URO 4B0905849 Ignition Switch

Ignition Switch for Audi and Volkswagen

This URO ignition switch is a direct-fit OE replacement for vehicles that need restored key rotation and positive starter engagement. It is built for Audi, Volkswagen, and select Porsche applications, including the Audi A4, A6, TT, and Volkswagen Jetta, Golf, and Passat.

• Direct-fit replacement for easy plug-and-play installation
• Restores smooth key rotation and starter engagement when the original switch is worn
• High-quality polymer and corrosion-resistant metal construction
• Alloy conductors help reduce electrical resistance for accurate operation
• Designed and tested for long service life in passenger compartment heat
• Guaranteed fitment for listed applications

Detailed Product Overview

Part number 4B0905849 is an ignition switch designed to replace a failing OE starter switch without changing the factory interface. It is a practical solution for Audi A4, Audi A6 Quattro, Volkswagen Beetle, and Volkswagen Passat ignition switch replacement needs, as well as other listed fitments. This part cross-references Standard Ignition US-398 for the same application.

Common Symptoms This Part Can Address

• Key turns with excess resistance or inconsistent feel
• Starter does not engage reliably when the key is turned
• Intermittent ignition operation
• Wear-related electrical contact issues
• Loss of positive switch engagement in the ignition cylinder assembly

Installation Notes

Verify the part number and vehicle fitment before installation. This ignition switch is a direct replacement for the original OE-style unit and is intended to install using the factory connection points. Confirm chassis notes where listed, including 1997 Audi A4 and A4 Quattro from chassis 8D-V-240001, 1998 Audi A8 Quattro from chassis 000001, and 1998 Volkswagen Passat from chassis 3B-W-068248.

• Fits 1997-2010 Volkswagen Beetle, N/A
• Fits 1999-2006 Volkswagen Golf, N/A
• Fits 2002 Volkswagen Golf, N/A, 12V
• Fits 1999-2005 Volkswagen Jetta, N/A
• Fits 2002 Volkswagen Jetta, N/A, 12V
• Fits 1999-2005 Volkswagen Passat, N/A
• Fits 1998 Volkswagen Passat, N/A, Chassis Range: From 3B-W-068248
• Fits 2004 Volkswagen R32, N/A
• Fits 1997-2009 Audi A4, N/A
• Fits 1997 Audi A4, N/A, From chassis # 8D-V-240001
• Fits 1998-2009 Audi A4 Quattro, N/A
• Fits 1997 Audi A4 Quattro, N/A, Chassis Range: From 8D-V-240001
• Fits 1999-2004 Audi A6, N/A
• Fits 1999-2004 Audi A6 Quattro, N/A
• Fits 2001-2005 Audi Allroad Quattro, N/A
• Fits 1998-1999 Audi A8, N/A
• Fits 1999-2003 Audi A8 Quattro, N/A
• Fits 1998 Audi A8 Quattro, N/A, Chassis Range From 000001
• Fits 2001-2003 Audi S8, N/A
• Fits 2002-2003 Audi S6, N/A
• Fits 2000-2002 Audi S4, N/A
• Fits 2004-2009 Audi S4, N/A
• Fits 2007-2008 Audi RS4, N/A
• Fits 2003-2004 Audi RS6, N/A
• Fits 2000-2006 Audi TT, N/A
• Fits 2000-2006 Audi TT Quattro, N/A
• Fits 2004-2005 Porsche 911, N/A
• Fits 2004 Porsche Boxster, N/A

Quality Assurance

URO backs this ignition switch with a 24 month unlimited mileage warranty. It is manufactured with high-quality materials and tested for long-life operation in demanding cabin temperatures.