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How to Replace the Coolant Thermostat on BMW E46

Model: BMW Serie 3 E46 - Years 1998-2006
Part: Thermostat

In this video tutorial, see how to replace the coolant thermostat on a BMW E46 by following these essential steps: lift the hood and secure it with the prop rod; raise the vehicle with a hydraulic jack and secure it with jack stands; position a container under the engine to collect the fluid and unscrew the coolant drain plug; remove the fasteners from the EGR radiator, then remove the fasteners from the thermostat housing, and tighten the support bracket of the radiator, securing the EGR cooling hose clamp.

Updated on 10 June 2026 by ScegliAuto

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