Bosch 1986AD1121 A/C Compressor

Reliable A/C Compressor for BMW 128i and 328i Models

The Bosch A/C Compressor 1986AD1121 is engineered to restore efficient air conditioning performance in select BMW vehicles. Designed specifically for BMW 128i, 328i, 328i xDrive, and 328xi models, this compressor ensures compatibility and reliable operation with R134a refrigerant systems.

• Compatible Refrigerant Type: R134a
• Compatible Refrigerant Oil Type: PAG 46
• Oil Filled Compressor for optimal lubrication
• 6-groove pulley for precise belt engagement
• Outside Pulley Diameter: 110 mm
• Compressor Type: 7SEU17C
• Coil Voltage: 12V
• Includes seal ring for secure installation
• Weight: Approximately 14 lbs

About the Bosch A/C Compressor Product Line

The Bosch A/C Compressor product line focuses on delivering durable and efficient HVAC components tailored for automotive applications. This line emphasizes precise engineering and compatibility with original equipment refrigerant types and oils, such as R134a and PAG 46, to maintain system integrity and performance. The 1986AD1121 model exemplifies these standards, providing a direct replacement option for BMW vehicles requiring the 7SEU17C compressor type.

Detailed Product Description

This Bosch A/C Compressor (part number 1986AD1121) is an oil-filled unit designed to work seamlessly with R134a refrigerant and PAG 46 oil, ensuring proper lubrication and longevity. The 6-groove pulley with a 110 mm outside diameter allows for accurate belt alignment and efficient power transfer. Operating at a 12V coil voltage, this compressor matches the electrical requirements of the specified BMW models. The inclusion of a seal ring helps maintain system pressure and prevents leaks during installation.

Common Applications and Issues Addressed

• Replacement for failing or noisy A/C compressors in BMW 128i and 328i series
• Restores proper refrigerant compression and circulation
• Eliminates insufficient cooling caused by compressor malfunction
• Addresses oil contamination or leakage within the A/C system
• Resolves pulley or clutch engagement problems related to compressor wear

Installation Notes and Tips

Ensure the A/C system is properly evacuated and recharged with R134a refrigerant and PAG 46 oil during installation. Verify the pulley groove count and diameter match the vehicle’s belt specifications. Confirm the coil voltage is compatible with the vehicle’s electrical system. Replace the seal ring included with the compressor to maintain system integrity and prevent leaks.

Quality Assurance and Warranty

Bosch manufactures this A/C Compressor to meet OEM standards for fit, form, and function. The unit is oil filled and tested for performance before shipment. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed warranties to ensure reliability and customer confidence.