Mercedes W203 W204 W212 Radiator Rubber Bushing Mounting Support A2035040012

Mercedes W203 W204 W212 Radiator Rubber Bushing Mounting Support is a precision component from the Water radiators group, responsible for the stable mounting of the radiator within the cooling system. Its rubber construction dampens vibrations and relieves stress on the aluminum radiator core, which promotes smoother engine operation and extends the service life of the entire system.

Specifications and technical data

• SKU: A2035040012
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2035040012
• Substitutable numbers: A2035040012, A 203 504 00 12
• Part type: Radiator
• Category: Radiators

Purpose and function in the cooling system

The radiator mounting support in Mercedes W203, W204, and W212 models acts as a flexible link between the radiator and the vehicle body. Thanks to the use of a specifically formulated rubber compound, this component:

• dampens vibrations transmitted from the body to the radiator,
• compensates for minor deformations and movements of the powertrain,
• reduces the risk of micro-cracks and radiator leaks,
• stabilizes the radiator's position when driving over uneven surfaces. In practice, this translates into more consistent cooling system performance and a reduction in the risk of failures resulting from mechanical stress.

Compatibility with Mercedes models

The described rubber support has been designed for popular C-Class and E-Class generations, ensuring proper geometric fitment to factory mounting points. The appropriate shape and hardness of the rubber allow for maintaining the operating parameters specified by the vehicle manufacturer, without the need for modifications or forced fitting. As a result, installation in Mercedes W203, W204, and W212 series vehicles is straightforward, and the support works seamlessly with the existing water radiator and other structural frame components.

Characteristics of the used component

The support comes from dismantling, meaning it is an original Mercedes part with preserved factory design parameters. A used rubber component in good condition retains its damping properties while providing an economical alternative to new replacements of uncertain rubber compound quality. Choosing an original, used support is particularly beneficial for maintenance repairs, where a reasonable balance between cost, durability, and proper fitment for a specific Mercedes model is essential.

Benefits of a properly selected radiator support

A functional rubber radiator mounting support affects several key aspects of vehicle operation:

• Protection of the water radiator – limiting vibrations and impacts reduces the risk of mechanical damage and coolant leaks.
• Cooling system stability – the radiator maintains the correct position relative to the fan and hoses, which promotes even airflow and fluid circulation.
• Driving comfort – reduction of unwanted resonances and knocking sounds from the front of the vehicle.
• Economical repair – using an original used component allows for reduced service costs without sacrificing the fitment specified by the manufacturer.

Technical support and additional materials

If you are planning a comprehensive repair or upgrade of the cooling system area in your Mercedes and need other components from the same group, such as radiators, expansion tanks, or coolant hoses, check out the available parts in the Mercedes water radiators category. To better understand how high temperatures affect radiator performance and why the condition of mounting components matters for the durability of the entire system, it is worth checking out the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings, where you will find practical tips regarding the operation and selection of cooling components.