Nissens 890303 A/C Compressor

Overview of Nissens A/C Compressor 890303 for BMW Models

The Nissens A/C Compressor part number 890303 is designed specifically for select BMW vehicles, including the 740i, 740Li, and X6 models. Engineered for efficient climate control, this compressor supports R134a refrigerant and comes pre-filled with PAG 46 oil to ensure optimal performance and longevity.

• Compatible refrigerant type: R134a
• Pre-filled with PAG 46 refrigerant oil
• Compressor type: CSE717
• 8-groove pulley design with a maximum diameter of 4.3307 inches
• First fit installation for time-saving replacement

Technical Details and Features

This Nissens A/C Compressor (890303) is built to meet the specific requirements of BMW 740i, 740Li, and X6 models. The compressor uses R134a refrigerant, a common and widely accepted refrigerant type for automotive air conditioning systems. It is pre-filled with PAG 46 oil, which is compatible with the refrigerant and ensures proper lubrication of internal components. The pulley features 8 grooves and a maximum diameter of 4.3307 inches, designed to match the original equipment specifications for smooth operation. The compressor type CSE717 is engineered for durability and reliable performance under varying driving conditions.

Applications and Common Issues Addressed

• Restores proper air conditioning function in BMW 740i, 740Li, and X6 models
• Resolves compressor failure due to worn or damaged internal components
• Eliminates insufficient cooling caused by refrigerant leaks or compressor inefficiency
• Addresses pulley or clutch issues affecting A/C system engagement
• Prevents further damage to the HVAC system by ensuring correct oil lubrication

Installation Notes and Tips

The Nissens A/C Compressor 890303 is designed as a first fit replacement, which simplifies installation and reduces labor time. It comes pre-filled with PAG 46 oil, eliminating the need for additional oil charging during installation. Ensure the system is properly evacuated and flushed before installing the new compressor to avoid contamination. Verify compatibility with the vehicle’s refrigerant type (R134a) and pulley specifications to ensure proper fit and function.

Quality Assurance and Warranty Information

Nissens manufactures this A/C compressor to meet OEM standards for fit, form, and function. The pre-filled oil and precise pulley design contribute to reliable operation and extended service life. While specific warranty details may vary, Nissens products typically include a limited warranty covering defects in materials and workmanship. Consult product documentation or supplier information for exact warranty terms.