Originally Posted by josephp732
Not true - VW has had issues with LSPI and carbon buildup on the intake valves.
2018 Golf piston failure attributed to LSPI:
Intake valves yes, but we are not talking about that here.
LSPI, no. There were issues with pistons on 1.4 engines that had turbo and compressor, but that was resolved long time ago.
Piston failures on VW/Audi's are usually attributed to slew of available modifications on the market, and unfortunately, that is not only failure. That prompted VW/Audi to check every vehicle under warranty with special software to see whether ECU recorded any abnormalities.