BMW E82 E81 E87 LCI Gearbox Oil Cooling Pipe Inlet Hose Tube Line Outlet 7796875

BMW E82 E81 E87 LCI Gearbox Oil Cooling Pipe Inlet Hose Tube Line Outlet is an original automatic transmission oil cooling system component designed for facelifted 1 Series models. Thanks to its factory-spec geometry and proper fluid routing, it ensures stable transmission operating conditions and reduces the risk of overheating during intensive use.

Specifications and technical data

• SKU: 7796875
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7796875
• Substitutable numbers: 17228509705, 8509705, 17227796875, 7796875
• Part type: Oil Cooler Line
• Category: Oil Coolers & Lines

Purpose and function of the gearbox oil cooling pipe

The pipe is responsible for transporting transmission oil between the gearbox and the oil cooler, facilitating both inlet and outlet circulation. A properly functioning pipe maintains system integrity, ensures correct operating pressure, and enables efficient heat dissipation from the transmission fluid, which translates into transmission longevity and smooth gear shifting. This component is particularly important in vehicles used in urban conditions, on highways, or during dynamic driving, where transmission oil temperature can rise rapidly. A functional pipe minimizes the risk of leaks, drops in oil levels, and associated mechanical failures.

Benefits of using an original BMW pipe

Using a pipe from the Oil coolers and hoses group dedicated to specific BMW models allows for maintaining the factory characteristics of the drivetrain. The original connection geometry and properly selected internal pipe diameter support correct oil flow and compatibility with factory quick-connectors and mounts. The main advantages of this solution include:

• reliable fitment for the transmission oil cooling system in facelifted 1 Series models,
• preservation of the manufacturer-designed pipe routing, which limits stress and the risk of abrasion,
• compatibility with factory brackets and mounting points on the chassis.

Characteristics of the used component

The offered pipe is a dismantled, used part, which allows for economical repair while maintaining the manufacturer's original specifications. This type of part is a good choice when the existing pipe has suffered from corrosion, mechanical damage, or leaks at the connections. Before installation, standard workshop procedures are recommended: checking for leaks, inspecting the condition of the connections, and flushing the system in accordance with service practices for BMW automatic transmissions.

Installation and maintenance tips

When replacing the gearbox oil cooling pipe, it is worth paying attention to:

• correct identification of the flow direction (inlet/outlet) according to the layout in the specific model,
• cleanliness of the ports in the gearbox and oil cooler,
• use of appropriate seals and retaining clips intended for this type of pipe. After installation, it is recommended to bleed the system, check the transmission oil level, and perform a test drive while monitoring for any potential leaks. This procedure helps restore stable transmission oil cooling and reduces the risk of costly transmission repairs in the future.

Compatibility, part numbers, and selection

The pipe is an original BMW part, assigned to specific body and engine versions of the facelifted 1 Series. When selecting the component, it is advisable to use the OEM part number and interchangeable numbers to ensure that the pipe will be compatible with the specific gearbox and oil cooler configuration. In case of doubt, the selection can be verified using the vehicle's VIN or by comparing the shape and type of connections with the pipe currently installed in the car. If you are planning a comprehensive repair or upgrade of the transmission oil cooling area in your BMW and need other components from the same group, such as return lines, supply lines, or additional sections connecting the cooler to the gearbox, check the available parts in the BMW Oil coolers and hoses category. For users considering installing a used part instead of a new one for repairs related to oil leaks or transmission maintenance, practical tips regarding diagnosis and the scope of work may be useful – you can find them in the article Operational failures and costs: how to repair a car using used auto parts?.