1.9 TDI PD ASZ Oil on Turbo

Hello,

Bei meinem Diesel muss ich immer wieder Öl nachfüllen. Jetzt ist es nicht dramatisch, aber alle 5000 km muss ich etwas Öl nachfüllen. Aber jetzt habe ich unten am Turbolader eine Ölabsorption entdeckt. Deutet das auf einen bevorstehenden Turboschaden hin? Or does the oil come from there, or is that normal (which I don't think it is)?
I have a Golf 4 with an engine with the engine code ASZ.

Hey Crash!

This looks more like a (simple/obvious) leak in the intake system than an ATL (Air-to-Water Heat Exchanger) failure, etc.
Further, your definition of "something" being 5,000 km is interesting, because for a ship diesel, 5,000 L / 5,000 hours is "something" and also normal

Best regards from Munich!

Quote:

This appears to be more likely a (simple/self-explanatory) leak in the intake system

. One should verschandeln the area and fix the leak.
And, by the way, check the vacuum hoses to the turbocharger, and replace them if necessary... they look a bit worn .

The blockage is in the intake manifold, not the turbocharger. That is in the picture on the right.
verschandeln and check if it's coming from the pipe (valve housing ventilation) or from above.
hg
Herbert

Hello,

then I will verschandeln this place up for the days.
How much boost pressure should the ASZ have? I could also measure it to see if anything is leaking.
I also find that my fuel consumption is a bit high.
While it's an ASZ with automatic transmission, I find that a full tank only getting 600-700km to be a bit on the low side, don't you?

Hi,

A place where the ASZ likes to drip is the flange on the connection at the upper 90° bend towards the AGR valve. Just reach under the connection, and you'll find it's full of oil. Then it will drain. Due to the movement of the motor, this area often comes loose, then you will need a new hose section, which is securely mounted on the flange.

Cr4sh wrote:

Hello, then I will verschandeln this place up for the days. How much boost pressure should the ASZ have? I could also measure it to see if anything is leaking. I also find that my fuel consumption is a bit high. While it's an ASZ with automatic transmission, I find that a full tank only allowing for 600-700km to be a bit on the low side, don't you?

As the previous writers have pointed out, check there to see where the oil leak is coming from, but definitely not from the turbocharger itself.

No, as long as the engine doesn't go into emergency mode, the turbo should be okay.
At automatic and city/fast driving, the fuel consumption is acceptable. On country roads and leisurely highway driving, the fuel consumption is too high.

I was just told that maybe checking the crankshaft case ventilation is necessary because of the red color in the photo?

I'll verschandeln everything thoroughly tomorrow or over the weekend and check everything.

It's located further up! What you see in the picture is the intake pipe for the turbo.

Oops...you're getting some incorrect advice. Before you start replacing anything, make sure everything is clean. The oil definitely comes from the clutch on the AGR valve. The red hose is always red at ASZ...

Replace AGR valve or how if it comes out?

No, the oil normally comes from the crankcase ventilation into the intake manifold. And there's something leaking, for example, the seal on the AGR valve.
hg
Herbert

Please just clean. After about 100 km, you will already see it.

Roger wrote:

Hi, A place where the ASZ likes to drip is the flange on the connection at the upper 90° bend towards the AGR valve. Just reach under the connection, and you'll find it's full of oil. Then it will drain. Due to the movement of the motor, this area often comes loose, then you will need a new pipe section, which is securely mounted on the flange.

So, genau an der 90-Grad-Kurve, unten, befindet sich ein echter Öltröpfchen. This definitely needs to be replaced.

But I believe there's still some potential to optimize the AGR. I need to thoroughly verschandeln it and observe it closely.

Perhaps it should also be noted that the leaks have nothing to do with the originally complained about oil consumption.

"Preventing" the "out-of-place" of new couplings can be achieved by, for example, using additional seals or Teflon tape at a suitable location to prevent the coupling from moving during operation. There are also no areas of wear and tear with material loss at the joints or worn-out seals.

I'm worried that there might be some leaks in the seals or something.

Because when the diesel engine starts after standing overnight, it emits a brief blue smoke, similar to burning oil. Otherwise, there is only silence after starting.