View Single Post
Old 03-26-2006, 09:58 AM   #8
Ronzi
Registered User
 
Ronzi's Avatar
 
Join Date: May 2004
Location: Denver CO
Posts: 748
My car is a Tipper, so I can tell you specifically how it responds in the situation you describe in #6.
If you shift into manual mode, it will stay in the selected gear up to about 6250rpm, at which point if you haven't had sense enough to upshift, it will upshift for you in the interests of self-preservation.
The question then arises, suppose I'm in the middle of a corner at 6250rpm and I don't WANT it to upshift just then? Actually I can't tell you what happens in this situation because I've never been in that situation. My guess is that the computer is going to determine what the side-loading on the car is (i.e., how fast you're going thru the corner) and if it's low enough, upshift. If not, cut in the rpm limiter until side-loading has been reduced enough to safely upshift. But maybe I'm giving the computer too much credit. Perhaps someone who tracks their Tipper car can tell us, because I'd like to know, too.
There were a number of changes to the Tip in the 2000 cars, including revised gearing and the addition of a temporary manual shift while in auto mode. The Tip in the 2000 S also has an uprated torque converter and a control module with more shift maps.

One other point to consider is that Tiptronic cars are less susceptible to the dread RMS (rear main seal) problem than manual shift cars.
Ronzi is offline   Reply With Quote