Denso 478-2034 A/C Receiver Drier

Denso New Receiver Drier 478-2034

Denso New Receiver Drier 478-2034 is an aluminum A/C receiver drier built for Mercedes-Benz HVAC systems that need stable refrigerant flow and moisture control. It supports smooth, surge-free air conditioning performance while helping protect internal A/C components from internal corrosion.

Key Features

• Aluminum block union receiver drier construction
• Female inlet and female outlet fittings
• Body diameter: 44.450 mm
• Body length: 406.400 mm
• Contains a desiccant package to manage moisture in the A/C system
• Built to factory-level standards under Denso First Time Fit component requirements

Product Details

The Denso New Receiver Drier 478-2034 is part of Denso’s New Receiver Drier line, a product line focused on OE-style A/C service parts for vehicles that require precise refrigerant management. In Mercedes-Benz applications, the receiver drier helps separate liquid and vapor refrigerant, stabilize system operation, and reduce moisture-related wear that can lead to corrosion and leaks. This makes it a practical replacement during major A/C service on Mercedes-Benz CLS550, CLK350, CLK550, E320, E350, E550, SLR McLaren, CLK63 AMG, C230, C280, C350, C55 AMG, E500, and E55 AMG models.

This part cross-references Mercedes-Benz 211 835 00 47 and Four Seasons 83358 for the same application.

What It Helps Address

• Weak or inconsistent A/C cooling output
• Moisture contamination inside the refrigerant circuit
• Internal corrosion in A/C components
• Surging or unstable refrigerant flow
• Leaks caused by premature internal wear

Installation Notes

Replace the receiver drier during major A/C service, especially when the system has been opened for repairs. Verify the aluminum block union layout and female inlet/outlet connections before installation. For fitment, this part fits 2007-2011 Mercedes-Benz CLS550, 2006-2009 Mercedes-Benz CLK350, 2007-2009 Mercedes-Benz CLK550, 2003-2009 Mercedes-Benz E320, 2006-2009 Mercedes-Benz E350, 2007-2009 Mercedes-Benz E550, 2005-2009 Mercedes-Benz SLR McLaren, 2007-2008 Mercedes-Benz CLK63 AMG, 2006-2007 Mercedes-Benz C230, 2006-2007 Mercedes-Benz C280, 2006-2007 Mercedes-Benz C350, 2005-2006 Mercedes-Benz C55 AMG, 2003-2006 Mercedes-Benz E500, and 2003-2006 Mercedes-Benz E55 AMG.

Quality Assurance

Denso manufactures this receiver drier to stringent factory standards for OE-level fit and performance. The design reflects Denso’s First Time Fit approach, with attention to refrigerant control, moisture isolation, and consistent A/C operation in Mercedes-Benz applications.