BMW E60 LCI E90 E91 Turbo Hose Pipe Charge Line M57N2 7802591

The BMW E60 E61 LCI E90 E91 M57N2 Turbo Diesel Pipe Hose is an original turbocharger and parts component designed for BMW M57N2 diesel engines. This OEM part ensures proper charge air routing, which translates into stable engine operation and maintaining factory performance parameters.

Specifications and technical data

• SKU: 7802591
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7802591
• Substitutable numbers: 11657802591, 7802591, 7796335, 59001091168A
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and function in the supercharging system

This turbo hose/pipe for BMW M57N2 diesel engines operates within the turbocharger system, ensuring tight and stable compressed air routing between the turbocharger components and subsequent intake components. A properly selected hose reduces pressure drops, promotes uniform cylinder filling, and helps maintain proper acceleration dynamics.

The element is dedicated to the popular 5 Series E60/E61 LCI and 3 Series E90/E91 diesel models, which makes it easier to select parts when repairing or upgrading the charging system.

Benefits of using the original turbo pipe

The use of the original hose in the charging system of a diesel engine brings a number of practical operational benefits:

• Stable boost pressure – proper hose cross-section and geometry help reduce pressure drops, which helps maintain factory torque characteristics.
• Better cooperation with the turbocharger – matching the specific M57N2 configuration reduces the risk of incorrect system operation, such as delayed turbine start-up or uneven response to gas.
• Reduced leaks – a properly selected element reduces the risk of charge air leaks, which helps avoid power loss and increased fuel consumption.
• Compatibility with factory fittings – the hose is designed to work with the original fittings and other intake system components in a given BMW model.

Product characteristics and condition

The turbo pipe falls into the turbocharger and parts category, meaning it's a component directly related to the engine's supercharging system. This product comes from BMW and is a used part, allowing for cost-effective repair while maintaining the original design specifications.

A used component of this type is particularly attractive in situations where the existing hose has been mechanically damaged, delaminating, or has developed leaks that cause a loss of performance. Replacing it with an original aftermarket component allows you to restore proper operating parameters of the supercharger system without having to invest in more expensive substitutes of uncertain origin.

Selection and application in a diesel engine

The hose was designed with diesel engines in mind, which is important due to their higher boost pressures and specific operating conditions compared to gasoline engines. Selecting the correct turbo hose for the specific M57N2 engine variant is crucial for:

• maintaining appropriate flexibility throughout the entire speed range,
• maintaining correct cooperation with the engine control system,
• reducing the risk of overcharging or undercharging,
• maintaining stable operation under high load conditions and long-term highway driving.

If in doubt when selecting a component, it is worth comparing the cable design with the one currently installed in the vehicle and verifying compliance with the technical documentation of the specific BMW model.

BMW turbocharger system upgrade

If you're planning a comprehensive turbocharger service for your BMW, you might also want to consider other turbocharger components and parts specifically designed for this brand. In this case, our BMW turbocharger and parts catalog will be helpful, making it easier to find compatible components in one place.

When servicing the supercharging system, there's often a need to simultaneously diagnose other vehicle components, including the steering system. The guide , "Steering and Power Assistance – How Does It Work and What Breaks Down?" , can help you understand the interrelationships between these systems and plan further repairs. It also includes practical tips on diagnostics and operation.

Summary

The BMW E60 E61 LCI E90 E91 M57N2 Turbo Diesel Pipe is a used, original equipment turbocharger component designed for BMW diesel engines. By customizing it to the specific model generation and engine, the M57N2 restores proper charge airflow, supporting stable engine operation and maintaining factory performance parameters. It's a practical solution for users seeking a technically sound component at a reasonable budget.