Yes, leaving a car with a completely flat tyre overnight is generally not problematic for the vehicle's immediate mechanical components if the car is not moved. The wheel rim won't be damaged from simply bearing the stationary weight, and the suspension is designed to handle such static variance. However, in the UAE's specific climate, there are significant long-term risks. Prolonged exposure to summer temperatures above 40°C can accelerate the degradation of the tyre's sidewall rubber where it is pinched and folded. Furthermore, fine desert dust and sand can work its way into the compromised seal between the tyre bead and the rim, potentially causing slow leaks or corrosion. The RTA Dubai consistently advises in its vehicle safety guides that maintaining correct tyre pressure is essential for vehicle safety, even when parked. Similarly, general maintenance guidelines from the MOI UAE emphasize the importance of tyre integrity. From a cost perspective, a tyre left flat for weeks may develop a permanent flat spot or sidewall damage, leading to a necessary replacement. For a common tyre size on a vehicle like a Nissan Patrol, this could mean an unexpected cost of 600–900 AED per tyre, contributing to a higher total cost of ownership (TCO) through premature replacement rather than repair. The key is to address the flat tyre promptly, ideally within the same day.
