Hello everyone, Ive been having a few issues with my recently acquired 2006 Octavia 2.0 TDI, the more pressing of which is a turbo charger issue. (The car has 100,000kms ~ 60,000 miles)

The issue began with a loss of power at the lower gears and a noticibly louder whistle/sucking sound on acceleration. After taking a closer look, I noticed oil splattered around the rear of the engine.

I took it to the VW/Skoda dealer for a diagnosis and they told me the exact part that needed replacing, so I ordered it intending on doing the work myself. Here is a comparison of the part I pulled from the car and what I recieved:

Do tell, Am I completely incompetent? Did I pull the wrong part?

I apologize in advance for my ignorance (Especially on TDIs) - please be accomodating with your responses!

More on the problem:

• Reduced Power
  
• Increased Noise (Sucking/Whistle)
  
• Engine "Coughs" or "Studders" on acceleration sometimes
  
• Oil inside of the pipe connecting the air box to turbo
  
• Oil collecting underneath turbo itself
  
• OIl inside of the turbo (Intake side)
  
• Particle Filter light recently turned on in the dash
  

Thanks for any help you can provide!

Edited 23 June, 201312 yr by Im Cereal

Without looking it sounds like the turbo itself has failed. If Skoda think they can fix it with a new peice of pipe then let them get on with it but don't hold your breath be prepared for a return visit.

Edited 23 June, 201312 yr by 07 vRS Taxi

I thought it was unusual that they would recommend I replace a pipe that carries air to remedy an oil leak - it was the wrong part anyway (Right? Or is it meant for somewhere else?).

What else should I look for to try to rule out a bad turbo?

Here is some oil on the intake side. Ive read some oil is normal though, isnt that correct?

The oil sprayed on the firewall and under the turbo is probably another story....

Edit to add: the car does quite a bit of shaking when idleing as well. A result of the partially blocked particle filter?

Edited 24 June, 201312 yr by Im Cereal

It could be a revised part but if it doesn't fit it's the wrong part. The red pipe looks ok to me is it not? Anyway as you say intake pipes don't carry oil and as I said it sounds as if it's time for a new turbo.

Symptoms are usually whistling from worn bearings, play in the turbine shaft, loss of power, blue smoke and oil in the intake. Is the oil under the turbo not coming from the oil feed pipe? Maybe it's leaking and that's the pipe Skoda wanted to change but when you took the intake pipe off you discovered the oil seals are failing?

Maybe the fault started with a leaking oil feed pipe resulting in a low pressure feed to the turbo which could've worn the (whistling) bearings causing play in the turbine shaft which has damaged the oil seals due to it wobbling abit.

Edited 24 June, 201312 yr by 07 vRS Taxi

If one of the air pipes splits or pops off it can cause many of these symptoms, even down to a certain amount of oil splatter as its normal for some oil to find its way past the bearings of even a healthy turbo, through the intercooler and into the manifold. Plus the engine breather usually feeds into the air intake pipework before the turbo and adds further engine oil fumes into the mix.

However, as said above, there doesn't look to be anything wrong with the hose you've removed! Was the hose attached tightly at both ends before you removed it?

Unless I am being a bit thick that red hose doesn't look OEM and seems to be a different fitment, which makes me think that either the pipework has been replaced with non-OEM, the turbo has, or both. Expect some oil on the boost side of the turbo, but not loads or there is a problem.

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Unless I am being a bit thick that red hose doesn't look OEM and seems to be a different fitment, which makes me think that either the pipework has been replaced with non-OEM, the turbo has, or both. Expect some oil on the boost side of the turbo, but not loads or there is a problem.

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I think you're right, a VAG connector from a non-standard turbo bodged onto a generic piece of red hose to make it fit.