the rubber bung and, given how easy it is to check, I’ll go take a look.

Question if I may, should I replace the o ring given I’ve removed the filter - I think they should be changed each time - or am I ok on this occasion to not worry about it. Ash
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2022 SDV8 AB
2016 TDV8 VSE
2011 TDV8 VSE
2006 V8 Vogue
2002 2.5 Vogue

comports wrote:

Hi Dtech

The first diagnosis was the ‘Secondary Turbo Shut off valve’, probably what you are referring to but not called the CSOV perhaps?

It's at about ten o'oclock on my pictures.
First picture shows the bungs locating tab poking through spring plate.
Second picture shows the hole it closes.

Hmmm - Thanks Kevin

I’ll look tomorrow now but I have a feeling it was a hole on that side of the ‘spring’

Your 10 o’clock is my 7/8 o clock and that is definitely a hole I have in mine….

If it were missing a bung, what would that mean/do?

I’ll assume I could get a replacement but will check to see what I have first. Ash
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2022 SDV8 AB
2016 TDV8 VSE
2011 TDV8 VSE
2006 V8 Vogue
2002 2.5 Vogue

Reading your other post on this Kevin I thing you have just found the cause of my losing oil.

Do you know where I’d get a new ‘bung’ or spring assembly?

Not sure it will resolve the restricted performance but will save me some oil. Come to think about, I noticed the oil light coming on last year about a month after I had the car serviced (oil and filter change) - could have been dislodged back then. Ash
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2022 SDV8 AB
2016 TDV8 VSE
2011 TDV8 VSE
2006 V8 Vogue
2002 2.5 Vogue

Somewhere on this forum somebody said that they had had some made. Have a look in the for sale section.