Check the footwells for damp carpet. Not sure if the Octavia is similar to the Passat and the Golf in this respect, but both VWs suffer from water ingress through the pollen filter from blocked plenum drains.
This drains into the footwells where VAG helpfully store the body control computers and their wiring looms. It's an expensive job at a dealer to get it fixed and requires a new loom at the minimum due to corrosion.
If only six weeks old and this is the case, suggest you push for full refund or written guarantee that any subsequent problems will be covered down the line.
Last edited by: Fursty Ferret on Sun 6 Jul 14 at 17:47
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