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"Dynamic" Quattro

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Old Aug 11, 2020 | 10:00 AM
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Default "Dynamic" Quattro
In the drive select, the 2017 TT Cab I'm test driving for the day has a setting to modify the Quattro. Any talk about what that setting does?

JW
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Old Aug 11, 2020 | 11:39 AM
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It controls how much power can be dynamically allegated to the rear wheels. on the TTRS, for instance, dynamic mode will allow 100% of power to go to the rear wheels in certain driving situations.
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Old Aug 11, 2020 | 11:49 AM
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Originally Posted by jwarrenod
In the drive select, the 2017 TT Cab I'm test driving for the day has a setting to modify the Quattro. Any talk about what that setting does?

JW
From Audi:



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Old Aug 11, 2020 | 11:56 AM
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Originally Posted by Nebuul
It controls how much power can be dynamically allegated to the rear wheels. on the TTRS, for instance, dynamic mode will allow 100% of power to go to the rear wheels in certain driving situations.
*massive eye roll* Haldex quattro could only send 100% of power to the rears if the fronts were literally off the ground or completely on ice. It can do 100% front disengaged or 50-50% fully locked.

To actually answer the original question, the drive-mode Quattro doesn't change much. Dynamic will be slightly more likely to preemptively engage the rears under heavy throttle, but in my experience logging the amount the haldex is engaged with VCDS while driving in different drive modes, it really doesn't change a whole lot.
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Old Aug 11, 2020 | 04:31 PM
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Originally Posted by macaddict111
*massive eye roll* Haldex quattro could only send 100% of power to the rears if the fronts were literally off the ground or completely on ice. It can do 100% front disengaged or 50-50% fully locked
Despite the scale of your eye roll, my statement stands as true, as does my description of the function of that feature
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Old Aug 11, 2020 | 05:39 PM
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Originally Posted by Nebuul
Despite the scale of your eye roll, my statement stands as true, as does my description of the function of that feature
I'd literally love to hear you explain how an AWD system with a single clutch that locks the rear to the front axle can somehow magically decouple the fronts and drive with the rears only.
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Old Aug 11, 2020 | 07:09 PM
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Originally Posted by macaddict111
I'd literally love to hear you explain how an AWD system with a single clutch that locks the rear to the front axle can somehow magically decouple the fronts and drive with the rears only.
I'm not an engineer. Ask Audi. If they are lying about something as objective as this, it should be easy to disprove.
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Old Aug 11, 2020 | 08:10 PM
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Originally Posted by macaddict111
I'd literally love to hear you explain how an AWD system with a single clutch that locks the rear to the front axle can somehow magically decouple the fronts and drive with the rears only.
https://www.audi-technology-portal.d...ch?c=image:959
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Old Aug 12, 2020 | 03:09 AM
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You meant to say multi-plate clutch?



Originally Posted by macaddict111
I'd literally love to hear you explain how an AWD system with a single clutch that locks the rear to the front axle can somehow magically decouple the fronts and drive with the rears only.
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Old Aug 12, 2020 | 10:12 AM
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Originally Posted by Nebuul
I'm not an engineer. Ask Audi. If they are lying about something as objective as this, it should be easy to disprove.
Awesome, well I am, I actually went to school for 6 years for this.

Clutch vs Clutch Pack vs Multi-Plate Clutch in no way changes how Haldex quattro works. Literally every "clutch" on the car including DSG is a multi-plate clutch. It either couples the rear axle to the front or it doesn't, with a single hydraulic control channel. If you want a system that can do a rear-bias AWD, then you need to upgrade to an A4 or S5 or any of their bigger models with crown-gear quattro.
Last edited by macaddict111; Aug 12, 2020 at 11:07 AM.
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