BMW E87 E90 E91 Diesel M47N2 Air Conditioning A/C Compressor Pump 6987766

BMW E87 E90 M47N2 Air Conditioning Compressor 6987766 is an original component of the air conditioning system designed for BMW diesel engines, ensuring stable refrigerant compression and proper operation of the entire cabin cooling system. A used compressor allows for a technically correct air conditioning repair while maintaining factory operating characteristics and compatibility with models of BMW 1 and 3 Series.

Specifications and technical data

• SKU: 6987766
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6935613
• Substitutable numbers: 64526935613, 64526987766, 6987766, 6935613
• Fuel type: Diesel
• Category: A/C Compressors & Clutches

Intended Use and Diesel Engine Compatibility

The presented air conditioning compressor has been designed to work with the M47N2 unit in diesel-powered BMW vehicles. The compressor's design is adapted to the characteristics of a diesel engine, including higher torque and specific thermal conditions, which translates to stable air conditioning system pressure and predictable engine accessory load.

Selecting the correct compressor for a diesel engine is crucial for:

• maintaining adequate cooling performance across the entire RPM range,
• minimizing power loss resulting from the compressor's drive belt,
• ensuring proper cooperation with the control electronics of the air conditioning and engine systems.

BMW Air Conditioning Compressor Construction

The air conditioning compressor from this series belongs to the category of Air Conditioning Compressors and Clutches, meaning it is responsible for both refrigerant compression and interaction with the drive system through the compressor clutch. The solution used by BMW ensures precise engagement and disengagement of the load, which affects the smoothness of the engine's operation and the durability of other accessory components.

The original OEM construction guarantees:

• correct mounting to the engine block and compliance with factory mounting points,
• appropriate port geometry for high and low-pressure lines,
• compatibility with the factory pressure sensor and performance control valve.

Benefits of Using an Original Used Compressor

Choosing a used BMW air conditioning compressor with preserved factory specifications is a solution that combines economic aspects with the correct functionality of the system. A component from disassembly, originating from the original production line, ensures:

• retention of factory air conditioning operating parameters without the need for system adaptation,
• consistency with the control unit software responsible for pressure and temperature regulation,
• easier diagnostics in case of potential faults, due to compliance with BMW service documentation.

The used condition means the component comes from an operated vehicle, which is important when planning service – prior to installation, a standard workshop procedure is recommended, including system inspection, dryer replacement, and proper refrigerant filling.

Application in BMW Air Conditioning Service and Repairs

BMW E87 E90 M47N2 Air Conditioning Compressor 6987766 is suitable for both typical replacement of a damaged compressor and for comprehensive air conditioning system overhaul after a failure. Thanks to its preserved original specifications, it is appropriate for use in professional workshops specializing in the BMW brand, as well as in specialized automotive air conditioning workshops.

In practice, installing such a compressor allows for:

• restoring full air conditioning functionality in diesel-powered vehicles,
• reducing the risk of leaks resulting from improper fit of aftermarket parts,
• maintaining compliance with factory service procedures and BMW technical diagrams.

Other BMW Air Conditioning Compressors and Knowledge of Used Parts

If you are looking for other BMW air conditioning compressors and clutches suitable for different models and engine configurations, check out our dedicated category: BMW Air Conditioning Compressors and Clutches. There you will find a wide selection of air conditioning system components from disassembly, which will facilitate the selection of the correct part for a specific vehicle version.

When selecting used components for comfort systems and engine accessories, it is worth learning about best practices related to purchasing disassembled parts from premium brands. More on this topic, using another high-end brand as an example, can be found in the article: Used Mercedes Parts – Original Components from Disassembly, which discusses the advantages of using original components at a reasonable price and issues related to their verification before installation.