«What do you mean, the ecological system? So, I can drive with a check engine light, a rough engine, a jerky transmission, and flat tires, but I can’t drive with a malfunctioning eco system? Is this a joke?»
No, it’s not a joke. If the AdBlue system fails, the control unit allows for 800km (or 10 engine starts), and then it blocks the engine from starting. Why? Because it’s not permissible to drive a vehicle with a non-functioning eco system.
Moreover, this system is Euro 6 (Tier 3), while in some regions, Euro 5 (Tier 2) is legally allowed. But the control unit doesn’t know this, so after 800km (or 10 starts), the engine won’t start.
AdBlue is an ecological system that is “fed” with urea (you need to monitor the level and refill it), and it’s completely unpredictable. It can fail during the break-in period or last hundreds of thousands of kilometers, and there is no way to predict the problem in advance.