The BMW E60 E61 Air Conditioning Compressor M57N2 is an original cabin cooling system component designed for BMW 5 Series E60/E61 diesel engines. It ensures stable air conditioning operation by maintaining proper refrigerant pressure in the system and supporting thermal comfort inside the vehicle.
Specifications and technical data
- SKU: 6946871
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 6946871
- Substitutable numbers: 64509180547, 9180547, 64526946871, 6946871
- Fuel type: Diesel
- Category: A/C Compressors & Clutches
Purpose and Role in the Air Conditioning System
The BMW air conditioning compressor is responsible for compressing the refrigerant and circulating it throughout the system. In M57N2 diesel engines, it is crucial for maintaining stable air conditioning performance, even under heavy engine load.
This component works in conjunction with other system parts (condenser, evaporator, expansion valve) to create a closed cooling circuit. A correctly selected compressor reduces air conditioning power loss, minimizes the risk of refrigerant overheating, and supports even cabin cooling at various driving speeds.
Category: BMW Air Conditioning Compressors and Clutches
The presented component belongs to the Air Conditioning Compressors and Clutches category, meaning it is designed to work with the engine's belt drive and the compressor clutch. Proper matching to the M57N2 unit ensures factory mounting geometry, correct accessory belt tension, and compatibility with original brackets and hoses.
If you are looking for other components in this group, such as alternative compressors for different 5 Series models, check out the available BMW air conditioning compressors and clutches to select a part precisely matched to your specific engine version.
Technical Characteristics and Fitment
The Air Conditioning Compressor for BMW E60/E61 has been engineered for demanding conditions typical of diesel engines. The accessory belt-driven system must handle significant loads, making the correct compressor fitment directly impact the durability of the entire auxiliary system.
- Adapted for Diesel Engines – design matched to the torque characteristics of the M57N2 unit.
- Compatibility with Factory Equipment – maintains original belt line and mounting points.
- Consistency with Air Conditioning Control System – proper cooperation with pressure sensors and the air conditioning control unit.
By adhering to manufacturer standards, installation is similar to factory procedures, without the need for system modifications or additional adapters.
Condition, Verification, and Practical Application
The offered compressor comes from the used original parts segment, allowing for a combination of reasonable cost with OEM specification compliance. Such components are often chosen for repairs of air conditioning systems in vehicles several years old, where technical compliance and economical operation are priorities.
- Cost Savings on Servicing – a used OEM part is an attractive alternative to new aftermarket replacements.
- Maintained Factory Operating Parameters – matched to the original BMW air conditioning system.
- Professional Installation Possible – standard service procedure familiar to workshops specializing in the brand.
When replacing the compressor, it is recommended to simultaneously check the condition of the dryer, condenser, and hose seals, as well as flush the system and fill it with the correct amount of refrigerant and compressor oil according to service documentation.
Used Compressors and Economical Premium Car Repairs
In premium vehicles such as BMW or Mercedes-Benz, the use of used OEM components is often a conscious choice, allowing for the maintenance of a high level of comfort without excessive budget strain. If you are interested in the broader context of using used parts in premium segment cars, it is worth reading the article: used parts for Mercedes – original parts from dismantling, which discusses the practical aspects of such repairs.
Summary
The BMW E60 E61 Air Conditioning Compressor M57N2 is a functional choice for diesel engine users looking to restore their air conditioning system's efficiency while maintaining manufacturer specifications. A properly selected and correctly installed compressor supports the stable operation of the entire cabin cooling system, enhancing driving comfort in daily use.
