1.6l TDI / 105hp faulty injektor repair idea

Hey guys, anybody tried to fix a faulty injector by it's own?

One of our company cars have a faulty injector @cylinder 3. I checked the internal resistance with a multimeter and got 4kOhm. All healthy ones are around 190kOhm. I have another broken injector to play with and that one also show ~5kohm on the multimeter. I noticed that you can easily remove te top part that includes the electical components of the injector wich looks like this:

https://german.alibaba.com/product-detail/solenoid-valve-for-siem-ens-continental-vdo-common-rail-piezo-injector-1600121716566.html

Now I'm asking myself if the injector can be fixed by swapping this part. This should be possible without removing the entire injector since you can acces it pretty well. Unfortunately I wasn't able to find any supplier from EU and I'm also not shure if this will work at the end of the days since it might be possible that this part became faulty due to another issues inside the injector assy,