SKP SKTS477 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor Overview

The SKP SKTS477 engine coolant temperature sensor monitors coolant temperature for the engine management system. It is a fitment-based replacement for a wide range of Volkswagen and Audi applications with square connector configurations.

Key Features

• Direct replacement coolant temperature sensor for engine temperature monitoring.
• Square connector design with fitment notes that identify 4-pin, 4-terminal, and 4-blade applications.
• Application coverage includes green and blue sensor variants where specified in the fitment data.
• Compatible with many Volkswagen Beetle, Golf, Jetta, Passat, and Audi A4, A6, TT, and S-model applications.
• Part number SKTS477 for catalog and service reference.

Detailed Fitment and Function

SKP SKTS477 is an engine coolant temperature sensor used to report coolant temperature to the vehicle control system so fuel delivery, idle strategy, and temperature-related engine management can operate correctly. This part cross-references Monroe Shocks & Struts (e.g., 059 919 501 A, 078 919 501 C) for the same application. It fits 1997-1998 Audi A4 Quattro, blue; 4 pin; located on thermostat housing; square connector. It fits 1998 Audi A4, 4 pin; square connector. It fits 1998 Audi A4 Quattro, blue; 4 pin; located on coolant crossover tube; square connector. It fits 1998-2004 Audi A6, square connector. It fits 1998-2004 Audi A6 Quattro, square connector. It fits 1998-2002 Volkswagen Beetle, green; square connector. It fits 1999 Audi A4 Quattro, square connector. It fits 1999-2003 Audi A3, square connector. It fits 1999 Audi Jetta, w/ distributor; square connector. It fits 1999 Audi Passat, green; square connector. It fits 1999-2003 Volkswagen EuroVan, 4 term.; square connector. It fits 1999-2006 Volkswagen Golf, square connector. It fits 2000 Audi A8 Quattro, square connector. It fits 2000 Audi TT, square connector. It fits 2000 Audi TT Quattro, square connector. It fits 2000-2001 Volkswagen Jetta, green; square connector. It fits 2000-2002 Audi S4, green; 4 term.; square connector. It fits 2000-2005 Volkswagen Passat, square connector. It fits 2001-2003 Audi S8, green; 4 term.; square connector. It fits 2001-2005 Audi Allroad Quattro, green; 4 pin; square connector. It fits 2001-2006 Audi TT, green; 4 term.; square connector. It fits 2001-2006 Audi TT Quattro, green; 4 term.; square connector. It fits 2002-2003 Volkswagen Jetta, green; 4 pin; square connector. It fits 2002-2004 Audi S6, green; 4 term.; square connector. It fits 2003-2004 Audi RS6, square connector. It fits 2003-2004 Audi S3, green; 4 term.; square connector. It fits 2003-2005 Volkswagen Beetle, square connector. It fits 2004 Audi A8 Quattro, 4 pin; square connector. It fits 2004 Audi S3, green; 4 term.; square connector. It fits 2004 Volkswagen Jetta, green; square connector. It fits 2005 Audi A6, green; 4 blade term.; square connector. It fits 2005 Audi A6 Quattro, green; 4 blade term.; square connector. It fits 2005 Volkswagen Jetta, square connector. It fits 2006-2007 Volkswagen Beetle, green; 4 pin; square connector. It fits 2007-2008 Audi S4, square connector. It fits 2007-2009 Volkswagen CrossFox, square connector. It fits 2008 Audi S5, square connector. It fits 2008 Volkswagen Beetle, 4 pin; square connector. It fits 2009 Audi S4, 4 pin; square connector. It fits 2009 Audi S5, green; 4 pin; square connector. It fits 2009 Audi S6, 4 pin; square connector. It fits 2009 Audi S8, 4 pin; square connector. It fits 2009-2010 Volkswagen Beetle, green; 4 pin; square connector. It fits 2011 Volkswagen CrossFox, square connector. It fits 2012-2013 Volkswagen Beetle, green; 4 pin; square connector.

Common Issues This Sensor Addresses

• Incorrect coolant temperature readings in the engine management system.
• Hard starting or rough idle related to temperature input errors.
• Cooling fan or warm-up strategy concerns caused by a faulty sensor signal.
• Check engine light conditions tied to coolant temperature sensor faults.

Installation Notes and Quality

Verify connector style, terminal count, and any fitment notes before installation, since this application list includes square connector variants with green, blue, 4-pin, 4-terminal, and 4-blade configurations. Confirm the vehicle application against the catalog listing for your Volkswagen Beetle, Golf, Jetta, Passat, or Audi A4, A6, TT, or S-model before replacement. SKP SKTS477 is cataloged as a direct-fit replacement sensor for the listed applications.