veränderter Abgasgeruch | Posts 16+

WarLord wrote:

Well, I also have a smelly engine.

At least, that's clear, but... what about the clatter...?

Quote:

Can anyone tell me where I can get cheap nozzles (I've already checked eBay)?

Ask Bosch Customer Service for assistance. These are often significantly cheaper than the friendly ones.

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Maybe I'll just leave the current sentence in until the timing belt replacement, and then replace it (then).

I think you can still wait a while - unless one or more nozzles are leaking - which could be dangerous.
How far are you in the process of changing your ZR?

Mc_Givertechnik wrote:

Listening to the warehouse is something I am quite familiar with from mechanical engineering. ... With a little practice, one can learn it.

In the field of mechanical engineering, yes, but not necessarily in high-tech automotive workshops ("...but there's nothing in the error code...").

Well, I also have a smelly engine. Can anyone tell me where I can get cheap injectors (I've already checked eBay)? Maybe I'll just leave the current sentence in until the timing belt replacement, and then replace it (then).

Best regards, WarLord

Last December, at the Bosch service center, I exchanged my 1Z for approximately 380 Euros.

I have a new flex tube, and therefore also a new cat (at 144,000 km).

Since then, my 1-bedroom apartment also smells a lot like CDI

I always thought that it was nitrous gases that had that chlorine-like smell.

m;

Bertil wrote:

This, incidentally, is not found in a scientific article.

Well, I must have picked that up somewhere else. Should actually work.
I bought a stethoscope just like that in a medical supply store (that's what they're called, right?).
Is also particularly helpful when you want to locate sound using air, and therefore cannot attach a screwdriver somewhere.
The new catalytic converter, which meets Euro 2 standards, has noticeably improved the smell in my car. But it still doesn't smell like a current model.

I have a Golf 3 AFN, 166,000 km, engine without a chip or anything, engine type EZ 8.96, the LDA always shows the same value (overruns to 1.2, settles to around 1 bar at full load).

I have a similar problem. The exhaust smells quite strange, definitely not like I'm used to. I noticed this because I had the car TÜVed last week and was already worried that the catalytic converter might be broken. But everything was perfectly fine.

However, this with the injectors is now making me curious.

How can I tell if my nozzles are damaged?

So far, I've heard about things like exhaust odor and 0.5 bar of pressure loss when the throttle is closed. Can this be confirmed?

How much will it cost to have my nozzles checked out at the Bosch service?

I should also add that the engine sometimes runs extremely rough. Even with slight acceleration, you can notice a jerk and a rough decrease in engine performance. Of course, this is most noticeable in the first two gears.

(Okay, but I'm not going to blame the devil just yet, at least it's still running relatively well . The interest is mainly for preventative maintenance.)

How much will it cost me if I go to Boschdienst and have my nozzles checked?
Yesterday, the guy wanted five euros for the coffee break.
Of course, he also provided the nozzles, which is obvious

CU Gremlin

Thanks for the reply.
It would definitely be more helpful .
The thing is that my nozzles are still installed, as far as I understand, it checks them in the disassembled state, and since I've read things like (thread for nozzles in the cylinder head broken after disassembly...) when I'm not completely wrong, I think I'd rather not do it myself.

Does anyone have experience with the cost including nozzle removal?

Oops, there was a problem with the screw!

Hello, exhaust sniffers!

I went to the Bosch service today and brought in my nozzles (of course, in their disassembled state) for inspection.
The result was alarming: The nozzle holder combination with NBF is quite damaged, meaning the nozzle needle is slightly bent, resulting in an opening pressure of approximately 200 bar. But that's definitely not enough, because I could only see 3 beams coming from the 5 nozzle holes, the others were completely blocked!!!
Furthermore, the other 3 nozzles are so worn that the opening pressure has decreased to as low as 170 bar. That doesn't surprise me at all anymore.

Considering that the signal from the difficult-to-actuate NBF is used for the fuel injection start control, and there is a difference of approximately 30 bar in the opening pressure between the nozzle that provides the return signal and the "normal" nozzles, it is very easy to imagine that the combustion process is quite off.

Furthermore, I am really worried that the piston of cylinder 3 might have already been damaged, because the 3 jets are definitely going further than if the flow rate is distributed among 5

I don't want to scare you, but if you suspect unusual engine noises or knocking on a cylinder, I highly recommend having the injectors checked.
By the way, the Bosch man was very nice and didn't want any money at all. I then offered him 5 EUR for the coffee fund, which he readily accepted after a brief hesitation.
I think the price-to-value ratio is already okay, or?

Greetings
Alex

How many kilometers does your car have on it?

Best regards, WarLord

The nozzles had run for just under 145,000 km. That doesn't seem like a very large amount, considering what a new DHK costs!

Greetings
Alex

What did it cost (the DHK)?

Best regards, WarLord

donalexo wrote:

I'm not trying to scare you, but if you suspect unusual engine noises or knocking on a cylinder, I highly recommend having the injectors checked.

Hi Alex,

That doesn't sound very good.
Why is your NHG experiencing these problems after only 150,000 km? It seems to be completely blocked.
Have you installed any new ESDs now?

I can only agree with your statement regarding the engine inspection.

Hi Bertil,

Quote:

Why is your NHG experiencing these problems after only 150,000 km? It seems to be completely clogged.

I would also like to know that. But unfortunately, you can't get inside. In the worst case, I imagine that the wear on the needle valve is caused by abrasion from this, and that this abrasion may have already sealed two nozzle holes. But it's just a guess.

"Well, the friendly Bosch employee said: "Ohhh, the nozzle is hanging!"

Greetings
Alex

Hello everyone!

Re-opened this somewhat outdated thread in response to recent events.

My exhaust smell is now comparable to that of a new car or a CDI again. It now smells slightly pungent and sulfurous again, just like a direct injection diesel

Now, you're probably wondering what has changed?
1) Brand new nozzle holder combinations
2) Relatively new, uniform pressure valves (approximately 37,000 km) on the fuel injection pump

If your TDI smells like a diesel engine, a tractor, or even Russian diesel, then you should probably pay attention to the components mentioned above

Your oil consumption should, of course, be within the normal range, otherwise even the best injectors won't be able to ensure "clean" emissions.

Greetings
Alex

Hello,
Here's the translation:

explain to a non-professional mechanic what nozzle holder combinations are! ?
I can't understand this at all.
Of course, I also have my concerns about the 300,000 km old nozzles, even though I can't afford to spend €400 on new ones!
Thank you very much.
Best regards
Wurstblinker