Car Owners Hub UK - Built by Drivers, for Drivers

After much troubleshooting, I managed to get my 2013 Mini Countryman S All4 up and running again, but now I can see smoke coming out of the exhaust. In comparison to dense smoke, I would describe it as lighter.
After replacing all of the valve seals, I let it idle for a while and believed the problem had gone away. However, now I'm getting smoke coming out of the exhaust again whenever I turn it on.
Is it reasonable to suspect these seals for allowing oil into the combustion process? I've detected a small oil leak in the front, which I would assume is coming from the turbo.


Do you have any suggestions about where I should start looking, or should I wait to see if the mileage improves the situation? (I haven't had the chance to get behind the wheel since I received it; I'm still waiting for some pieces to be reassembled before I can).

The second thing that stands out is that, during the first one or two seconds of cranking, there is a tremendous noise, as if a bearing were about to fail, but then it goes away and the car starts up without a hitch. Am I missing something here? I don't know whether this is typical for this model.

Finalised tasks for your review:
A Novel Power Source
Just Started
The Latest MAP Tracker
Replacement valve gaskets
Fuel Pressure Sensor Update
Valve replacement for gearbox
New housing for the radiator

The engine can be cleaning itself of exhaust residue if it was previously burning oil but isn't doing so after your treatment.

Make sure nothing else is leaking by conducting a thorough smoke test on the intake, exhaust, and each cylinder with the valves closed. If you find anything else, fix it. That will provide a solid foundation to build upon.

The same thing happened to me not long ago. What followed was substituted:
1. seals for the valve stems (I didn't take Mike1967's advice and did not use rings, but my daughter wanted it back immediately.)
2. Full equipment time chain FAI

OE oil pump 3.
Fourthly, a vacuum pump, a water pump jockey, a tensioner, an auxiliary water pump and a throttle body.
5. Thermo housing, plugs, injectors, coils, high-pressure fuel-pressure switches, vanos solenoids, oil pressure switch
6. The turbo oil feed lines, oil filter housing gaskets, and coolers
7. Slave, clutch, and flywheel.

Even so, the exhaust is a major source of water moisture for me. The usual? For 10 to 15 minutes when idle, this happens. Is it the usual? I suppose my question is this: is the "zemuz" experience typical?

One other thing to keep in mind is that following a vigorous drive, the level of coolant in the expansion bottle drops by one third. However, once it has cooled sufficiently, releasing the pressure puts it back up to its original level. The coolant system has been pressure tested up to 1.5 bar and has been found to remain stationary for several hours.

Could you give walnutting a shot? I haven't done it yet.

After finishing, the smoke was thinner and less noticeable, and after ten to fifteen minutes of idle, it felt more like vapour in cool air. Unfortunately, I do not yet have an after film to share. I recently got the automobile working again as a project; I don't know its history.