I need to replace my nozzles.
I want to stay with Bosch.

Does anyone know where I can get these?

I have them in the ultra sonic right now but I am not hopeful. I some how got liquid in my fuel system. I have tested them and three are totally plugged and the ones that do spray have a awful pattern.

 

How do you plan on coding the rebuild injectors?

 

If just changing nozzles with stock as the OP pointed out why would there be any reprogramming?

The stockers are bosch if remember correctly (pretty much every passenger diesel on market seems to be), whats the humpty dumpty type related to that?

 

The coding tells the ECU spray pattern, so it can program injections with high precision.
Fellow Sprinter owner took his engine apart due to crack piston.
Observing melted piston edges, he concluded that at high mileage the injectors sprayed fuel instead of atomizing it and that eventually lead to crack piston.
Modern engines are highly tuned to perfection and hammer jobs are no longer working.

 

Understand that if a injector tip fails (larger hole or cracked off tip) or the injector itself fails and does a continuous spray vs the timed injections then yes if not caught it will melt the piston. Replacing injector tips with stock injector tips is not a hammerjob and generally relatively common and easy procedure. We do it on bosch injecter trucks with just as fine tuned a injection pattern, personally done it a few times on my trucks without issue. Now replacing the entire injector theoretically a different story. Every modern diesel has injectors that are programmed to the computer, that being said have witnessed several injector replacements on modern diesels where they used the same OEM replacement injectors and had zero issues.

Anyhow if want to replace the whole injector which depending on mileage may be a good idea, if just doing tips which generally clog up or start wearing out first is a much cheaper and easier route. Just dont fowl up the injector itself when replacing them.

Assume your buddy didnt replace tips or injectors and went till one failed and it did his piston in. Very different situation IMHO.

 

Like to add unfortunately with modern diesels the DPF and SCR prevent the tail tail signs of a failing injector(s) until it causes permanent damage in most cases. Unless your doing testing on them on a set schedule to try and catch issues starting which isnt 100% either.

 

I didn't change the injector bodies. Just tore them down and cleaned them. The car has 200k on it so I may want new nozzles some day but these cleaned up.

They cleaned up well. When testing with low-pressure "carburetor cleaner". Three did not spray at all, two sprayed out of one hole or two holes, and one sprayed out of three.
After cleaning all sprayed a nice pattern out of all the holes. Was a nice little pattern. If it will spray well at low pressure I am sure it will work at high pressure. I also cleaned the rest of the parts from the body and put it all back together.

I don't drive this car much and ended up with water in my diesel. I went to my buddy's house to tear down and clean the injectors and left my fuel filter with the sensor there. He mailed it to me as it was a 3-hour drive. I should be putting it all back together tonight.

I rebuild and replace injectors for VW TDI engines in Lockwood at my buddy's shop but have not done a piezo body. My only real experience is with two-stage mechanical pop injectors, not common rail. I have to change shims and adjust them in TDI's .. This looks way easier.

This car is a 07, The EGR and swirl flaps I deleted when I had to replace the oil cooler seals. The exhaust... well is an empty pipe. There is no add blue. This machine is pretty much a normal diesel engine now.

I still would like a good source for these nozzles. I don't want to use some after-market junk or change nozzle size. I don't want to drive to MB and pay ludicrous money for them. I am not a fan of Bosio nozzles. I have had way too much trouble with them in the TDI's. They take all kinds of adjustments and are not consistent from one nozzle to the next even from the same box. I even have the new ones leak on a regular basis.

 

Did you mark the nozzles for placement on the same cylinder?
This is no longer TDI engine and as I mentioned, wrongly coded injectors can lead to catastrophic failure.
If you are confident in cleaning, you still might want to send them to Bosch-equipped shop for testing and new coding.
Than if you had them clog, you might want to use some fuel additives and make sure you fill with clean fuel.

 

As old as you, Plutoe are, you don't seem to learn much on those forums.
Injector Coding: What It Is and Why It Matters (techroute66.com)

 

Each injector is in the same body and the same hole as it was. I am not going to code anything.
I have cleaned injectors for years. I am sure they are clean

 

Its an 07. It will be fine. Better than before unless something got in the injector but if your doing it like mentioned it should be good to go.

If the coding was so important for cleaning injector tips (same stock tips for same injectors) then why the heck didnt it blow up when the injectors were getting clogged up?

OK changing to higher flow injectors yeah sure need a proper tune like any diesel, changing injectors sure theoretically. Cleaning same ones and putting them back in would make no sense I can see in getting them recoded.

 

I fixed my problems. New control valves. The car is purring like a kitten.
I do have an intermittent actuator code. I need to pull that module and re-solder the wires inside.

I have had to learn a lot about these engines. I have owned this car for about 10 years now and this has been the first major issue I have had with it.. Well, I take that back. I did have a turbine sensor failure in the transmission valve body PCB. That one sucked. Had to buy a new board and have a hacker code it to MB using the Moscow dealership's back door. That's how I ended up with the Star software. Ohhh and I had a steering wheel angle position sensor failure!

My sunroof sensors are messed up. It's not automatic anymore.

Compared to my 98 ALH TDI diesel this car is a pain.

About two years ago I blocked the EGR, removed the blend doors, and welded and machined the holes closed on the intakes, did the oil cooler seals, and pulled the exhaust. and.... well took bad things out of it. I hope this car is trouble-free for a while now. Also changed the ECM software a bit since there is no blend door motor installed. My air connector to the turbo is cracked. Shocker. Ordered the hose modification for it. I also ordered just the rubber diaphragms for the PCV. I had to rebuild the suspension, new springs, arms etc.

I don't know how a non-gear head could own one of these cars. Unless they like burning money.

and.....Kajtek1, I learned how to code injectors. I had to replace one body. It is shockingly easy.