Four Seasons 178308 A/C Compressor

Overview of Four Seasons New Compressor 178308

The Four Seasons New Compressor 178308 is designed to restore efficient air conditioning performance in select BMW models. Engineered for compatibility with BMW 840i, 840i Gran Coupe, 840i xDrive, 840i xDrive Gran Coupe, X5, X6, and X7 vehicles, this A/C compressor supports both R134a and R1234yf refrigerants.

• Compatible with BMW 840i, 840i Gran Coupe, 840i xDrive, 840i xDrive Gran Coupe, X5, X6, and X7
• Refrigerant type: R134a and R1234yf
• Includes oil for optimal lubrication
• 6-groove serpentine pulley with 4.5-inch outside diameter
• 12-volt coil voltage with included clutch
• Denso compressor type with electronic control valve
• Ear mount style with harness lead connector
• Includes slim line sealing washers (O-Rings 24402 and 24404)

Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new, direct replacement A/C compressors designed to meet or exceed OEM specifications. This product line focuses on delivering reliable performance and compatibility with specific vehicle makes and models. The 178308 compressor is part of this line, ensuring a fresh, unused component engineered for durability and proper fitment in BMW vehicles.

Detailed Product Description

The Four Seasons New Compressor 178308 is a Denso-type A/C compressor engineered for BMW models requiring a 12-volt coil and a 6-groove serpentine pulley system. It supports both R134a and R1234yf refrigerants, making it suitable for modern and legacy air conditioning systems. The compressor comes pre-filled with oil to ensure proper lubrication upon installation. Its ear mount design and harness lead connector facilitate straightforward integration into the vehicle's HVAC system. The included clutch allows for efficient engagement and disengagement of the compressor, while the electronic control valve provides precise refrigerant flow management. The slim line sealing washers (O-Rings 24402 and 24404) help maintain a secure, leak-free connection.

Common Applications and Issues Addressed

• Restores A/C cooling performance in BMW 840i and X series models
• Replaces faulty or worn compressors causing insufficient cooling
• Solves compressor clutch engagement failures
• Addresses refrigerant leaks due to worn seals or O-rings
• Resolves noise or vibration issues related to pulley or compressor wear

Installation Notes and Tips

Ensure the system is properly evacuated and recharged with the correct refrigerant type (R134a or R1234yf) compatible with this compressor. Verify the serpentine belt condition and alignment on the 6-groove pulley. Use the included slim line sealing washers to prevent leaks at connection points. Since mounting hardware is not included, retain original bolts or source appropriate replacements. Confirm electrical connections match the harness lead type for proper coil operation.

Quality Assurance and Warranty

The Four Seasons New Compressor 178308 is a new, unused component manufactured to meet OEM standards. It includes oil and sealing washers to support reliable operation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.