Hi I have the same problem did you find the cause of the leak

Garymcduff1 did you find the spray leak in the end on this as I have an issue exactly the same and cannot find the source? Cheers Tom

Garymcduff1 wrote:

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Hi all, came across this forum whilst trying to research/locate an oil leak on my 2013 4.4 sdv8.i had the oil cooler gasket replaced back in December 2021 and all was well until about 6 months when an oil leak was noticed on a service. I got what seams to be an intermittent oil leak towards the front of the engine somewhere between the throttle body and drivers side valve cover, it can go days with no leak, then a slight leak and then lots dripping from everywhere under the drivers side of the engine, when it leaks it's also spray oil up onto the engine cover (lots of oil it's soaked) and the bonnet when cover removed. I've check all inlet pipes, egr, valve cover and anything else that can be tightened and tried looking for it whilst putting the car through different rev ranges but can't locate it. Not sure if it's related but when driving if I drive hard enough for the secondary turbo to kick in it blows a puff of blue smoke, but once the smoke has cleared i can continue to drive hard and no smoke. I don't think the oil leak is a turbo seal as the amount it's losing I'm sure the tailpipes would be constantly pumping out blue smoke so wondering if anyone has experienced this and have any ideas what's going on as I'm completely stumped now.

@Garymcduff1 did you find anything from what i mention above? any help appreciated.

Just as an update you can now buy LR orings as a part for the leaky Union.

lR part no is LR124504

Not sure if this has been posted or not but can be bothered to sift 38 pages to find out…… 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

At the price, I wonder who would buy one let alone 2!

But Graeme, you are forgetting it’s a GENUINE O Ring - worth its weight in gold 😂😂😂😂

Advanced factors do them at a few quid with that part number 👍🏻

https://www.advancedfactors.co.uk/lr124504-oil-seal 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

LR wants £24.01 each so it can politely FRO. 2012 Vogue TDV8 in Aintree green over sand

Less than £5 for 10 on a certain auction site. Viton BS611 - 8.73mm ID x 1.78mm C/S

I have some oil and definitely some coolant under this hose. It is the hose on the right rear side of the plenum.
I am not sure if there is an o-ring I could replace or I need to change the whole hose.
Can anyone help? what size is the o-ring? or any part number for the hose?

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