vw t4 2.5 TDI - The glow plug indicator does not come on, the engine does not bu

Hello. I just solved a problem in my Caravelka 2.5 TDI. The problem was this kind, I turn the key and the lights are on as always BUT !!!! this is important, in addition to the glow plug indicator light. I turn the key, the engine spins but does not start. The culprit is the voltage relay 109, or rather cold solder, after soldering the car, it's nice. The Germans write that these relays are known to have this problem. I am giving the page for this problem, maybe I will help someone.
http://www.t4-wiki.de/wiki/Relais_J317_(Spannungsversorgung_Klemme_30)

Moderated By T5:

We appreciate that you provided a solution to the problem, your topic may be helpful to others. We award "He helped".

The problem and solution known for years.

Sure, only after three days of flipping our pages, it wasn't until the helmuts that I found a solution.

You were poorly looking.

Or maybe some link to the topic that I did not find?

There is a lot of topics on 109 when it does not start and there is no candle light.

A clear subject is given, clear symptoms and a clear cause, I will not idle discuss and clutter the topic.