I've been fighting a loosing battle with my 2012 4.4 tdv8, trying to get on top of all faults it came with when I bought it last December, main focus has been water and oil leaks which I finally fixed about a month ago.

Latest issue developed as the DPF getting blocked on a weekly basis, that's now gutted and tuned out, however I think the issue was the secondary turbo leaking oil which was blocking it. The car suffers from the trademark cloud of smoke when it comes goes over 2.5k however it pretty much does it every time so oil has clearly been getting into the exhaust in significant quantities.

Today when it dropped a gear going uphill pulling my trailer it sprayed oil all over the back of the car and trailer, see image, it was running down the back window and dripping out the exhaust. I'm hoping that the issue is a blocked breather however i suspect the seals have completely failed in the secondary turbo. It is still pulling normally up to 2k however I avoided going above that for the rest of the day as everything is already coated in oil.

Suggestions? If it is a turbo how complicated is the secondary to replace?

Click image to enlarge

I would check that the oil filter drain back spring and plug that is directly below the filter element is on it's post. Easy to check first.

Thanks, hadn't heard of that, will need to investigate

Not just the turbo drain mod needing done, is it?

I think it's beyond that as oil is running out of the exhaust. Are there any guides to removing the secondary turbo?