Very Very disappoint with my new Golf 6 and Dealer

[bm2amb]

14th/Dec/2010 4:00Pm - Picked up my brand new GOLF 118TSI 6Speed
14th/Dec/2010 8:30pm - Went out for a ride
14th/Dec/2010 8:45pm - EPC Error Light Went On, HUD Engine Failure Please visit Nearby Worksop, Limited Speed on 5KM and Car was Shacking
14th/Dec/2010 9:55pm - Completed Pull Over and Wait
14th/Dec/2010 10:20pm - Restart the Engine, everything backed to normal
15th/Dec/2010 07:20am - Drove back to Brisbane Dealership for Check (ODO is 45KM)
15th/Dec/2010 08:20am - Service guy mentioned need to run the Diagnose to Sydney
15th/Dec/2010 10:30am - Service guy called, Throttle Control related Parts needs to be replaced, Parts will be in on Friday from Melbourne, Car will be already Friday Afternoon
17th/Dec/2010 01:00pm - Called Dealer followup, hasn't replace yet
17th/Dec/2010 04:30pm - Call from VW, Parts replaced, but still getting same error, have to leave till Monday
20th/Dec/2010 11:00am - Called Dealer followup, running Diagnose again, no ETA for my Car
20th/Dec/2010 12:40pm A Call from Dealer, Could be throttle sensor wire fault, ordered a parts...
21/Dec/2010 2:45pm Dealer Called, Parts just turned on 1Hr ago, May finished the fit-in tomorrow, and contact me tomorrow afternoon.
22nd/Dec/2010 2:45pm Dealer called, Throttle Wire fitted in, But SAME Error again. VW Tech suggest replace the Engine Computer MAY fix the problem, Needs to order from Germany, will take 3-4 Weeks to arrive then fit-in.Loan car needs to take back due to its Sales Department Demo Car. VW Representative will contact me tomorrow morning.

WTF, Brand New Car..and Return to workshop in 15Hrs...

and, Can't even find what the problem is till now.

They refused to replace the vehicle or refund.

Thinking to get lawyer or lodge to ACCC

Anyone had similar situation before??

I love Golf, My Golf III died few weeks ago. Now Dealer and VW is trying to disappoint me from many years great experience.