Quattro/ESP question
02-04-2004, 02:27 PM
#1
AudiWorld Member
Thread Starter
Quattro/ESP question
My owner's manual ('02 S6) states:
"Normally, the ESP should always be on, however, it may be advantageous to turn off the system in certain special cases when wheel slippage is desired such as:
-- when driving in deep snow or on a loose surface
-- when trying to "rock" out the vehicle when it has become stuck."
Is turning off ESP "advantageous" in low traction situations because Quattro requires some wheel slippage in order to redirect power to the wheel with traction? In other words, if ESP is not deactivated, I assume it will brake and/or cut power before Quattro can do its thing. Is this correct?
Andy
"Normally, the ESP should always be on, however, it may be advantageous to turn off the system in certain special cases when wheel slippage is desired such as:
-- when driving in deep snow or on a loose surface
-- when trying to "rock" out the vehicle when it has become stuck."
Is turning off ESP "advantageous" in low traction situations because Quattro requires some wheel slippage in order to redirect power to the wheel with traction? In other words, if ESP is not deactivated, I assume it will brake and/or cut power before Quattro can do its thing. Is this correct?
Andy
02-04-2004, 04:51 PM
#4
You're doing it right. Turn it off for the track.
Since it uses the brakes along with part of the QTR system the brakes can get extremely hot. That's usually already and issue at the track ;-)
The QTR/EDL remains on all of the time. EDL cuts out after 55mph to avoid frying the brakes, but if left on, ESP operates at all speeds.
The QTR/EDL remains on all of the time. EDL cuts out after 55mph to avoid frying the brakes, but if left on, ESP operates at all speeds.
02-04-2004, 04:59 PM
#6
The ESP kicks in only if QTR can't restore control as defined
by the ESP programming.
When you turn off ESP, it should be in fairly slow going with very low surface friction, or if you are stuck. If you are on glare ice and the wheels can't really lay down any power, you want to have ESP butt out, and have the QTR dig around for some extra traction, even though that may mean all four wheels spin or the car sidesteps from the direction the front wheels are pointing.
ESP deals more with normal travel at normal speeds and when a suprise shows up under those conditions. It's purpose is to try and keep you going in the direction you are pointing the front wheels. It's a directional aid, not really a traction aid.
Also, the brakes can get very hot (used by both ESP and EDL (part of the QTR system) when exposed to prolonged high slip situations. You don't want to overheat them.
When you turn off ESP, it should be in fairly slow going with very low surface friction, or if you are stuck. If you are on glare ice and the wheels can't really lay down any power, you want to have ESP butt out, and have the QTR dig around for some extra traction, even though that may mean all four wheels spin or the car sidesteps from the direction the front wheels are pointing.
ESP deals more with normal travel at normal speeds and when a suprise shows up under those conditions. It's purpose is to try and keep you going in the direction you are pointing the front wheels. It's a directional aid, not really a traction aid.
Also, the brakes can get very hot (used by both ESP and EDL (part of the QTR system) when exposed to prolonged high slip situations. You don't want to overheat them.
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