One Stop Solutions 3478 A/C Condenser

OE-Style A/C Condenser

This OSC Premium New Automotive A/C condenser is built to match original equipment form and function for a direct-fit replacement. It is engineered for Mercedes-Benz GL-Class, ML-Class, and R-Class applications, with aluminum construction and pressure-tested quality control.

• Fits Mercedes-Benz GL350, 2010-2012.
• Fits Mercedes-Benz GL450, 2007-2012.
• Fits Mercedes-Benz GL550, 2008-2012.
• Fits Mercedes-Benz R350, 2006-2012.
• Fits Mercedes-Benz ML350, 2006-2011.
• Fits Mercedes-Benz ML550, 2008-2011.
• Fits Mercedes-Benz ML63 AMG, 2007-2011.
• Fits Mercedes-Benz GL320, 2007-2009.
• Fits Mercedes-Benz ML320, 2007-2009.
• Fits Mercedes-Benz R320, 2007-2009.
• Fits Mercedes-Benz ML500, 2006-2007.
• Fits Mercedes-Benz R500, 2006-2007.
• Fits Mercedes-Benz R63 AMG, 2007.

Key Features

• Aluminum parallel-flow construction for efficient heat transfer.
• Extruded condenser tubes for added structural integrity.
• Louvered aluminum fins and tubes are furnace-brazed for improved heat dissipation.
• Block inlet and outlet fittings for OE-style connection points.
• Individually pressure tested for quality verification.
• Drier included.

Detailed Description

Part number 3478 is a premium new A/C condenser engineered for multi-fit applications without compromising appearance or fit. It follows original equipment dimensions and function, using aluminum parallel-flow construction to support efficient refrigerant cooling in Mercedes-Benz GL350, ML350, and R350 applications. The condenser tubes are extruded for strength, while the bonded fin-and-tube assembly uses furnace brazing to improve heat dissipation. Part number 3478 also cross-references Spectra Premium 7-3478 for the same application.

Common Replacement Issues

• Reduced A/C cooling performance from a leaking or restricted condenser.
• Physical damage to the condenser core from road debris or corrosion.
• Loss of refrigerant pressure caused by worn or failed condenser components.
• Fitment problems when replacing a condenser with an incorrect configuration.

Installation Notes and Quality Assurance

This condenser uses block-style inlet and outlet fittings and is engineered for multi-fit use across the listed Mercedes-Benz applications. Verify the vehicle’s original condenser configuration before installation. All necessary fittings and hardware are included, and each unit is individually pressure tested before release.