Interesting. Slipping transmission and the indicator light are definitely concerning. The 2008 Praktik's automatic gearbox isn't known for being bulletproof. Have you checked the vehicle's voltage recently? Undervoltage can cause all sorts of weird issues with the car's electronics, including the automatic transmission. If the voltage drops below a certain threshold, the transmission control unit might not function correctly, leading to implausible shifting behavior.

Thanks for the quick reply! How exactly would undervoltage affect the car transmission? And where would I even begin to check for that?

Essentially, the automatic gearbox relies on solenoids and sensors that need a stable voltage to operate correctly. A voltage drop can cause these components to malfunction, leading to erratic shifting or even the transmission going into emergency mode to protect itself. Checking the voltage requires a multimeter. You'd want to test the battery voltage both when the engine is off and when it's running. However, given the symptoms you're describing, it might be best to take it to a workshop with experience in car transmission problems. They can properly diagnose the electrical system and check the transmission's health.

Thanks for the input. It turned out you were spot on! The workshop confirmed undervoltage was causing the transmission issues. They sorted out the electrical problem and did an automatic gearbox oil replacement. Total cost was 240€. Shifts are smooth again now.

Doświadczam dziwnych problemów z automatyczną skrzynią biegów w moim Skodzie Praktik z 2008 roku (silnik benzynowy, 104173 km). Zapala się kontrolka skrzyni biegów, a automatyczna skrzynia nie zmienia biegów prawidłowo – odczuwa się to jak ślizgająca się skrzynia biegów i czasami utknęła w trybie awaryjnym. Czy przyczyną może być zużyty olej w skrzyni biegów, czy też coś poważniejszego?

Problem z automatyczną skrzynią biegów w Skodzie Praktik