BMW F20 F21 LCI F30 F31 Transmission Gearbox Oil Cooler 8514515

BMW F20 F21 LCI F30 F31 Transmission Gearbox Oil Cooler is an original transmission oil cooling system component designed for post-facelift BMW 1 and 3 Series models. It ensures a stable operating temperature for the automatic transmission, which translates into smooth drivetrain operation and reduced component wear. This solution is dedicated to drivers who expect factory-fit quality and predictable performance parameters.

Specifications and technical data

• SKU: 8514515-3
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8514515
• Substitutable numbers: 8514515, 17218514515
• Gearbox type: Automatic
• Category: Oil Coolers & Lines

Purpose and function in the drivetrain

The presented oil cooler is a component of the transmission system responsible for dissipating heat from the oil in the automatic gearbox. Maintaining a stable temperature of the lubricating medium is crucial for:

• maintaining the proper viscosity of the transmission oil,
• reducing the overheating of internal transmission components,
• maintaining smooth gear shifting across a wide range of loads,
• extending the service life of the entire drivetrain system.

Thanks to the use of a dedicated oil cooler, the automatic transmission operates under more predictable thermal conditions, which promotes stable driving parameters and reduces the risk of failure resulting from excessive temperatures.

Compatibility with automatic transmission

The component has been designed to work with the automatic transmission in selected BMW F-series models. The cooler's design is adapted to the oil flow characteristics of the automatic transmission, enabling efficient heat exchange under variable loads and diverse road conditions.

Selecting the correct oil cooler for a specific automatic transmission version is important in terms of:

• correct oil circuit pressure,
• adequate cooling efficiency at high RPMs and loads,
• maintaining compatibility with factory oil lines and mounts.

Benefits of using an original BMW oil cooler

Using an original BMW component for transmission oil cooling provides a number of practical operational benefits. The most important include:

• Factory fit – a design intended for a specific vehicle platform, with no need for installation modifications.
• Consistency with drivetrain operating parameters – the cooler works with the factory automatic transmission control system.
• Stable thermal conditions – reduced risk of oil overheating during intensive city and highway driving.
• Possibility of economical repair – replacing the oil cooler alone often allows for restoring proper transmission operating conditions without interfering with its interior.

For users looking for a technically proven solution in the field of transmission oil cooling, such an element is a rational choice in terms of service costs and durability.

Condition, origin, and service application

The offered oil cooler comes from the BMW parts group and is classified in the Oil coolers and lines category. As a used component, it represents an attractive alternative to new parts, especially in the case of maintenance repairs where the cost-to-functionality ratio matters. This type of component is often used during:

• repairs after automatic transmission overheating,
• preventive replacement of oil cooling system components,
• restoring factory configuration after a collision or interference with the drivetrain.

It is always worth verifying the selection of the correct oil cooler for a specific vehicle based on vehicle data and manufacturer markings to ensure full installation compatibility.

Cooling system expansion and additional materials

During periods of high temperatures, it is particularly important to maintain the efficiency of the entire cooling system, including components responsible for dissipating heat from the engine and transmission. More practical information on the impact of heat on the cooling system and the selection of used components can be found in the guide Summer heat vs. cooling system – used radiators and fans as a way to control costs.

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