UK-POLOS.NET - THE VW Polo Forum

Got a polo 2016 1.0 mpi. Car starts in the morning but once engine is warm it will refuse to start again. Just a single click from starter. Sometimes no click at all. Replaced starter motor and still got same issue. Checked their is 12v at the starter which their is and 12v on the signal wire going to the starter from ignition. Any ideas guys?

Have you checked the solenoid?

maybe bad ground connection, like ground strap between engine block and chassis near right headlight.