A4 TDI 2.0 PD spritzen keinen Kraftstoff ein nach ZK-Tausch | Posts 32+

I bet you gasped when he jumped.
Please read the following if you want the run to end again:

https://www.turbolader.com/pages/faqs/vtg-und-vnt-nur-neu.php

then here is also the view of the Garrett Honeywell company itself on the topic of overhauled VTG blowers, specifically page 2:

https://www.turbolader.com/media/051006%20-%20Presskit_DEUTSCH_EA2005_VNT%20repair%20-%20a001.pdf

However, the injector doesn't just have a plunger that presses directly on the ball screw, does it? Something like what's in the Elring 900.650 seal kit would be readily available and inexpensive. In that case, the existing injector could remain in place.

ascendens wrote:

and how is PDE General overhauled? Are they also not recommended, before I order, has anyone had experience with them?

no, not very good. I once bought a brand new PDE at an auction in its original VW packaging. There were no signs of installation, yet there was an additional +2.99 mg in the LLR. It ran perfectly even when idling.
Then I bought one from Bosch and replaced the new dowel pins and did that. The engine then ran perfectly, but the valve cover was no longer airtight. I also had to replace the entire gasket set. After that, my engine was finished.

To make it concise:
There are new and replacement parts for Bosch from PDE. This is similar to parts for starters or alternators.
And there are also updated PDE versions from less well-known sources. This is similar to the case with the chargers.
Personally, I only use PDE parts from the Bosch spare parts program since the incident. And only if the packaging is unopened. The boxes are sealed with a silver seal. If they have already been opened, I don't accept the parts at all and order new ones. Then the car just has to wait for another day. Since then, I have never had any problems with the injectors again.
You also have to realize that each of these interventions costs Dehn screws, and the thread on the clamping plate doesn't last forever either.
Furthermore, the valve cover will not seal properly if it is constantly removed and reattached.

Thank you for your experience, I will only buy parts from specific brands in the future. I have now reassembled everything and made a test drive . When I press the gas, it smokes quite heavily, could it actually be the turbo? It has also been smoking before, which is why I replaced so much, but I noticed that the turbo was completely oily on the exhaust side. When I replaced the turbo after 250,000 km two years ago, there was no smoke or anything, but it started smoking more last half year, since the engine now has almost 300,000 km, I replaced the head with everything that goes with it, but not the PDE's, which were still working fine until then. I have a few more values.

Hello,

The multitude of screenshots, at least for me, only makes limited sense, as they represent a snapshot at a particular moment in time, without clearly indicating what other conditions were in effect at that time.

Therefore, we have the great opportunity to stop logging here.


However, finding a leak in the turbocharger's wave might not be easy, even from the log data.


You're always swapping entire groups. So, I understand that the existing turbo only came on board 50,000km ago? Is it also a "restored" example?


If there is a significant loss of oil on both the suction and pressure sides, and ideally the shaft has a noticeable amount of play, then the component is likely damaged.

Yes, exactly, before 50Tkm, and yes, a new part, but from a third-party supplier, so not an original.

I just took a test drive today and there's always an extreme cloud of smoke when I accelerate. Also, there's a loud howling sound when I accelerate, and the turbo seems to be malfunctioning. The shaft also has a lot of play. I'm going to do a data log to see if that helps. I'm still relatively new to VCDS and need to learn a lot more.

Did you see that?
You've also written about the injector. I might first get the fuel injection system working properly and then check it again after that. And then, if necessary, I'll start working on the turbocharger.
If you're lucky, it's just the stem under the ball screw.


What does "viel Wellenspiel" mean? Is there just a slight play, barely perceptible with the finger, or is the shaft rattling inside?
Minimal Games must have without oil pressure.

Ja ok, aber ich verstehe das nicht ganz, ich habe alles erneuert, die Schrauben, die Stössel und Dichtungen, dann habe ich mit einem Messgerät den tiefsten Punkt ermittelt, bis ich einen spürbaren Widerstand verspürte, und dann 180 Grad wieder herausgedreht. Where could I have made a mistake

The significant discrepancy was noticed in Cylinder 3, but I'm unable to resolve it. So, the valves, pistons, crankshaft seals, camshaft, and bearings are new, but the roller rocker arms are still the old ones; they looked okay.

[Zylinder, the]

I believe I understand, please correct me if I am wrong.

So, 4 neue Originaldüsen kosten mich über 2000€. Ich werde 4 gebrauchte, aber überholte Düsen vom Bosch-Service kaufen. Ich denke, es gibt auch hier Unterschiede, auf die man achten muss, oder gibt es bestimmte Dienstleister, die man aufgrund von Qualität und Zuverlässigkeit bevorzugen sollte?

Ugh, you're really exhausting. Why on earth do we need to replace 4 elements? You have the diagnostic system. One appears to be abnormal. Mechanically check. If everything is really okay, there must be an internal defect. Then, exactly this one again, and that's it.

However, since you have clearly invested a considerable amount of €€€ in all these exchange activities, and I don't know your financial resources, I would like to raise a point and start considering whether this makes sense. If you have virtually unlimited financial resources, buy a new car. This seems to be more advantageous in the medium term. By "new," I mean brand new, not used. If you're aiming for a repertory that's up-to-date, take a look at what people are writing here.


Even if a TL only lasts 50,000 km, consider your spare parts acquisition methods. Even a worn-out original part appears to be better.

Okay, then I'll replace PDE 3, hopefully that's fine. Thanks again.

Does it not run unevenly due to the deviation? Was it also like this before the surgery?
If you see nothing externally when manually rotating, then measure the compression. Specifically, the compression of cylinder 3.
If the target value is not achieved, you should not buy a new PDE yet, but continue to look for the problem in the engine mechanism. Most likely, it will be in the area of the cylinder head. If it is achieved, then take the rear camshaft down again and, for testing purposes, swap the PDE from cylinders 3 and 4. You don't need to fully rev the engine to test. Then, read the LLR values again, and if the high deviation has followed cylinder 4, then you can consider buying a new injector.
So, this is just a suggestion for a possible approach...

Hello everyone!

Steffen W wrote:

So, this is just a suggestion for a possible approach...

This is not just a suggestion but the absolutely standard and mandatory procedure

@AsceDings, before you suddenly think of another broken thing you can fix, please have a WeißBiah. Keep going until you can't think of anything else!
Otherwise, only Ritalin and/or handing over the vehicle to someone more responsible

No, seriously:
That would be all the important information that seems to be missing from you here, and also from your logical approach
Was war der Grund, dass der alte Zylinderkopf vor der Demontage noch unauffällig war, und warum wurde der Kopf genau ausgetauscht? War es auch eine Art Vorsichtsmaßnahme, oder gab es beispielsweise eine Rissbildung im Kühlwasserkanal? Zylinder 3 missed the water impact??

Best regards from Munich!

DieselBär30x wrote:

Hello everyone! Was wäre zum Beispiel, ein Riss im Kühlwasserkanal, der vielleicht... Zylinder 3 missed the water impact?? Best regards from Munich!

It is, however, far from certain that things are actually as they appear.
But the theory is not bad. It fits the error pattern and also the key letter.