I own a 2006 Audi A6 2.4 Multitronic which now has 89,000km (55,302 miles) on the clock. She has a full service history but the problem is that the Audi Freeway Maintenance plan expires in 11,000km (6,835 miles) or end April 2011.To help me decide if I should extend the maintenance plan I would like to know what types of problems I can expect from this vehicle beyond 100,000km (62,137 miles)? Can anyone help me with their experiences please. Is the multitronic gearbox going to be a problem?