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    Control Unit, glow time

    Product number: MHG 46
    ART: MHG 46 / EAN: 8436034411840

    MAHLE
    Advised products
    Price incl. vat.
    € 39,69

    Add to cart
    Leverdatum: 23-04-2026

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    Manufacturer Model Version Engine code Construction type Construction start Construction end Pk Power kw
    AUDI AUDI
    VW VW
    Manufacturer Productnumber
    MERCEDES-BENZ 0065458932
    MERCEDES-BENZ 0075459832
    MERCEDES-BENZ A0065458932
    MERCEDES-BENZ A0075459832
    VW 171911261
    VW 171911261C
    VW 191911261A
    VW 191911261A/C
    VW 191911261C
    VW 321911261C
    VW 325911261
    VW 4439 11261 , 443911261
    VW 443911261C
    VW 443911262
    VW 867911261C
    VW 893911261
    AUDI 171911261
    AUDI 171911261C
    AUDI 191911261A
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    CUPRA 171911261
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    CUPRA 325911261
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    CUPRA 443911261C
    CUPRA 443911262
    CUPRA 867911261C
    CUPRA 893911261
    Usage numbers
    72473851
    TPPSS/7-12
    MHG 46
    8
    43603E+12

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    Control Unit, glow time

    The Control Unit, glow time (MHG 46) regulates glow plug operation for reliable diesel cold starts. Replacing a faulty controller restores correct heating and smoother engine performance. Use Porza’s smart search to find the correct unit.

    FAQ

    A glow time control unit is an electronic component in diesel engines that manages the operation and timing of the glow plugs. Its function is to control how long the glow plugs are activated before and after engine start, ensuring optimal preheating for reliable cold starts and efficient combustion. It communicates with the engine control unit (ECU) to adjust glow time based on temperature and operating conditions.


    Key specifications include operating voltage (typically 12V or 24V), number of glow plug outputs, connector type, and compatibility with the vehicle’s ECU. The unit must handle high current loads and operate reliably in harsh engine environments, including temperatures ranging from -40°C to +125°C. Integrated electronics must provide precise timing and protection against overload or short circuits.


    Replacement is necessary when the unit fails to control the glow plugs correctly. Symptoms may include difficult cold starts, extended cranking, glow plug warning lights, or fault codes related to the glow system. A faulty control unit may cause glow plugs to activate for too long or not at all.


    Porza offers a fit guarantee option where your vehicle details, such as license plate or VIN, are checked against product specifications. This ensures the control unit matches your engine’s glow plug system, including electrical connections and control requirements.


    Porza offers a fit guarantee option where your vehicle details, such as license plate or VIN, are checked against product specifications. This ensures the control unit matches your engine’s glow plug system, including electrical connections and control requirements.


    Porza supplies high-quality engine management components with fast delivery across Europe. Customers can order online or choose in-store pickup in the Netherlands, Germany, or Belgium. This allows quick access to essential parts for both professional workshops and individual users.


    If you select the fit guarantee, Porza verifies compatibility before shipment. If the product does not fit or meet expectations, it can be returned according to the return policy. This ensures a reliable and risk-free purchasing experience.


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