31/08/2026
This Volkswagen California is with us for investigation of a parasitic battery drain.
Modern Volkswagens contain numerous interconnected computers and control modules that continue communicating even after the vehicle is switched off.
A software conflict, control module failing to enter sleep mode, or an electrical component remaining active can all result in an unexpected battery drain.
Using genuine Volkswagen diagnostic equipment, we’re carrying out a thorough 24-hour diagnostic test, monitoring the vehicle as its systems shut down and enter their various sleep states to help accurately identify the source of the concern.
It’s a great example of why modern vehicle diagnostics increasingly involves understanding electronics, data and software — not simply replacing parts.