Pakistani summers push every cooling and electrical system to its limit — a car that runs fine in winter can start showing problems the moment temperatures climb past 40°C.
Check coolant level and condition before the heat sets in — old coolant loses its corrosion-inhibiting properties over time, and a system running low is far more likely to overheat in stop-start traffic. Inspect radiator and heater hoses for softness or cracking, since heat accelerates rubber degradation.
Tyre pressure rises with ambient and road-surface temperature — check it more often in summer, and don't "bleed" pressure to compensate; the recommended cold pressure on your door jamb is still correct.
Have your air conditioning system checked before you need it daily — a low refrigerant charge makes the compressor work harder and can shorten its life. Park in shade where possible; prolonged sun exposure fades interior trim and accelerates dashboard cracking over the years.
Finally, keep your battery terminals clean — heat is harder on batteries than cold, and a battery already stressed by summer temperatures is the most common reason for a no-start on the hottest days of the year.