Nissens 890645 A/C Compressor

Nissens A/C Compressor for Mercedes-Benz

The Nissens 890645 is a first-fit A/C compressor built for select Mercedes-Benz applications with the 6SBU16C compressor ID. It uses R134A refrigerant and comes pre-filled with PAG 46 oil for a faster, cleaner replacement process.

Compatible with 2012-2015 Mercedes-Benz C250 and 2012-2015 Mercedes-Benz SLK250, this compressor is a direct-fit HVAC service part for restoring cabin cooling performance. Nissens develops thermal management components to OE-level specifications, with attention to fit, function, and material quality.

Key Features

• Part number: 890645
• Compressor type: 6SBU16C
• Refrigerant type: R134A
• Compatible refrigerant oil: PAG 46
• Pre-filled with PAG oil
• 6-groove pulley design
• First-fit design for time-saving installation
• Includes pre-filled PAG oil and O-rings when needed

Detailed Description

Nissens 890645 is an A/C compressor for Mercedes-Benz C250 and Mercedes-Benz SLK250 models equipped with the 6SBU16C compressor specification. It is engineered for R134A systems and uses PAG 46 oil, making it a practical replacement for vehicles that need a compressor matched to the original HVAC setup. The first-fit format supports efficient service work while maintaining the correct compressor configuration for the application.

This part cross-references Valeo 813258 for the same application. The Nissens 890645 part number is also useful when searching for a Mercedes-Benz C250 A/C compressor or Mercedes-Benz SLK250 A/C compressor replacement.

What It Helps Address

• Weak or inconsistent cabin cooling
• Compressor noise from a worn internal unit
• Loss of refrigerant system pressure from compressor failure
• HVAC performance issues tied to the 6SBU16C compressor assembly
• Replacement needs for R134A-equipped Mercedes-Benz A/C systems

Installation Notes and Tips

Verify the compressor ID, refrigerant type, and pulley groove count before installation. Confirm the vehicle uses R134A and PAG 46 oil, and inspect the system for contamination or leaks before charging. For 2012-2015 Mercedes-Benz C250 and 2012-2015 Mercedes-Benz SLK250 applications, match the existing compressor specification to the 6SBU16C designation for proper fitment. The Nissens 890645 is a first-fit replacement, so it is important to confirm the vehicle’s HVAC configuration before service.

Quality Assurance

Nissens manufactures thermal and engine efficiency components with a focus on consistent quality and ongoing product development for the aftermarket. The 890645 A/C compressor reflects that approach with application-specific fitment, pre-filled oil, and OE-style system compatibility for the listed Mercedes-Benz models.