Does my Nissan Sylphy need a major service after running over 40,000 kilometers?

No need, I didn't do it. They suggested changing the transmission oil and engine maintenance, like cleaning the air conditioning. I didn't do any of that. I'll change the oil at 60,000 km, or maybe at 55,000 km if necessary.

It would be better to get a major maintenance.

If not, the car will explode.