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How to Replace the Car Cabin Heating Radiator

Model: Ford Focus MK 1 - Years: 1998, 1999, 2000, 2001, 2002, 2003, 2004
Part: Heater core

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The heating radiator is located at the bottom, under the bonnet. Heat is generated by the combustion inside the engine.

This heat is transferred to the coolant and circulates through the thermostat and the radiator. When a radiator has leaks, it can cause significant damage to the engine due to overheating, and therefore, it must be replaced.

The following guide shows how to proceed. Ensure the engine is cold before starting the operation, and once you locate its position, you can proceed with the replacement.

It is advisable to disconnect the battery before proceeding. After removing the car's heating radiator, check the mounting unit, hole position, and other supports before getting ready to install the new radiator.


Updated on 16 February 2026 by ScegliAuto


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