Okay quick update. I have a leaky Turbo Charger. They told me it was a Garratt Turbo and common issues with these are as they wear out they develop play in the shaft, also my trust bearings are gone and.... (yes, the Turbo really is dead!) the seals have gone bad. All of this allows oil to come in and sit on my Turbo, then when I start it the engine throws it out the back of the car, at the moment its a small amount so only when the are is standing for 12 hours (Overnight) or more will I see smoke, if i do lots of small runs around town then I get a HUGE cloud to start with on first start then the rest are clean. So makes sense.

Hope that info might help someone.

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BMW X5 E53 3.0 Diesel Sport | Sapphire Black Dakota Beige Leather interior | Year 2004

What I had updated
Carbon Effect Steering Wheel
Panoramic Sunroof Fix
PVC Replacement
All glowplugs and glowplug regulator
New discs and pads all round
All new front suspension links, bushes and rods