Vemo V10-73-0145 Back Up Light Switch

VEMO Back Up Light Switch for OE-Style Replacement

The Vemo V10-73-0145 back up light switch is a 12V electrical switch built for vehicles that use an M14 x 1.5 threaded, 2-pin connection. It is a bolted, push-control switch with a black housing and angular connector shape, made for direct replacement service on select Audi, Porsche, and Volkswagen applications.

Compatible With Porsche 718 Boxster, Porsche 718 Cayman, Porsche Boxster, Porsche Cayman, Audi R8, Audi S4, Audi A4, Audi A4 Quattro, Audi RS4, Audi Allroad Quattro, Audi A6 Quattro, and Volkswagen Passat applications listed below.

• Back up light switch for reverse lamp circuit operation
• 12V rated electrical design
• M14 x 1.5 thread size with bolted mounting
• 2-pole connector with angular plug shape
• Black housing, push-control operating mode
• Supplied without cable
• VEMO part number V10-73-0145

Detailed Product Information

VEMO V10-73-0145 is a back up light switch used to signal reverse gear engagement so the rear lamps illuminate when the transmission is placed in reverse. The switch uses a 2-pin electrical interface, electric operating mode, and compact dimensions for OE-style service replacement. This part cross-references OE-style numbers such as 01E 941 521 A and 01E 941 521 B for the same application. VEMO V10-73-0145 is listed for a wide range of Audi, Porsche, and Volkswagen models, including Audi R8, Audi S4, Porsche Boxster, and Volkswagen Passat.

Vehicle Fitment

• Fits 2017 Porsche 718 Boxster, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2017 Porsche 718 Cayman, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2005-2016 Porsche Boxster, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2014-2016 Porsche Cayman, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2006-2012 Porsche Cayman, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2014-2015 Audi R8, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2008-2012 Audi R8, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2009 Audi R8, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; Back up light switch; With OE No. 01E941521A; VEMO
• Fits 2004-2009 Audi S4, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2005-2008 Audi A4, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2002-2008 Audi A4 Quattro, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2007-2008 Audi RS4, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2002-2005 Audi Allroad Quattro, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2002-2004 Audi A6 Quattro, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2004 Volkswagen Passat, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2002 Volkswagen Passat, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; With OE No. 01E941521A; VEMO
• Fits 2003 Audi Allroad Quattro, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; Back up light switch; With OE No. 01E941521A; VEMO
• Fits 2001 Volkswagen Passat, N/A; Grade: Aftermarket; Thread Size: M14 x 1,5; Plug (Connector): 2 Pins; From Chassis/VIN 3B-1-450 001; With OE No. 01E941521A; VEMO

Common Replacement Symptoms

• Reverse lights do not illuminate when shifting into reverse
• Intermittent backup lamp operation
• Faulty reverse signal to the vehicle lighting circuit
• Transmission reverse switch electrical failure
• Need for OE-number-based replacement on Audi, Porsche, or Volkswagen models

Installation Notes

Verify the thread size, 2-pin connector style, and OE reference before installation. This switch uses bolted mounting and is supplied without cable, so the existing vehicle connector and wiring must match the application. Confirm the vehicle’s reverse-light circuit diagnosis before replacing the part.

Quality Assurance

VEMO V10-73-0145 is an aftermarket electrical replacement built to match the listed OE-style applications for Audi, Porsche, and Volkswagen vehicles. The part number V10-73-0145 and OE references such as 01E 941 521 A help simplify catalog lookup and fitment verification.