Hello, I’m new here in the forum and need urgent help with a problem. I drive a Seat Toledo 1M2 Year of construction 09.99 1.8 liters 20V 125hp 158,000 km Automatic Two weeks after starting the engine, the fuel gauge and the engine temperature indicator suddenly stopped working in the instrument cluster (both analog), everything else continued to work light, speedometer, tachometer, odometer everything works digitally as well as analog, only these two instruments Now I was in a tacho workshop and the electronics technician found a dirty conductor track on the board after taking apart the instrument cluster. I had hoped that a one-time occurrence would be due to material fatigue or similar. I bought a replacement instrument cluster at ebay for 35 € built it in (battery clamped off) when I started the ignition is immediately a little smeared in the AI inside so I assume again a L The fuses of the instrument cluster are both healthy (2 x 5A) and also all other fuses in the fuse box next to the steering wheel are healthy (I have each individually controlled) and the fuses on the battery are healthy. A few weeks before these problems some parts were renewed on the car e.g. petrol filter, interior filter spark plugs, rear axle bearing, St. abilizer rubbers, engine oil change, track set, but actually nothing electronic. And even after the work was finished, there were no problems for a few weeks. How can it be that such a circuit in the AI simply smears? So is there a short circuit somewhere? And why don’t the fuses of the AI hit? They are actually there to interrupt the current when there is a short circuit. Has anyone ever had to deal with such a problem? Bin w thank you for any help! Where do I have to start looking?