Does my DSG need an oil change?

I own a Nov 2006 2.0 Jetta, mileage 42,000. Having had it serviced and MoT'd yesterday I was astonished to receive a phone call today saying that the auto gearbox oil should be changed at 40,000 miles cost £180. No one told me this yesterday despite the fact that the car had been booked in weeks ago. Is this necessary or is another try on by the VW dealership?
Seems that all dual clutch transmissions require a change of fluid every 3 years. The VAG DSG also requites a change of microfilter. The cost for a Ford Powershift has been quoted at £250.
Answered by Honest John on

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