March to May: the pre-summer window that exposes cooling systems
The pre-summer inspection should lean hard on everything that heat will punish three months later. That means a pressure test or at least a visual check of the coolant system for weeping hoses and crusty residue around the radiator end tanks, a look at the condition of the water pump and drive belts, vent-temperature readings with a probe thermometer rather than a hand held over the vent, and a battery test under load. UAE batteries realistically last 24-36 months; one that scrapes through a March test will very likely strand the new owner in August, so a good report notes the battery's age and cold-cranking performance, not just pass or fail.
Tyres deserve the same forward-looking treatment. Check the DOT date codes on all four corners plus the spare: tyres older than five years fail the annual registration inspection in the UAE regardless of tread depth, and rubber that has baked through several Gulf summers can look fine while the sidewalls are quietly perishing. A car bought in April on 2021-dated tyres is a car that needs four new tyres before its next renewal, and that belongs in your price negotiation.