Relay 109 Clicking in VW Passat 35i

Hello,

Unfortunately, I couldn't find anything relevant in the search results. Perhaps someone here has encountered this problem before and can help me.

Here's the translation:

"It's a Passat TDI, manufactured in August 1998, with 90 horsepower. When I turn the ignition on, relay 109 starts clicking, and I can't start the engine. I've already tried a different relay, but the problem remains the same. Could the starter motor be defective?"

First, measure the battery voltage.

Thank you for the tip! The battery didn't seem to be broken, but that was actually the problem. I'm relieved now.