Worn nozzles in a Common Rail engine?

Hello,

I've been increasingly wondering about this lately: are there any experiences regarding wear and tear with the aforementioned nozzles?

In practice, I have the following experience: W203 220CDI, mileage 300,000 km, soot development is completely unacceptable, the AGR is verschandeln and air mass etc. is all plausible regarding the load position. And with the 307, the display has been showing 6.0 l/100 km recently, while filling up, it calculates 5.1 L. Initially, the display was perfectly accurate. Also, the particulate filter clogging has increased, where it used to only have its natural cycle after 700 km (i.e., regenerated after KM), but now it regenerates after 500 km because the load is too high (the filter is first back-spolled). Okay, AGR is faulty and the air mass is also within the specified range (factory settings for testing).

The nozzles on the DI Diesels must, to a large extent, experience similar loads. This raises the question of how the wear is similar. Are there perhaps any experiences in this area?

Is there any compatibility between the VP TD nozzles and any CR systems? At least visually, the VP-DI nozzles look the same as my Bosch CR1.

No, they are two different systems. Firstly, the injection pressures are different (max 1000 bar VP/ =>1600 bar at CR), and also the materials are different. Not to mention the geometry and the structure.

bastion wrote:

No, they are two different systems. Firstly, the injection pressures are different (max 1000 bar VP/ =>1600 bar at CR), and also the materials are different. From the geometry and construction alone,

Installation angle and aperture size, as well as focal length, etc., I initially consider to be negligible factors, as there are plenty of options.

I am also aware of the issue with the carbon buildup at the CR nozzle, perhaps that is also the cause of the wear.

I have a few Bosch part numbers for 4-valve engines, maybe someone can use them.
"DLSA 144 P 890 / UT" must have been manufactured somewhere in Germany, according to the label.

As I mentioned, I am primarily interested in whether there are any demonstrably different or similar aspects that can be defined. The fact that the wheel is constantly being reinvented is something that manufacturers mention repeatedly, so I don't pay attention to various press reports on that.

It's frustrating, and above all, questionable whether a similar problem will occur as frequently as some believe, and whether there will be a market for it in the foreseeable future?

Hi,

I don't have any personal experience; however, if I look at the taxi fleet, I believe that the injectors have a certain half-life. Anything that is a CDI and relatively well-maintained, runs like a Russian vegetable truck. I always wonder how the carrots manage to get their {MONTHLY} allowances every {YEAR}.

Greetings from Berlin

olli