BMW Mini Cooper 1 R55 R56 Diesel Exhaust Catalytic Converter Pressure Hose Assy

The BMW Mini Cooper R55/R56 Diesel Exhaust System Pressure Catalyst is an original part from the Catalytic Converters group, designed for diesel engines in Mini models. Engineered as a complete flexible hose for exhaust pressure measurement, it ensures stable exhaust system operation and proper interaction with the engine control electronics.

Specifications and technical data

• SKU: 2753402-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 2753402
• Substitutable numbers: 13622753402, 2753402, EM
• Fuel type: Diesel
• Category: Catalytic Converters

Purpose and Function in the Exhaust System

This catalyst pressure hose assembly has been specifically developed for the Diesel units in BMW Mini Cooper generations R55 and R56. It is responsible for precisely delivering the exhaust pressure signal from the vicinity of the catalytic converter to the sensor, enabling the engine control unit to continuously monitor exhaust system load, fill level, and catalytic converter efficiency.

A properly functioning pressure hose is crucial for:

• maintaining stable diesel engine operating parameters,
• proper response to changes in load and exhaust gas temperature,
• reducing smoke emissions and ensuring compliance with emission standards,
• protecting the catalytic converter itself from overload.

Construction of the Pressure Hose Assembly

The Mini catalyst pressure hose assembly is constructed as a complete, factory OEM solution, including a flexible section adapted to the exhaust system routing in the R55/R56 body. The shape and diameter of the hose are optimized for rapid transmission of pressure changes, while simultaneously limiting vibrations and the impact of exhaust gas temperature.

The solution provides:

• stable pressure signal routing from the catalytic converter to the sensor,
• resistance to typical thermal loads in a diesel exhaust system,
• factory fitment to mounting points and brackets in the Mini Cooper R55/R56.

Benefits of Using an Original Part

Using the original catalyst pressure hose assembly in a Mini Cooper with a diesel engine allows for the preservation of the original engine performance characteristics. Compared to universal solutions, the OEM part ensures:

• precise geometric fit to the exhaust system and R55/R56 body,
• correct interaction with the pressure sensor and engine control unit,
• reduced risk of leaks or inaccurate pressure readings,
• maintained stable catalytic converter operation under typical operating conditions.

For Mini owners, this translates to more predictable vehicle behavior, proper response to load, and a reduced risk of exhaust system-related errors being stored in the control unit's memory.

Condition, Selection, and Service Application

The offered catalyst pressure hose assembly is a used part, allowing for economical exhaust system repair while maintaining the original manufacturer's specifications. This is a practical solution for situations where the existing hose has become clogged, mechanically damaged, or corroded due to prolonged operation at high temperatures.

When selecting the part, it is important to consider:

• compatibility with the R55/R56 body generation,
• suitability for diesel engines,
• preservation of the original hose routing relative to the catalytic converter and sensor.

If you are planning a comprehensive repair or upgrade of the exhaust system area in your Mini and need other parts from the same group, such as catalytic converters, exhaust pipes, or additional measurement hoses, check the available parts in the Mini Catalytic Converters category.

Technical Support and Exhaust System Knowledge

For users who want to better understand the relationships between the catalytic converter, manifold, pressure hoses, and the rest of the exhaust system in cars like the Mini, we have prepared a guide. Read the article Performance Exhaust Systems: Used Manifolds and Sport Catalytic Converters on the Road to expand your knowledge on selecting and operating exhaust components, including used parts.