Global Parts 1711726 HVAC System Relay

HVAC System Relay for Mercedes-Benz

Global Parts 1711726 is an HVAC system relay used in Mercedes-Benz climate control circuits. It supports ECM-controlled A/C operation on modern vehicles and also serves as a compressor shutoff relay on earlier applications to help protect the compressor system.

Built with a square connector shape, green housing, and 4/5 terminal configuration, this relay is a direct-fit electrical component for a wide range of Mercedes-Benz models, including E-Class, C-Class, ML-Class, GL-Class, SL-Class, and Sprinter applications. Part number 1711726 is also referenced for multiple OE and aftermarket cross applications.

• HVAC system relay for A/C control circuits
• Square connector shape for proper electrical connection
• Green relay housing
• 4/5 terminal configuration
• No skirt design
• Used in ECM-controlled air conditioning systems and compressor protection circuits

Detailed Product Overview

This Global Parts HVAC relay is designed for Mercedes-Benz vehicles that rely on relay-controlled air conditioning operation. In newer systems, the engine management system uses the relay as part of A/C command and feedback logic. In earlier systems, the relay helps interrupt compressor operation when needed to reduce the risk of compressor damage. Part number 1711726 is a practical replacement for diagnosing or restoring HVAC electrical function on Mercedes-Benz E350, C300, ML350, and related models.

This part cross-references Four Seasons 36040 and 36131 for the same application.

Common Issues This Relay Can Address

• A/C compressor not engaging
• Intermittent HVAC electrical operation
• Relay failure causing loss of compressor control
• Faulty feedback to the engine management system
• Climate control shutdown caused by worn relay contacts

Installation Notes and Tips

Verify connector shape, terminal count, and relay location before installation. Confirm the vehicle’s HVAC diagnosis before replacing the relay, and inspect related fuses, wiring, and compressor control circuits for damage or corrosion. Compatible with select Mercedes-Benz applications including 2006-2016 E350, 2008-2014 C300, and 2010-2018 Sprinter 2500 models, as well as other listed Mercedes-Benz fitments.

• Fits 2017-2020 Mercedes-Benz SLC300, N/A
• Fits 2007-2018 Mercedes-Benz CLS550, N/A
• Fits 2014-2018 Mercedes-Benz CLS63 AMG S, N/A
• Fits 2009-2018 Mercedes-Benz G550, N/A
• Fits 2013-2018 Mercedes-Benz G63 AMG, N/A
• Fits 2016-2018 Mercedes-Benz G65 AMG, N/A
• Fits 2010-2018 Mercedes-Benz Sprinter 2500, N/A
• Fits 2010-2018 Mercedes-Benz Sprinter 3500, N/A
• Fits 2015-2017 Mercedes-Benz CLS400, N/A
• Fits 2007-2017 Mercedes-Benz E550, N/A
• Fits 2006-2016 Mercedes-Benz E350, N/A
• Fits 2007-2016 Mercedes-Benz E63 AMG, N/A
• Fits 2014-2016 Mercedes-Benz E63 AMG S, N/A
• Fits 2016 Mercedes-Benz SLK300, N/A
• Fits 2009-2011 Mercedes-Benz SLK300, N/A
• Fits 2005-2016 Mercedes-Benz SLK350, N/A
• Fits 2012-2015 Mercedes-Benz C250, N/A
• Fits 2012-2015 Mercedes-Benz SLK250, N/A
• Fits 2008-2014 Mercedes-Benz C300, N/A
• Fits 2007-2014 Mercedes-Benz CL550, N/A
• Fits 2007-2014 Mercedes-Benz CL600, N/A
• Fits 2008-2014 Mercedes-Benz CL63 AMG, N/A
• Fits 2007-2014 Mercedes-Benz CLS63 AMG, N/A
• Fits 2012-2013 Mercedes-Benz S350, N/A
• Fits 2010-2013 Mercedes-Benz S400, N/A
• Fits 2007-2013 Mercedes-Benz S550, N/A
• Fits 2011-2013 Mercedes-Benz S63 AMG, N/A
• Fits 2010-2012 Mercedes-Benz GL350, N/A
• Fits 2007-2012 Mercedes-Benz GL450, N/A
• Fits 2008-2012 Mercedes-Benz GL550, N/A
• Fits 2010-2012 Mercedes-Benz GLK350, N/A
• Fits 2006-2012 Mercedes-Benz R350, N/A
• Fits 2007-2012 Mercedes-Benz SL550, N/A
• Fits 2009-2012 Mercedes-Benz SL63 AMG, N/A
• Fits 2006-2011 Mercedes-Benz C350, N/A
• Fits 2003-2011 Mercedes-Benz G55 AMG, N/A
• Fits 2003-2011 Mercedes-Benz ML350, N/A
• Fits 2010-2011 Mercedes-Benz ML450, N/A
• Fits 2008-2011 Mercedes-Benz ML550, N/A
• Fits 2007-2011 Mercedes-Benz ML63 AMG, N/A
• Fits 2011 Mercedes-Benz SL65 AMG, N/A
• Fits 2005-2009 Mercedes-Benz SL65 AMG, N/A
• Fits 2005-2010 Mercedes-Benz SLK55 AMG, N/A
• Fits 2006-2009 Mercedes-Benz CLK350, N/A
• Fits 2007-2009 Mercedes-Benz CLK550, N/A
• Fits 2003-2009 Mercedes-Benz E320, N/A
• Fits 2009 Mercedes-Benz GL320, N/A
• Fits 2009 Mercedes-Benz ML320, N/A
• Fits 1998-2003 Mercedes-Benz ML320, N/A
• Fits 2007-2009 Mercedes-Benz R320, N/A
• Fits 2004-2009 Mercedes-Benz SL600, N/A
• Fits 2007-2008 Mercedes-Benz CLK63 AMG, N/A
• Fits 2002-2008 Mercedes-Benz G500, N/A
• Fits 2003-2008 Mercedes-Benz SL55 AMG, N/A
• Fits 2003-2007 Mercedes-Benz C230, N/A
• Fits 2006-2007 Mercedes-Benz C280, N/A
• Fits 2006-2007 Mercedes-Benz R500, N/A
• Fits 2005-2006 Mercedes-Benz C55 AMG, N/A
• Fits 2003-2006 Mercedes-Benz CLK500, N/A
• Fits 2003-2006 Mercedes-Benz CLK55 AMG, N/A
• Fits 2006 Mercedes-Benz CLS500, N/A
• Fits 2006 Mercedes-Benz CLS55 AMG, N/A
• Fits 2003-2006 Mercedes-Benz E500, N/A
• Fits 2003-2006 Mercedes-Benz E55 AMG, N/A
• Fits 2003-2006 Mercedes-Benz SL500, N/A
• Fits 2001-2005 Mercedes-Benz C240, N/A
• Fits 2001-2005 Mercedes-Benz C320, N/A
• Fits 2003-2005 Mercedes-Benz CLK320, N/A
• Fits 2002-2005 Mercedes-Benz ML500, N/A
• Fits 2002-2004 Mercedes-Benz C32 AMG, N/A
• Fits 2000-2003 Mercedes-Benz ML55 AMG, N/A
• Fits 1999-2001 Mercedes-Benz ML430, N/A

Quality Assurance

Global Parts 1711726 is built for HVAC relay service in Mercedes-Benz climate control systems and is listed with multiple interchange references for application matching. Confirm connector shape, terminal count, and vehicle fitment before installation.