Mercedes V251 Automatic Transmission Gearbox Oil Cooler A1645002400

Mercedes V251 Automatic Transmission Gearbox Oil Cooler is an item from the Oil coolers and lines group, designed to stabilize oil temperature in the automatic transmission. Maintaining proper transmission oil cooling is crucial for smooth gearbox operation, reducing wear, and preserving gear shifting comfort in your Mercedes. This component, originating from the manufacturer's original line, provides a solid foundation for professional drivetrain repair.

Specifications and technical data

• SKU: A1645002400
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1645002400
• Substitutable numbers: A1645002400, A 164 500 24 00
• Gearbox type: Automatic
• Category: Engine Oil Coolers & Lines

Function and role of the automatic transmission oil cooler

The automatic transmission oil cooler is responsible for dissipating excess heat from the transmission oil, which heats up during gearbox operation. Maintaining a stable operating temperature:

• reduces the degradation of transmission oil lubricating properties,
• supports consistent operation of clutches and hydraulic valves,
• lowers the risk of overheating and gearbox failure,
• positively affects the quality and smoothness of gear shifts.

For Mercedes vehicles with an automatic transmission, a properly functioning oil cooler is an important element in maintaining stable drivetrain operating parameters, especially in urban conditions, when towing, or driving in high ambient temperatures.

Designed for automatic transmission

The presented cooler has been engineered to work with an automatic transmission. This means appropriately selected flow channel geometry, adapted connection ports, and transmission oil flow parameters. In practice, this translates into:

• stable cooling across the full range of transmission loads,
• consistency with the factory operating characteristics of the system,
• suitability for use in standard Mercedes service procedures.

By maintaining the original design concept, the cooler works with the factory oil line system, which facilitates installation and reduces the need for system modifications.

Product characteristics and service application

The Mercedes V251 Automatic Transmission Gearbox Oil Cooler is suitable both for typical replacement of a worn-out part and for repairs following transmission overheating. It allows for the restoration of proper oil circulation in the gearbox cooling circuit, which is essential after:

• repairs or regeneration of the automatic transmission,
• mechanical damage to the cooling system,
• detection of leaks or a drop in cooling efficiency.

The product comes from the used components segment, which allows for an economical approach to repair while maintaining characteristics close to factory standards. This solution is particularly beneficial for comprehensive service work, where both functionality and cost control are important.

Technical support, selection, and additional information

When selecting an oil cooler for a specific version of the Mercedes V251, it is crucial to verify compatibility with the automatic transmission used in the vehicle and the cooling system configuration. It is worth paying attention to:

• compatibility of mounts with the support beam and adjacent elements,
• layout of connection ports relative to oil lines,
• general visual condition and tightness of the element before installation.

For users who want to better understand the impact of temperature on the cooling system and the savings resulting from using used components, we recommend the guide "Summer heat vs. cooling system: used coolers and fans as a guarantee of savings", which discusses the topic of operating and selecting cooling elements in more detail.

If you are considering a broader comparison between new and used parts and want to consciously plan your repair budget, the article "New or used? A comparison of costs and quality of car parts", describing the differences in quality, durability, and cost-effectiveness of individual solutions, will also be helpful.

Related oil cooling system components in Mercedes

If you are planning a comprehensive repair or upgrade of the transmission oil cooling area in your Mercedes and need other elements from the same group, such as additional coolers, oil lines, or connectors, check the available parts in the Mercedes oil coolers and lines category.