Turbo Leak Repair: VW Golf 3 (1Z)

Hello.

I discovered a leak on the turbocharger. It's on the intake side.
What is the cause? Is there a leak at the shaft? The oil pressure line is located right next to it.

Image:
http://www.sammlerautos.de/turbo.jpg

The car runs well, and the turbo is noticeable. However, it already has 200,000 km on the odometer. Is there anything likely to go wrong soon?
When accelerating fully, you can see a slight amount of smoke in the rearview mirror. However, it's very minimal and only visible at night when there's a car behind you. In that case, the slightly hazy road is visible in the headlights of the following vehicle. You can't see it during the day.
If the seal on the turbocharger is leaking, oil could potentially leak into the exhaust side and cause the smoke.
Should I replace the turbocharger instead? A new catalytic converter is being installed soon, and I'm not sure if a potential oil leak on the exhaust side of the turbo could damage the new catalytic converter.

Thank you in advance for your opinions.

Best regards,
togu

It looks like your turbo is leaking oil.

They all do that, but the fact that it's already dripping from the compressor is quite a lot (my personal opinion - I just had my turbo out).

Loosen the intake pipe that connects to the air filter from the turbo and check if everything is still okay with the shaft.
- easily rotatable / swivels easily
- Under no circumstances should the bucket arms collide with anything!

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

"A certain amount of oil mist in the turbocharger boost hoses is normal and comes from the crankcase ventilation system. However, if the clamp is tight, nothing should leak out. How much oil are you consuming? Tighten or replace the clamp, check the hose for damage, and if your oil consumption isn't excessive, you probably don't have anything to worry about."
You can definitely find it using the search function!

So, my turbocharger was almost completely dry on the intake side.

Starting from the compressor OUTLET, there was already a noticeable oil buildup.

So, the oil is coming from the turbine shaft bearing.

Unfortunately, I took pictures of everything except the turbocharger (including the intake and exhaust manifolds).

In the photo of the turbo, there's so much oil that I suspect a problem with the bearing seals rather than a leak. Otherwise, it would likely be dripping at the connection to the turbo, where that increasingly narrow plastic hose connects (and there's no gasket there that can be replaced).

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

Hi,

So, my turbos were always dry!
I'd like to get a new job or ideally switch jobs altogether when the cat comes back.

Regards,
DJ.

Hello.

Thank you for the answers!

I'll check the turbocharger on the naturally aspirated side tomorrow to see if there's any play in the shaft or anything like that.
I will then submit a report.

Regards,
togu

Here are a few more (well-known) images from the turbocharger field.

http://www.luxus-wg.de/~martin/auto_bilder/Kruemmer/