I've had my Volkswagen Golf SV for 10 months from new and the DSG seven-speed automatic gearbox has developed a squeal when pulling away in a low gear. The problem only occurs when the engine/gearbox is at full temperature and even then it is intermittent.

The mechanic at my local garage clearly knew what the problem was because he diagnosed it without any prompting from me. Volkswagen say they cannot carry out the necessary repair until they've heard the squeal for themselves.

Unfortunately, a test drive proved fruitless as the squeal failed to materialise. I'm aware of DSG issues. Is the problem going to get worse and what can I do to persuade Volkswagen to fix it?