Thermostat 105°C (318i M43) (BMW 3 Series E46) is a crucial engine cooling component designed specifically for the BMW 3 Series E46 with the M43 engine variant. This thermostat regulates the engine coolant flow by opening at 105°C, ensuring the engine maintains optimal operating temperature. Proper temperature regulation helps prevent overheating and maintains efficient engine performance.
This thermostat fits the BMW 318i models equipped with the M43 engine, making it important to verify engine type when replacing. The thermostat sits in the cooling system, controlling the release of coolant to the radiator once the engine reaches its operating temperature threshold. When the engine is cold, the thermostat remains closed to allow the engine to warm up quickly.
Key points to consider when selecting this thermostat include matching the temperature rating (105°C) and confirming the engine code (M43) for compatibility. Compare the old thermostat’s markings or specifications to ensure the correct replacement. If unsure about specific fitment or compatibility, consulting the sales desk or submitting a request for parts can help guide the purchase.
- For BMW 3 Series E46 318i with M43 engine
- Opens at 105°C to regulate cooling
- Ensures proper engine temperature control
Need help matching this item to your vehicle? Use more Thermostat, Vehicle Parts Finder or Request a Part with your VIN, engine number, part number or clear photos.