cb1228,
I'm tossing this out for what its worth, ... and maybe not that much ... it really depends on your personal situation.
My 2016 Roadster, too, has the tonneau cover hitting the soft top frame on one side when opening. The car was an Nissan executive car before I bought it at 11 000 kms, before the 2017's hit the market. Over the years I've always let the previous owner take the depreciation hit and have avoided buying new.
From day one it has had this issue, and given the time it has taken me to join the forum, download and study the factory service manual, determine that I had an issue, and then find the solution, in my case, is it worth fixing at this point?
The factory service manual solution is to replace the two 5th bow bungee cords (MSRP $101 each on one side) and that's without labour charges, a job I can do myself.
Since I have 3 other vehicles to drive, and the Z is just a toy that comes out when the temperature is right and weather radar says no rain. I think I'll wait until a year from now to decide to go the warranty route or not. For sure, I'll get the problem documented with the dealership now, so that future decision will have a track record with Nissan.
In the meantime, and this is where I've been going all along with this thread, I'm opening the top from the driver's door switch (standing outside of the car), and when the 5th bow folds up, I'm helping it towards the front of the car with my hand (about a 3rd of the way across the bow) to fold up that extra inch or so, so that the tonneau cover doesn't strike the 5th bow.
I may decide to shorten the 5th bow bungee cord and see how that affects the issue. When anything bungee related stretches over time, it may be that this could be a solution as well. And it could be that replacing these bungee cords is an every 3 year thing, due to their stretching. Who knows?
My car has just hit 16 000 kms, is just officially 2 years old, and has another full year of warranty left, ending sometime early in September of next year.
I'll keep everyone posted as to what I decide in a year's time.
Gene
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