Fuel Injector Problem: 1Z Cylinder 4 GSK Removal?

Hi.

Do you need to disconnect the fuel line to injector 4 if you want to remove the glow plug?

Here in the forum, there's a picture that hints at this, but as far as I know, it doesn't explicitly state whether or not it *must* be done like that.

That's exactly the one I have, and I forgot to do it during the Duesen swap (where's my hammer? X).

No, it's not necessary, but when screwing in the new one, you should initially start by hand to avoid tilting it. Once it's properly seated in the threads (and straight), you can easily continue with a wrench.

I can confirm that; I replaced my Bosch spark plugs with cheaper Beru ones after 180,000 km (3 were defective).
A long 10mm socket wrench has proven to be extremely helpful. It allows you to remove the glow plugs (spark plugs) without much hassle. (Volkswagen Golf 3)

Hi,

The long-handled 10mm wrench mentioned earlier is more than worth its weight in gold for this procedure...

I've replaced the spark plugs once with the fuel injector line disconnected and once with it connected. It's a tight fit around the electrical connector, but with the long socket wrench and some careful maneuvering, you can get it done.

OK, thank you.

"When you take everything out, it's simple; I tested that myself. (I removed the nozzles and then, as a test, took out one spark plug to try and get things flowing because the nozzle seats were dirty)."

Once everything was put back together, I took measurements and found that the Z4 spark plug is faulty.

A 1/4" 10mm deep socket is already ready - because you can never reach the large 1/2" 10mm socket with a regular wrench .

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.

OK, thank you.
...
A 1/4' 10mm deep socket is already ready - because you can never reach the large 1/2' 10mm socket with a regular wrench.
m;

Then nothing can possibly go wrong!

Last winter, I also replaced all four glow plugs without disconnecting the injector lines.

Yep, it worked!

10-inch long nut - cross joint - extension - torque wrench.

And this morning, the test... nothing! Aaaaaaaahhhh, it's too warm!! It didn't glow!!

It started well, but he choked once or twice. It's strange that it didn't glow. My outdoor thermometer showed 4.1 degrees Celsius. But I was still on my way until 1:00 AM and then put him in the garage while he was still warm... there must have been some residual heat.

Okay, please provide the German text you would like me to translate into English. I will only provide the translation.