10 second thing is bull, wait too long, so the top won't work unless you Restart the car? That's wrong as can be.
Since it's outlined in the owners manual. it's clear you either (a) didn't bother reading or checking this info ro didn't believe it. So go to your R129 with the hardtop on. get in, turn the key on but don't start the car. wait 30 seconds, see what happens. Red light will flash, top will not release.
Then come back and tell me how "bull" my warning is. Don't need to restart the car, just turn the ignition off and back on again.
THIS IS ONLY FOR THE HARDTOP. Soft top doesn't have a time limit. I suspect it is a safety thing to make sure the hardtop doesn't get released when the car is moving.
If you think my post was "Pure Bull", read this.
direct from the owners manual
Removing Hardtop
1. Engage parking brake.
2. Open doors.
3. Disconnect plug (1) for rear
window defroster.
4. Within 10 seconds of turning
key in steering lock to position 2
(engine not running), slide soft top
switch (2) back and hold.
Please note, if soft top switch is
activated after 10 seconds have
expired, turn the key back to position 0
first before the hardtop removing
procedure can be started again at
step 4.
The unlocking procedure begins after
approx. 2 seconds:
• The roll bar lowers.
• The indicator lamp in the
soft top switch lights up.
• The hardtop unlocks.
But that probably won't convince you.