So, I've now done 7,000 miles since I bought the car and I have noticed one potential thing.

Occasionally, under heavy acceleration, I get a light amount of light blue smoke out the back. The conditions under which this seems to happen is when I give a sudden bootful of throttle and the engine reaches 3,000RPM or more.

Reading the workshop manual, the secondary fixed vane turbo comes in at about 2,400 RPM. Given the engine hardly ever goes over 2,000RPM in normal driving, and no issues with any smoke on the primary turbo and normal running, this says to me that I'm getting the small amount of light blue smoke from oil burning when the secondary turbo is boosting hard.

My immediate thoughts would be that the oil seals on the turbo are worn and it might be worth considering a recondition at some point down the line. However, I'm aware there was an updated oil drain hose design released by Land Rover and restricted drain hoses can cause this issue too? My third theory is that the turbo is probably hardly ever engaged and therefore, the first few times it does get engaged, it might burn off some drips of oil which have collected and once it's hot and at operating temperature, the light cloud goes away (which it seems to) - all age and mileage related and nothing to worry about and I should do an Italian tune up more often.

Other people's experiences? It's used approx 400ml of oil (this being Land Rover, also includes any inevitable leaks) in 7,000 miles (assuming the digital meter is accurate). 2015 Range Rover Autobiography 4.4 SDV8

Don’t get worried, just make a point of getting the revs up above 2,500rpm every now and then.
This will clear any oil from the secondary turbo , but obviously leave a blue smoke cloud as the burning oil is passed through the exhaust.

Mine was a very heavy smoker , virtually from the day I bought it, but I was fortunate to get JLR to fund the turbo drain modification, which completely cured the smoke problem.

You can expect to pay c£1k if you want the mod done by a respected independent garage.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

I did suspect it may be oil collecting in the turbo, where it's not regularly used and therefore, there's no charged air to keep the oil within its channels. 2015 Range Rover Autobiography 4.4 SDV8

Another benefit of getting the second turbo spinning is the the CSOV air change over valve is prone to sticking due to lack of use, particularly if it has not been replaced with the later modified type.

If you look down between the back of the radiator and the front of the engine you can easily see the valve.
If it has got a nut on top of the spigot it has not been replaced, but no nut you have the new version.

Click image to enlarge

Gary: I had similar issues but not exactly like yours. After I got a little excited on a slip road & passed everything in sight, the dreaded Restricted Performance light came on.
Long story short, the CSOV actuator rod has gummed up due to lack of use & when the Indie took it apart & cleaned it, it worked perfectly. He did say, that on several test drives afterwards he couldn't see who was behind him because of the smoke trail.
Now when she sees 2800-3000rpm she's as clean as a whistle. He advised me to hit the 3000rpm every now & again to make sure the second turbo comes in, I do & so far she's as clean as can be.
Hope this helps. 2012 Orkney Grey Westminster 4.4TDV8 with Ivory interior.........nice!
BMW R1200GS
Alfa Romeo Giulietta
Just one Montesa now, 349 White Wonder
Austin A40 Farina MK2
1975 Morris Marina 1.8TC

Easy fix = Boot it more often when warm. I do it every time I drive it and never see smoke and mine doesn’t have the turbo drain mod
It was fitted for a reason, use it  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

Yes, I try and get my second turbo spun up every journey, once it’s warmed of course. Not had the turbo drain mod…. No issues….

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

I shall stick her in sport mode and do an Italian tune up more often then! 2015 Range Rover Autobiography 4.4 SDV8

 Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------

A different question but on the same theme. Is there a way to toggle the cruise control with a speed limiter? I really miss being able to plant my foot in my Mercedes and never go faster than the limit I set for that road. 2015 Range Rover Autobiography 4.4 SDV8

No, it won’t do that. It will only Bong and issue a warning as you pass a predetermined speed previously set by yourself.

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Gary: I've never used 'sport' mode, just select a gear with the paddles & gently run her up to the desired rpm....2800-3000 even at those revs, she still doesn't sound stressed!  2012 Orkney Grey Westminster 4.4TDV8 with Ivory interior.........nice!
BMW R1200GS
Alfa Romeo Giulietta
Just one Montesa now, 349 White Wonder
Austin A40 Farina MK2
1975 Morris Marina 1.8TC

I don’t even do that, I just press the accelerator faster and a bit further than normal and it changes down. I hold my foot there to stop it changing up till you run out of road lol.

Though in all seriousness, as long as you get it spun up it doesn’t really matter how. I don’t use Sport mode much.

I do find the paddles offer a quicker change down if you want a quick overtake though.

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

At 50mph in D, drop it down 2 clicks on the "-" paddle and away you go! Shift up with the "+" paddle as you reach 3000rpm Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
--------------------------------------------------