Am writing this letter to Subaru Australia – wonder if I’ll get a favourable response?

I am asking for your assistance in regard to a warranty problem. I purchased a Subaru Outback 3.0 Premium MY07 recently (26 Jan 2009) and while in most regards it is in excellent condition it has one annoying “feature” that I think should be handled under warranty. Its gets a shudder in the transmission when the steering wheel is turned. This is most noticeable in reverse when turning but also noticeable when turning a corner or driving along a curved road.
I booked the car in to Tynans Subaru service centre in Wollongong (on the 18 Feb 2009) and described the problem to them. I received a call later in the day explaining that they would need to change the oil in the transmission and diff – suspecting that this may be the cause of the shudder problem – while this sounded like a reasonable suggestion, I was taken back when they suggested that it would cost me $220 for them to confirm their suspicions. There is no guarantee that this will fix the issue and I do not believe I should have to pay anything for something that may or may not have been caused by a Subaru service agent. 

I can provide more detail if you are willing to help.

regards