I just purchased a new 2009 G37S coupe with 7 speed automatic transmission. I guess I didn't pay attention during the test drive, but after I purchased the vehicle and drove it home I have to say that the transmission is a tad annoying at times. I'm coming from a 5 speed AT 2005 G35 coupe, so maybe I'm not familiar with how a 7 speed works. My complaint is:
When in stop and go rush hour traffic, when I am doing 25 mph and then have to take my foot of the accelerator because traffic ahead has stopped, often the transmission will BRAKE the vehicle (almost as if I was in a manual transmission and was downshifting gears). The same is true if I am simply decelerating from 25 mph to a rolling stop (no brake pedal, just taking my foot off the gas and coasting). In my old 2005, when I took my foot off the accelerator, the vehicle simply coasted, effortlessly, with no jerking, no interference. But the G37S definitely has the transmission interrupting the deceleration experience. I've noticed that the RPM increases when this happens. During the decel I'll be at 2100 RPM, then 1800, then 1600, then I'll be at 1400 RPM and then the tach jumps to 1800 RPM and the downshift then occurs and the "engine braking feeling" is experienced.
Is this normal for a G37 7 speed auto transmission?
Thanks.
Phil
When in stop and go rush hour traffic, when I am doing 25 mph and then have to take my foot of the accelerator because traffic ahead has stopped, often the transmission will BRAKE the vehicle (almost as if I was in a manual transmission and was downshifting gears). The same is true if I am simply decelerating from 25 mph to a rolling stop (no brake pedal, just taking my foot off the gas and coasting). In my old 2005, when I took my foot off the accelerator, the vehicle simply coasted, effortlessly, with no jerking, no interference. But the G37S definitely has the transmission interrupting the deceleration experience. I've noticed that the RPM increases when this happens. During the decel I'll be at 2100 RPM, then 1800, then 1600, then I'll be at 1400 RPM and then the tach jumps to 1800 RPM and the downshift then occurs and the "engine braking feeling" is experienced.
Is this normal for a G37 7 speed auto transmission?
Thanks.
Phil