BMW X3 F25 (2011-2018) overheating after short drives is this normal

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to ensure safety.

2. Inspect the Coolant System

• Tools Required: Coolant pressure tester, socket set, pliers
• Remove the engine cover (if applicable) to access the cooling system.
• Using a coolant pressure tester, check for leaks in the radiator and hoses.
• Inspect all hoses for cracks or signs of wear and replace as necessary.

3. Replace the Thermostat

• Tools Required: Socket set, torque wrench, gasket scraper
• Drain the coolant from the system by removing the drain plug on the radiator.
• Disconnect the top and bottom radiator hoses from the thermostat housing.
• Remove the thermostat housing bolts and lift off the housing.
• Replace the old thermostat with a new one, ensuring it is oriented correctly.
• Reinstall the thermostat housing and torque bolts to specifications (usually around 10 Nm).
• Reconnect the radiator hoses.

4. Check and Replace the Water Pump (if necessary)

• Tools Required: Socket set, torque wrench, coolant
• If the water pump is found to be faulty during inspection, drain the coolant again.
• Disconnect the drive belt from the water pump pulley.
• Remove the water pump bolts and carefully take out the water pump.
• Clean the mounting surface and install the new water pump, ensuring proper alignment.
• Torque bolts to specifications (usually around 10-12 Nm).
• Refill the cooling system with fresh coolant.

5. Reassemble and Test

• Reconnect the battery and fill the cooling system with the appropriate coolant mixture.
• Start the engine and allow it to reach operating temperature while monitoring for leaks.
• Check that the radiator fan engages at the correct temperature.