Ford Fiesta small engine 1.4

Ford Fiesta 2012 Engine size: 1.4 Odometer: Standing at 270, not operating Air conditioning: Not working (Repainted one year ago) Inspected and inspection is still valid Installed new tires + engine belt + new battery Changed oil and filter Flaws: Slight oil leakage, not severe Driver's door does not lock properly, needs repair. Heater does not work in winter. The car runs fine, thank God, and has good fuel efficiency, but needs an electrician to check the fan issue—it runs automatically sometimes and then stops, causing the engine to overheat