Charge Air Line BMW E90 E91 LCI N57 Diesel Manifold Hose Pipe 7800143

The BMW E90 E91 LCI N57 Intercooler Hose Pipe is a component of the turbocharger system designed for the N57 diesel engines in the facelifted BMW 3 Series E90/E91 models. It ensures the smooth connection of the intercooler with the remaining turbocharger components, which directly impacts the stable operation of the turbocharged diesel engine.

Specifications and technical data

• SKU: 7800143
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7800143
• Substitutable numbers: 7800143, 11617800143, 7809834
• Fuel type: Diesel
• Category: Turbos & Parts

Purpose and role in the charging system

The intercooler hose for BMW N57 engines operates in the demanding high-pressure and variable-temperature environment typical of modern diesel engines. Its task is to safely route compressed air between the turbocharger, intercooler, and intake manifold, maintaining the appropriate air charge density and stable engine operating parameters.

A functioning intercooler hose helps reduce boost pressure drops, improves throttle response and supports smooth engine operation, which is particularly important in high-torque diesel engines.

Design, fit and category

This component falls under the Turbocharger and Parts category, meaning it's designed to work with the factory BMW supercharger system. The hose geometry is tailored to the engine bay of the E90/E91 LCI models, ensuring a clean installation without the need for modifications or makeshift solutions.

A properly shaped intercooler pipe helps maintain proper airflow, minimizing turbulence and unnecessary drag. This is important for both the performance and durability of the turbocharger and other intake system components.

Condition, origin and advantages of using a used part

The hose offered is used, which represents a reasonable compromise between repair cost and maintaining proper fit for the specific BMW model. Selecting an original aftermarket component allows you to maintain the factory operating characteristics of the supercharger system without the risk of mismatch that can occur with universally designed aftermarket parts.

The main benefits of using a used intercooler hose in a diesel engine include:

• factory fit for BMW supercharging system with N57 unit,
• maintaining proper air flow in the intake system,
• reducing the risk of leaks compared to random substitutes,
• more economical repair while maintaining the correct engine operating parameters.

N57 Diesel Engine - Intercooler Hose Requirements

N57 diesel engines are characterized by high boost pressure and significant thermal stress on the intake system. Therefore, the intercooler hose for the BMW E90/E91 LCI diesel engine must provide adequate sealing and resistance to temperature changes to prevent power losses, increased fuel consumption, and boost pressure-related errors.

Replacing a worn or leaking intercooler hose is a basic maintenance procedure for symptoms such as decreased performance, smoke, or a characteristic hissing sound under load. Using the correct hose restores proper operating conditions to the turbocharger and the entire intake system.

Used turbocharging system components and economical operation

Choosing a used intercooler hose fits well into a strategy of conscious, economical vehicle operation. In many cases, original aftermarket components offer a better fit than new, low-quality replacements, translating into more stable engine operation and a reduced risk of additional repairs.

If you are interested in the broader context of the use of used components in premium cars, it is worth reading the article describing how to combine style and economy when selecting parts for premium city cars – you can find it here: used car parts for Mini Cooper – a way to achieve style and savings .

Other intercooler hoses for BMW

If you're looking for other intercooler hoses for BMW, check out our dedicated offer: intercooler hoses for BMW . This will help you easily select the right component for your specific engine and body style.