Audi A4/S4 Ignition Lock Switch / Cylinder w/ Key 8D9800375EP

OEM Part #: 8D9-800-375-EP (8D9800375EP)

This page covers one exact OEM part number. Every unit we stocked has sold.

Programming required: this module must be coded to your VIN by a dealer or with the proper diagnostic tool before it will work.

We may be able to get another

Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:

Other Ignition Switch w/ Key / Cylinder that may fit your vehicle

Ignition Switch 4B0905851B

Ignition Switch

$80.49
Fits 1997–2010 Audi & Volkswagen
OEM: 4B0905851B
Used
  • Genuine OEM — real photos
  • 30-day returns on eligible parts
  • eBay Top Rated · 100,000+ positive ratings
  • Ships from our own indoor warehouse

This OEM Ignition Lock Switch Cylinder with Key is a critical component for maintaining your vehicle’s functionality. Designed for compatibility with a range of Audi models, including the A4 and A4 Quattro (1999-2001) and S4 (2001-2002), this part ensures seamless integration and reliable performance. The part number for this unit is 8D9800375EP, and it addresses common issues such as worn out or damaged ignition systems, restoring the ability to start your vehicle efficiently. As a factory-original part sourced from salvage vehicles, you can trust its authenticity and durability. Ensure your ignition system is in top condition with this exact replacement.

Specifications

Specifications for Ignition Lock Switch / Cylinder w/ Key 8D9800375EP
Fits Vehicle ModelA4, S4
Fits Vehicle MakeAudi
OEM Part No8D9-800-375-EP (8D9800375EP)
CategorySteering Wheel / Parts

Compatible Vehicles

Fits 8 vehicle configurations across 1 make, 1999-2002.

Check your specific vehicle before ordering. This list shows year, make, and model. Some years have multiple trims or engines that use different parts, and individual listings may have additional fitment notes (e.g. “with sunroof only”). Review the full variant list below, or message us with your VIN and we’ll confirm the match.

Audi

  • A4 1999-2001 · 6 variants
  • S4 2001-2002 · 2 variants
View all 8 vehicle configurations
Full vehicle fitment list for Ignition Lock Switch / Cylinder w/ Key 8D9800375EP
Year Make Model Trim Engine Note
1999 Audi A4 Quattro Wagon 1.8L l4 Turbo
1999 Audi A4 Quattro Wagon 2.8L V6
2000 Audi A4 Quattro Wagon 1.8L l4 Turbo
2000 Audi A4 Quattro Wagon 2.8L V6
2001 Audi A4 Quattro Wagon 1.8L l4 Turbo
2001 Audi A4 Quattro Wagon 2.8L V6
2001 Audi S4 Wagon 2.7L V6 Turbo
2002 Audi S4 Wagon 2.7L V6 Turbo

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