[RESOLVED, SEE BELOW THIS TEXT]
I looked at the 2nd generation --> Electrical Sub-forum, and it seems limited to R55, 56, and 57. So I am posting here.I recently obtained an R58 (2015 MCS) and wired in a constant to momentary output voltage relay circuit to default the car to Sport Mode when the ignition is turned on.
I want to do the same with the rear trunk spoiler to make it default to manual mode when I turn on the ignition, and I wonder if anyone here has tried it.

What I know from my own experience and reading those of other forum users:

• Entering "temporary" rear-spoiler manual mode is done with the toggle switch (green LED illuminated) to raise the spoiler.
• The R58 remembers this manual mode for a few ignition on/off cycles (after getting groceries or pickleball), the spoiler remains raised, but it will soon retract and default back to automatic mode (green LED off).
• Manual mode can be reactivated if "green LED off" is noticed immediately after starting the R58 (or before spoiler retracts while driving) by pushing the spoiler toggle switch forward (1/2 second -- manual mode activated with a ~1 mm retraction) and then rearward for 1/2 to 1 second to fully raise (1 mm) the spoiler again.

Yes, I have read that using the index finger to toggle the spoiler is easy enough to not need automation, but I want to try and automate the process.

1. I identified the wires that control the raise/retract of the spoiler are near the passenger side footwell fuse -- the extend wire (brown/red) is in module X11002 and the retract wire (brown/blue) is in module X11008
2. The Altronix 6062 timer can send a momentary signal to the retract wire to activate the spoiler manual mode with an ignition on state -- mimicking the 1/2 sec toggle touch I do with my finger. But, this retracts the spoiler 0.5 to 1 mm. if this method is repeated, say 100 times without extending the spoiler, it would retract 100 mm (~4.5 inch) over time. So, it is important to pulse an 'extend' signal shortly after sending the retract' signal.

Point 2 (above) is my sticking point. Using two Altronix timers would enable me to send two separate signals to mimic retract and extend pulses, but the extend pulse needs to be delayed after the retract pulse and have a dwell time of 1 second to ensure full extension of the spoiler. If someone can help with this here, or advise me to move it to the Electrical sub-forum even though it appears to be R55-7 limited, I appreciate it.

Alternatively, if there is a recently identified, simple NCS solution to deactivate the spoiler in its fully extended state that would also be helpful.

Best,
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RESOLVED
Set up
Timer-1 to Lower Spoiler for 1/2 sec 12 V pulse (this places it in Manual Mode); NOTE: potentiometer dial with "1" written on it.
'C' (common) is used to tap the wire in next photo

Tapped Brown/Blue(stripe) wire in connector X11008 (see diagram below for location)

Timer-2 to Extend Spoiler for 1/2 sec 12 V pulse (this timer - 3-sec delay - re-extends the spoiler); NOTE potentiometer dial with "3" written on it.
'C' (common) is used to tap the wire in next photo

Tapped Brown/Red(stripe) wire in connector X11002 (see diagram below for location)

Schematic



Short Clip of the action sequence. Note, the wing can be placed at any starting angle and the sequence will keep it there.

 

I admittedly wired the Altronix timer for the Sport Mode button by following a prescribed diagram. Even though I understand the operation of an SPDT relay, I didn't fully understand the operation of the timer and relay combination until after I read several wiring applications.

I will get two Altronix timers that allow the user to energize the relay at the end of the adjustable timing cycle.
One timer will be set for 1 second before sending a 1 sec pulse through the energized relay to "retract" the spoiler, and the second timer will be set for 3-5 sec before sending a pulse to "re-extend" the spoiler. NOTE: the spoiler will begin in its fully extended position.

I hope the 1 second pulses mimic the length of me pressing the spoiler toggle switch in each direction. There is seemingly no simple way to increase the pulse width (i.e., pulse time) on the Altronix without changing a capacitor.

 

I received one of two Altronix 6062 timers today and wired it into place. The 1-second pulse from the timers was sufficient to trigger the spoiler retraction about 1/2 inch and place the spoiler in manual mode. (SUCCESS)

When the second timer arrives tomorrow, I will delay its pulse for about 2 seconds, which will enable the "extend" function of the spoiler, and it will always be raised back to its highest point, in principle.

Since power to the relays will cease after the pulse, the spoiler trigger will work normally afterward. So, the spoiler can be lowered at, e.g., a car wash. The carwash operator starts the car and drives into the washer. When starting the car, the timer pulse will "lower" the spoiler, which will not move because it's already lowered. The second pulse from the second time will "raise" it a 1/2 inch or less [next] car off before it enters the wash [next] wash [next] operator restarts the car [next] pulse 1: spoiler will lower 1/2 inch; pulse 2: spoiler will raise a 1/2 inch. Before I leave, I will raise the spoiler fully, and the fully raised cycle begins again.

I am sure this is a Rube Goldberg workaround, but it is the best I have seen without going to the dealer to modify the spoiler function. From my readings of earlier forum entries, NCS coding of modules or the VO omission does not appear to produce the desired fully extended (or lowered) spoiler. Unplugging the motor seems to throw a dash code - also, the spoiler cannot be lowered for the carwash when disconnected.

I will post the final results over the weekend.

NOTE: if someone wanted an "always" closed spoiler, they could lower it fully and use 1 timer pulse to keep it closed after every start-up.

 

Glad it worked out for you.

I think 90% of what you are/where describing is over most of the members electrical know how.

 

See the resolution in the first entry of this thread.