Vw Passat B5 FL AVF engine - Intake problems - hole and full of oil.

As in the topic - this engine brings me to the so-called shoemaker's passion, it is clearly audible that air is escaping from the intake somewhere, notlauf enters, but I have no idea where from. I will add that the previous owner microchipped it and probably loads more than normal. Both lower snakes replaced a couple of months ago. You can see that the oil is dripping somewhere under the S connection from the intercooler to the plastic inlet, but the hose removed and viewed many times does not look damaged (in the lower ones you could see white reinforcement threads in the place of damage) or this plastic has some weak spots? intake check? You cannot hear or feel anything without a load when stationary. The next thing that worries me is the large amount of oil in the inlet - about 100ml of oil is lost every 1000km and I suspect that 90ml is running out of the inlet, all joints are pouring and there are 3 oil dots in every place where it parks. Can you do anything sensible with it? Is it the fault of weak rings or what is it? Thank you for any help on the topic.

First, check the engine venting (odme), it can do a good job. Secondly, the turbine. It can overload and leak - drains oil.

Well, replace the IC. When he gets pressure, it unseals. You can't catch it at idle.

The turbo was regenerated a few months ago, it certainly spits oil, but what can you do about it? I read everywhere that this is the case and even after replacing the cover in a few months it is the same. As for the IC, maybe it's a good lead, but there is not even a drop of oil on it - and I think it should be if it was going that way.

Look for a problem in the tightness of the engine.
See if any compression is getting through the unit injectors or valve guides. Eventually, compression can leak through seized, leaky piston rings.

Somebody22 wrote:

Look for a problem in the tightness of the engine.
See if any compression is getting through the unit injectors or valve guides. Eventually, compression can leak through seized, leaky piston rings.

Is it going to be measured / checked somehow? Do you just have to replace the seals and rings and see if it helped?

Google: Oil Test.

Compression measurement on individual cylinders through glow plug holes. Then you just repeat that with a little bit of oil added to the cylinder. But the unit injectors are often leaky.

A small update - I located a hole in the inlet, it turned out that the turbo pipe on the front has a hole for 2-3 fingers, even though it was replaced a few months ago ... . Now, the question - can it be replaced without disassembling half the car? I can pick it up at work and even put it on pallets, tools and workshop facilities without any problem.

You will make your task easier by lowering the front belt into the working position. But this hole is more likely to come from something. In general, rubber does not like oil. Perhaps the steering wheel in the grandstand is seized or badly adjusted.

Somebody22 wrote:

You will make your task easier by lowering the front belt into the working position. But this hole is more likely to come from something. In general, rubber does not like oil. Perhaps the steering wheel in the grandstand is seized or badly adjusted.

Is it possible that the intercooler gets clogged? What is there to do, then, to correct the factory with some relief valve?

electro_Nick wrote:

Is it possible that the intercooler gets clogged? What is there to do, then, to correct the factory with some relief valve?

Possible oil clogging. Then you can rinse it, ie Wash it, for example, extraction gasoline, etc. Dry it later. It is best then to wash the entire intake. But that excess oil somehow gets into it. Zaturbin is normal with some oil vapors. But if there is too much of it, it is a problem. I have given you possible information on how this oil can get. The simplest is an emphysema, but the turbo can also pour oil. Generally, if there is too much oil in the inlet, it is even possible to do so. engine self-ignition.

Somebody22 wrote:

Generally, if there is too much oil in the inlet, it is even possible to do so. engine self-ignition.

Runaway, not auto-ignition

Check the air guides in the turbine, if they are dirty, it will also overload.

sk700 wrote:

Somebody22 wrote:

Generally, if there is too much oil in the inlet, it is even possible to do so. engine self-ignition.

Runaway, not auto-ignition

Exactly. Because self-ignition in diesel is its principle of operation

Turbo, as I wrote, was regenerated six months ago, so the oil is most likely from a pneumothorax, because even on this valve connecting odme with the intake there is oil. If I have to replace the charging hoses every three months, thank you for such a dumper. This is how I look, without pulling the front of the intercooler I will not pull it out, unless I simply disconnect it from the hoses and rinse it with the extraction one. Overall never again VAG ...