I'm having the same problem - the up and down on my 2014 Audi Q7 steering column does not function.
Uwe's comment (Make sure to approach all 4 end positions (up, down, forward, back) before performing the basic setting) is helpful in that perhaps if we place a current source into the up / down functions of the column motor, cause it to reach the end points, and cause J519 to realize that the column moves, we can then reset the basic setting?
I found a thread on AudiWorld that references a procedure:
https://www.audiworld.com/forums/q7-discussion-112/steering-wheel-column-wont-telescope-2807042/
Summarized here -
[09] - Central Electronics
Basic Setting
Steering Column Adjustment
[Select]
[09 - Central Electronics]
[Basic Settings - 04]
Group 001
[Go!]
Activate the Basic Setting.
[ON/OFF/Next]
The adjustment should now be learned.
[Done, Go Back]
[Close Controller, Go Back - 06]
Can we somehow make procedure out of this that involves moving the column with an external current source? There is a connector for the motors that is easily reachable.
Here's another thread where someone used an external current source to move the column, just to get it to a reasonable position
https://www.audiworld.com/forums/q7...st-steering-column-not-working-2885150/page2/
"I used the wiring schematic and tested the voltage and current on the in/out to test. Normal Volts/Amps. I then tested the up/down and no voltage present to the motor connector. I then shut off the car accessories. I disconnected the wiring adapter to the motors from the control circuit. I used my 12v car battery charger to apply a voltage to the up/down motor. Low and behold.. it adjusted!! I moved it to my normal position (most of the way down) and reconnected everything. I wanted to see what would happen and if it would try and reset it to the top position. Nope... stayed there... still not sending control voltage to the motor. But the in/out worked like normal... so at least it's in the vertical position i wanted."
I wish I could buy the shop manual for my Q7 the same way I did did for my d2 A8 and B6 S4 cabriolet - and Uwe graciously gifted me the A8 d3 manual, which is now well used (thank you!). I would like to know if G357 and G358 are position sensors.