Description
Serge from Zimaleta Motors Mobile Mechanic pressure-tests his Range Rover for a coolant leak, then refills the system under vacuum with G05 coolant. After the refill the engine reaches normal operating temperature without overheating, but the heater still blows cool air, leaving a mystery: is the thermostat missing or stuck open? The video also covers the backstory — the vehicle was bought sight unseen, smelled of coolant, had stop leak used several times, and overheated once on a 96-mile trip. Stop leak is discussed as a quick try, not a permanent fix. Timestamps: 0:00 Pressure test for a coolant leak; 3:57 Vacuum refill with G05 coolant; 5:59 Warm-up with the heat on max; 12:35 47 minutes, no overheating, but still no hot air; 13:38 Thermostat missing or stuck open theory.