Join Date: May 2005
Location: Newcastle, Australia
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Yeah Matthew that's my understanding too. So no torque converter, just a clutch - albeit a cleverly operated clutch. It is the detail of its operation under particular circumstances that fascinate me. The way it responded on the steepest and roughest exits from the creeks and gullies last weekend was a little surprising to say the least, and I want to learn more. First, with the ESP in Audi's "Off Road" mode, it stalled five times as I tried a little diagonal wheel lifting coming out of the first creek. I thought the game was over before it began. Not good. I'm a slow learner, so then I put the ESP back ON (normal), and it behaved like a Touareg, happily getting air under one or two wheels and continuing forward and upward. Better now, but what caused the stall? Why does the DSG not slip the clutch enough to prevent stalling?
Next question is the detail of how it behaves as going up very steep slopes at slow speed. you start up a slope, and then the terrrain makes you back off and slow down a bit - and then you gently apply power to maintain the new slow speed. But nothing happens at first, and you see speed bleeding down to nothing as the revs climb. At (somehting like) 2000rpm + (depending on the steepness and presumably the torque required for the job) it decides to send some of these revs to the road and the clutch engages, and you are propelled forward at a somewhat alarming speed. What I want the serious technical discussion about is to understand and tame this feature, and know when and how much throttle to apply to manage and control the vehicle's movement...
So, I'll post something like this on a couple of Audi forums and see if anyone knows anything useful, and am starting a dialog with my local Audi tech guy... I also want to know what use "ESP Off-Road" really is...
gone but not forgotten...'05 R5 TDI, factory spare, phatbox, paddles and more
Previous 4x4s: Suzukis '76 LJ50 + '81 Sierra, '83 Subaru, '82 Hilux, '87 Pajero, '87 Troopie, '91 Ford Raider, Nissan Patrols '98 + '01 ,
Current: Audi Q5 2.0 TDI 7sp S-tronic (DSG)
SWMBO: Audi A1 1.4 TFSI 7sp S-tronic