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    Temperature Switch, radiator fan

    Product number: 400 703
    ART: 400 703 / EAN: 4063926210461

    MAXGEAR
    Advised products
    Price incl. vat.
    € 53,17
    Add to cart
    Leverdatum: 13-05-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    MERCEDES-BENZ MERCEDES-BENZ
    Manufacturer Productnumber
    MERCEDES-BENZ 001 540 31 45 , 0015403145
    MERCEDES-BENZ A001 540 31 45 , A0015403145
    SMART 001 540 31 45 , 0015403145
    SMART A001 540 31 45 , A0015403145
    Usage numbers
    400 703 001
    HP400 703
    4063926210461
    5403140000018

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    Temperature Switch, radiator fan

    The Temperature Switch, radiator fan (400 703) activates the radiator fan based on coolant temperature. Replacing it restores proper cooling system operation and prevents overheating.  

    FAQ

    A temperature switch for a radiator fan is a sensor-controlled switch that activates the cooling fan when a specific temperature is reached. Its function is to ensure the fan turns on and off at the correct times to maintain proper engine temperature.

    Key specifications include switching temperature range, thread size, connector type, number of pins, and compatibility with the vehicle. It must operate accurately under varying temperature conditions.

    Replacement is necessary when the switch fails or becomes inaccurate. Common symptoms include the fan not turning on, running continuously, or engine overheating.

    Porza offers a fit guarantee option where your vehicle details are checked against product specifications to ensure correct compatibility.

    Porza provides high-quality cooling system components with fast delivery across Europe and options for online ordering or in-store pickup.

    If the fit guarantee is selected, compatibility is verified before shipping. If the product does not fit, it can be returned according to the return policy.

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    Straelseweg 52, 5911 CR
    Venlo
    The Netherlands

    Willem de Rijkelaan 15a, 5616 HH
    Eindhoven
    The Netherlands

    info@porza.nl
    085 401 1901
    KVK 0123456678
    BTW 01NL123435B1

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