How to Clean: Tips & Tricks | Posts 16+

Hello Kane326,

I also have a few more questions.

Did you encounter any problems due to rust on some screws (e.g., AGR valve, exhaust manifold, exhaust pipe)?
2. Were you able to easily remove the screws from the turbocharger (oil line, turbine housing, and the Allen screws of the VTG mechanism), or did you encounter any problems?
3. How did you verschandeln the engine? Did you use only chemical cleaning agents, or also sandpaper?
4. Were you able to identify the cause of the hot connection?

5. I believe Klahaui meant the following when he mentioned "rust formation under the glass":
If you remove the VTG adjustment ring from the housing (using 3 Allen screws), you will see a flat metal surface (a disc) inside the housing. You will usually see marks on this surface where the VTG wings were located.
If you remove this disc as well, there may also be rust underneath, which could then push the disc upwards.
Did you remove this disc?

See also:
Okay, I'm ready. Please provide the German text you want me to translate.

Holger247 wrote:

Hello Kane326, I also have a few more questions. Did you encounter any problems due to rust on some screws (e.g., AGR valve, exhaust manifold, exhaust pipe)? 2. Were you able to easily remove the screws from the turbocharger (oil line, turbine housing, and the Allen screws of the VTG mechanism), or did you encounter any problems? 3. How did you verschandeln the engine? Did you use only chemical cleaning agents, or also sandpaper? 4. Were you able to identify the cause of the hot connection? 5. I believe Klahaui meant the following when he mentioned "rust formation under the glass": If you remove the VTG adjustment ring from the housing (using 3 Allen screws), you will see a flat metal surface (a disc) inside the housing. You will usually see marks on this surface where the VTG wings were located. If you remove this disc as well, there may also be rust underneath, which could then push the disc upwards. Did you remove this disc?

1. No, I hadn't, everything went great.
2. Unfortunately, the boot on the turbo rotated when opening it, causing it to get caught on the oil line. -> Remove the oil line and replace it.
When dealing with the 3 Torx screws on the VTG linkage, you have to be extremely careful. I had to re-tap the threads afterwards, luckily none of them broke off. I've had that happen before .
3. Gasoline, rags, kitchen brush. I removed the metal surface (plate) and first treated it with 180, 400, and 1000 grit sandpaper to remove the scratches as much as possible.
4. Well, I'd say... normal wear marks + rust underneath the metal disc.
5. See sections 3 and 4.