If drains for the ventilation plenum chamber get blocked, water floods into the engine compartment and cabin, causing random but major electrical problems, so drains should be checked regularly. The same drainage issue can cause rusting, allowing water to enter brake servo and make pedal hard. Further rusting allows water to enter engine and destroy it. VW-sourced turbo engines suffer from failure of ignition coils often, although VW now offers redesigned coils. There seems to be a shortage of Skoda-specific parts. Some report noises from loose dashboard and seats. V6 engine burns excessive oil by design. Trunk lid supports fail in a few years.
