FiveHundred Smartphone Connection Issue

Smartphone connectivity issues can be tricky. I had a similar problem with my old truck. Have you tried deleting the Bluetooth pairings on both your phone and the car, then re-pairing them? Sometimes that clears up weird glitches. Also, is the error code anything specific, or just a generic 'error'?

I tried deleting and re-pairing the Bluetooth connections, but it didn't work. The mechanic said the error was a communication fault within the infotainment system, but didn't give the code. He thought it was a pairing issue or software glitch. Could such a minor issue cause this, or is it something more? Could it be related to the fuel system?

If it's a communication fault within the infotainment, and re-pairing didn't work, it's probably more than just a simple glitch. A workshop visit might be needed to properly diagnose it. These things are hard to track down yourself without the right equipment.

I visited a more specialized workshop. The issue was a corrupted software module in the infotainment system. They re-flashed it for 45€, and now everything is working!