Astra J Sports Tourer from SYD Australia

[Dennis S]

Very nice looking car. How do you find the auto gearbox ?

Thanks. The 6speed auto (6t45) I find a bit sluggish - slow to react and change gears. The transmission tune I got has improved the shifting a bit but nowhere near how a DSG or even a ZF transmission performs. The engine tune having heaps more torque lower in rev range masks the reaction as it feels good holding on the gears a bit more. Reliability wise, haven't had any issues though I'm only at 42,000km and did a preventive transmission oil change @ 36,000.

I was wondering if the transmission could be tuned. My car is completely standard.
The only issue I have with the auto gearbox is when I'm driving along, it's in 6th gear and I put the foot down to overtake something.
The gearbox often jumps down two gears rather than one, feels like it's over-revving, and has missed the optimum torque available in the next gear up.
But maybe I'm just being picky... I could use the manual shift.
I was previously a VW driver but needed an auto gearbox for my wife. I was put off the DSG box by the reliability issues I'd read about on line.