Fuel injectors for AAT

Hello,

I am still new to this forum...
If I ask a question that has already been discussed 1000 times, please feel free to point me to it, and perhaps provide a link where it has already been discussed...

Okay, I have a feeling that I should probably change the fuel injectors on my car soon (258,000 km).
I think that with such high engine output, a two-stage injection system and proper atomization simply aren't possible anymore (?).
(I have now read that a lack of atomization can even cause engine damage?)

What do you think about that?

'Der schnelle braune Fuchs springt über den faulen Hund.'

Now that we're already on the subject:
- Can this be done yourself (with some DIY experience)?
- Do I absolutely have to buy them from VAG (at their excessively high prices)?
- or perhaps it's better to buy directly from Bosch?
- or even third-party manufacturers.

What about the needle lift distributor?
'I have to buy this (expensive) part as well, because it's an (integral) component of one of the nozzles, right?'

'Der schnelle braune Fuchs springt über den faulen Hund.'

In various parts catalogs, I always see references to terms like 'nozzle,' 'nozzle insert,' 'nozzle holder,' and 'nozzle holder combination.'
What does that mean?
What exactly do I need if I only want to replace the nozzles?

'Der schnelle braune Fuchs springt über den faulen Hund.'

Sorry, there are quite a few questions.
but I think you can help me, with the accumulated expertise here .


Please provide the text you would like me to translate from German to English.

Dirk67 wrote:

Okay, I have a feeling that I should probably change the fuel injectors on my car soon (258,000 km).

... good idea ...

Quote:

I think that with such high engine output, a two-stage injection system and proper atomization simply aren't possible anymore (?). (I have now read that a lack of atomization can even cause engine damage?) What do you think about that?

... just as you described it ...

Quote:

Now that we're already on the subject: - Can this be done yourself (with some DIY experience)?

Yes.

Quote:

- Do I absolutely have to buy them from VAG (at their excessively high prices)?

No.

Quote:

- or perhaps it's better to buy directly from Bosch?

Yes.

Quote:

- or even third-party manufacturers.

Also doable.

Quote:

What about the needle lift distributor? "I have to buy this (expensive) part as well, because it's an (integral) component of one of the nozzles, right?"

While the nozzles can be disassembled, you won't be able to adjust them using DIY methods. You will need to exchange the NHG (National Housing Guarantee) (and I would recommend doing so for security reasons as well).

Quote:

In various parts catalogs, I always see references to terms like "nozzle," "nozzle insert," "nozzle holder," and "nozzle holder combination." What does that mean?

Nozzle - Complete part.
Nozzle insert - The internal part of the nozzle (needle, spring, etc.).
Nozzle holder - The lower part in which the nozzle insert is located.

Quote:

What exactly do I need if I only want to replace the nozzles?

The nozzle is complete. There's just no alternative to Bosch.

Quote:

Sorry, there are quite a few questions.

Okay... better than asking stupid questions.