Gehäufte NW-Schäden bei PD-Motoren? | Posts 32+

Hi Wing Master,
great report. However, I was also hoping to see potential cost savings, like you. Maybe you'll notice it after all.
Could you please provide more information about the replacement part costs and the procedure?
How big should a US bathroom be? How long does it take to verschandeln the PDE?
Have you made a new setting after reading the article here in the forum? Time spent on everything was?
Thank you, haithamina

Hi wingmaster!

Thank you for your report, well explained. Also without photos.

Greetings!

This wear pattern looks very familiar to me. I've seen it before in older engine generations. JP, RA, 1Z..

The cause is the exceeding of Hertz's pressing, which leaves traces on the hydros. It inevitably leads to breakdowns and the wear of the valve. Most often, the hydro is the problem. The extreme acceleration of the valve without corresponding damping through the valve clearance adjustment plus the oil film leads to these phenomena. Even a dilution of oil can create such a wear pattern.

Best regards,

Hello!
I'm new here, but I've already gained some experience with TDI's!!!
I recently saw two cases where this NW (Northwest) damage occurred, and they were repaired.
Both had a defective oil pump!!!
Regarding the oil pumps, the drive mechanism used a 6-sided shaft, which was damaged! During the oil pressure check, nothing seemed amiss, but during full load, it appears the crankshaft slipped...
It took a long time to notice the error!
Greetings
Isibo

Isibo wrote:

Regarding the oil pumps, the drive mechanism used a 6-sided shaft, which was damaged! During the oil pressure check, nothing seemed amiss, but during full load, it appears the crankshaft slipped...

Hi,

That's an interesting story!
According to which standard did you check the oil pressure?
Alternatively, are there data on the achieved oil pressure at high speeds with a healthy and a faulty pump?

Hello Ulf!
We only discovered the issue with oil pressure at high speeds when we disassembled the pump due to blue smoke! But I have also heard about many problems with oil pumps.
It doesn't necessarily have to be related, but it's worth a try!
Problems caused by tuning, or using the wrong oil, have also occurred in the past!
I know a case where someone did their own oil change and put some cheap stuff in for just 5.99€ for 5 liters!

scroll tdi wrote:

It's also possible that there will be a temperature. The problem is that 505.o1 oils are still being developed and sold. That also means that the 507 00 in 5W-30 may not always include the 505.01 completely. . 505.01 is now also available as C3 oil in 5W-40, and sometimes even has MB229.51 approvals. Therefore, all oils on the market are still available. 5W-40 in 505.01, used quality, with sulfur. Bsp Fuchs TITAN SUPERSYN PLUS 5W-40 5W-30 in 505.01 in C3 (Shell and Mobil) 5W-40 in 505.01 with C3 (Castrol and Fuchs) 5w-40 in C3 is not available from all oil manufacturers (e.g., Shell/Mobil)

Hi zum Öl,
since I'm currently buying the 50700, which should also have the 229.51:
The 229.51 specification requires a certain level of fuel saving potential compared to the 229.3, so the thicker 5W40 is likely to be phased out by VW, especially since it has already been replaced by 5W30 with the 50700 specification. Ford has only been using 5W-30 oil for the past 30 years.

I'm familiar with the oil pump problem. However, this only applies to VAG engines with balance shaft modules.

The initial versions had the already mentioned hexagonal shape that rotated around.
Later, the conversion to the gear version was carried out.

However, there are also problems here. My car had a worn-out timing belt after 90,000 km.
According to the VAG measurement, the oil pressure was normal, but the pump was replaced as a courtesy due to the wear pattern.

Quote:

Problems caused by tuning, or using the wrong oil, have also occurred! I know a case where someone did their own oil change and put some cheap stuff in for just 5.99€ for 5 liters!

Well, let's be honest and admit that the materials and construction are simply no longer up to par. Nowadays, when you take something apart, you only see junk and cheap plastic.
One can't really be surprised by this.

The manufacturer then simply blames it on allegedly inferior engine oil, instead of looking for the fault within themselves.

An oil pump that fails with "normal engine oil" is only good for a lawnmower...

I just had a similar case: BPW with significant damage. I'll post some photos once I've disassembled it. The symptoms were sporadic episodes/jerks, see also.
/viewtopic.php?t=25599
The car has been inspected and certified. at Audi

So, let's revisit the disassembled Audi: The pictures match those already in this thread. The NW (Nitrogen) valves and pistons are worn. The piston in the AV (Auxiliary Valve) of the 4th cylinder was so worn that it already had a hole in it. As a result, the oil pressure would sporadically fail (depending on the position of the hydraulic system) and the AV would remain closed, allowing the compression to escape into the intake area. Therefore, the limited volume is also a factor.

Since I have the same engine, the pictures of the camshafts would be very interesting to me.
Can you post it here?

What was repaired and what did it cost to fix the damage?