CSF 3547 Radiator

OE-Style Radiator for Mercedes-Benz Cooling Service

CSF 3547 is an OE-style radiator built with a plastic tank and aluminum core for direct replacement cooling service. It is engineered for cross-flow operation and uses quick-connect inlet and outlet pipe fittings, making it a practical choice for Mercedes-Benz models that need a factory-style radiator layout.

This radiator is designed for 2008-2015 Mercedes-Benz C300, 2008-2010 Mercedes-Benz E350, 2010-2011 Mercedes-Benz GLK350, and 2012-2015 Mercedes-Benz SLK250 applications. The CSF 3547 part number is also referenced by APDI 8013213 and Carlson 13213 for the same application.

Key Features

• OE-style plastic tanks with aluminum core construction
• Cross-flow radiator design
• 1-row core configuration
• Core thickness: 7/8 in.
• Core dimensions: 25 5/16 in. length, 16 7/8 in. width
• Inlet and outlet: 1 13/16 in., left inlet and right outlet
• High-efficiency plate-type oil cooler integrated into the unit
• Quick-connect inlet, outlet, and oil cooler fittings
• No radiator cap included

Product Details

CSF 3547 is part of CSF’s 1 Row Plastic Tank Aluminum Core line, a product line focused on OE-style radiator construction for vehicles that use plastic end tanks and an aluminum heat exchanger. CSF manufactures a wide range of radiator models and validates cooling performance through laboratory wind tunnel testing, supporting consistent fit and thermal efficiency across many vehicle applications. For Mercedes-Benz owners searching for a radiator for 2008-2011 Mercedes-Benz C300, a replacement radiator for 2010-2011 Mercedes-Benz GLK350, or a direct-fit radiator for 2012-2015 Mercedes-Benz SLK250, this unit follows the original-style layout and connection points.

Use CSF 3547 when replacing a leaking, clogged, or damaged radiator in supported Mercedes-Benz vehicles. The OE-style design helps maintain factory routing and cooling-system geometry while matching the specified inlet, outlet, and oil cooler connection style.

What This Radiator Can Address

• Coolant leaks from cracked or aged plastic tanks
• Restricted coolant flow from internal corrosion or sediment buildup
• Overheating caused by reduced radiator efficiency
• Transmission or engine cooling concerns tied to radiator heat exchange performance
• Fitment issues from using a non-OE-style replacement radiator

Installation Notes

Verify vehicle fitment by year, model, and emissions configuration before installation. This radiator is listed for 2008-2011 Mercedes-Benz C300, exc. PZEV; 2008-2009 Mercedes-Benz E350, exc. PZEV; 2010 Mercedes-Benz E350, exc. PZEV, to 9/28/09; 2010 Mercedes-Benz E350, exc. PZEV, to 10/6/09; 2010-2011 Mercedes-Benz GLK350; and 2012-2015 Mercedes-Benz SLK250. Confirm the quick-connect inlet and outlet pipe connections and the oil cooler fittings match the original equipment layout before final assembly.

Quality Assurance

CSF states that its factories are ISO/TSO certified and that its radiators are engineered to high-performance standards. The brand also notes long-term global production experience and laboratory wind tunnel testing for cooling performance validation.