HomeURO 4A0905849B Ignition Switch
Part #: 4A0905849B

URO 4A0905849B Ignition Switch

⚙️ 106 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$18.62Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
Out of Stock
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi, Porsche, and Volkswagen, 100, 100 Quattro, 200, 200 Quattro, 5000 Quattro, 80, 80 Quattro, 90, 90 Quattro, 911, A4, A4 Quattro, A6, A6 Quattro, A8, A8 Quattro, Boxster, Cabriolet, Coupe Quattro, Passat, S4, S6, and V8 Quattro
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Ignition Switch for Audi, Porsche, and Volkswagen Vehicles

The URO Ignition Switch 4A0905849B is designed to provide consistent and dependable ignition performance for select Audi, Porsche, and Volkswagen models. This ignition switch ensures proper electrical connection for starting your vehicle and maintaining ignition system integrity.

  • Compatible with Audi 80, 80 Quattro, 90, 90 Quattro, 100, 100 Quattro, 200, 200 Quattro, A4, A4 Quattro, A6, A6 Quattro, A8, A8 Quattro, S4, S6, and V8 Quattro models
  • Fits Porsche 911, 5000 Quattro, Boxster, Cabriolet, and Coupe Quattro
  • Also compatible with Volkswagen Passat
  • OEM part number 4A0905849B ensures precise fit and function
  • Durable construction designed for long-term use in ignition systems

Product Details and Compatibility

This ignition switch from URO is engineered to meet the specifications of the original equipment manufacturer for a range of Audi, Porsche, and Volkswagen vehicles. The part number 4A0905849B corresponds to a direct replacement ignition switch that maintains the electrical pathways necessary for starting and operating your vehicle’s ignition system. It is compatible with multiple Quattro models, including the Audi 80 Quattro, 90 Quattro, 100 Quattro, and others, as well as Porsche models like the 911 and Boxster. Volkswagen Passat owners will also find this ignition switch suitable for their vehicle’s ignition needs.

Common Applications and Problem Resolution

  • Resolves ignition switch failure causing intermittent or no start conditions
  • Addresses electrical connection issues within the ignition system
  • Replaces worn or damaged ignition switches that affect key turn and start function
  • Eliminates ignition switch-related dashboard warning lights or electrical faults
  • Restores proper ignition circuit continuity for reliable vehicle operation

Installation Notes and Tips

Installation of the URO ignition switch 4A0905849B should be performed by a qualified automotive technician familiar with Audi, Porsche, and Volkswagen electrical systems. Ensure the vehicle battery is disconnected before beginning installation to prevent electrical shorts. Verify compatibility with your specific vehicle model and year prior to installation. Proper alignment and secure mounting of the ignition switch are critical for optimal performance.

Quality Assurance and Warranty

URO ignition switches are manufactured to meet or exceed OEM standards for fit, form, and function. While specific warranty details are not provided, URO products typically come with a limited warranty against defects in materials and workmanship. For warranty information, please refer to the product documentation or contact the distributor.

This part fits 106 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2003Porsche9113.6LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2003PorscheBoxster2.7LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2003PorscheBoxster3.2LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2002Porsche9113.6LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2002PorscheBoxster2.7LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2002PorscheBoxster3.2LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2001AudiA4N/A
2001AudiA4 QuattroN/A
2001AudiA6 QuattroAvantN/A
2001AudiA6 QuattroBase2.8LV6N/A
2001Porsche9113.4LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2001PorscheBoxster2.7LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2001PorscheBoxster3.2LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2000AudiA4N/A
2000AudiA4 QuattroN/A
2000AudiA6 QuattroAvantN/A
2000AudiA6 QuattroBase2.8LV6N/A
2000Porsche911N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2000PorscheBoxster2.7LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
2000PorscheBoxster3.2LH6N/ABlack Version Switch; Only for Models with Early-Style lock assembly
1999AudiA4N/A
1999AudiA4 QuattroN/A
1999AudiA6 QuattroN/A
1999Porsche911N/ABlack Version Switch; Only for Models with Early-Style lock assembly
1999PorscheBoxsterN/ABlack Version Switch; Only for Models with Early-Style lock assembly
1998AudiA4N/A
1998AudiA4 QuattroN/A
1998AudiA6N/AChassis Range: To 070000
1998AudiA6 QuattroN/A
1998AudiCabrioletN/A
1998PorscheBoxsterN/A
1998VolkswagenPassatN/AChassis Range: Thru 3B-W-068247
1997AudiA4N/AChassis Range: Thru 8D-V-240000
1997AudiA4 QuattroN/AChassis Range: Thru 8D-V-240000
1997AudiA6N/A
1997AudiA6 QuattroN/A
1997AudiA8N/AChassis Range: Thru 4D-V-020000
1997AudiA8 QuattroN/A
1997AudiA8 Quattro4.2LV8N/A
1997AudiCabrioletN/A
1997PorscheBoxsterN/A
1996AudiA4N/A
1996AudiA4 QuattroN/A
1996AudiA6N/A
1996AudiA6 QuattroN/A
1996AudiCabrioletN/A
1996AudiS6N/A
1995Audi90N/A
1995Audi90 QuattroN/A
1995AudiA6N/A
1995AudiA6 QuattroN/A
1995AudiCabrioletN/A
1995AudiS6N/A
1994Audi100N/A
1994Audi100 QuattroN/A
1994Audi90N/A
1994Audi90 QuattroN/A
1994AudiCabrioletN/A
1994AudiS4N/A
1994AudiV8 QuattroN/A
1993Audi100N/A
1993Audi100 QuattroN/A
1993Audi90N/A
1993Audi90 QuattroN/A
1993AudiS4N/A
1993AudiV8 QuattroN/A
1992Audi100N/A
1992Audi100 QuattroN/A
1992Audi80N/A
1992Audi80 QuattroN/A
1992AudiS4N/A
1992AudiV8 QuattroN/A
1991Audi100N/A
1991Audi100 QuattroN/A
1991Audi200N/A
1991Audi200 QuattroN/A
1991Audi80N/A
1991Audi80 QuattroN/A
1991Audi90N/A
1991Audi90 QuattroN/A
1991AudiCoupe QuattroN/A
1991AudiV8 QuattroN/A
1990Audi100N/A
1990Audi100 QuattroN/A
1990Audi200N/A
1990Audi200 QuattroN/A
1990Audi80N/A
1990Audi80 QuattroN/A
1990Audi90N/A
1990Audi90 QuattroN/A
1990AudiCoupe QuattroN/A
1990AudiV8 QuattroN/A
1989Audi100N/A
1989Audi100 QuattroN/A
1989Audi200N/A
1989Audi200 QuattroN/A
1989Audi80N/A
1989Audi80 QuattroN/A
1989Audi90N/A
1989Audi90 QuattroN/A
1988Audi5000 Quattro2.3LL5N/A
1988Audi80N/A
1988Audi80 QuattroN/A
1988Audi90N/A
1988Audi90 QuattroN/A
1987Audi5000 Quattro2.3LL5N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

201-18164A0 905 849B4A0 905 849B-E4A0905849B4A0905849BMY803 54011 066803 54011 500803 54011 738URO-002934V15-80-3217

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.