Start Stop Button / Engine Switch – 4K1905217

Original engine start and stop button (Start Stop Engine ignition switch), designed for Audi A6 C8, A7 4K, Q7 4M, and Q8 vehicles.

Factory button mounted in the center console, responsible for turning on the ignition and starting and stopping the power unit in vehicles equipped with the Keyless Go keyless access system. Features red lettering illumination and a characteristic illuminated ring.

Technical specifications:

• OE part number: 4K1905217 / 4K1 905 217

• Function: Engine start button / ignition switch (Engine Start Stop)

• Installation side: Front – center console / center tunnel

• Steering wheel side: Left (LHD – European version)

• Condition: Original used part (tested, surface without wear, working illumination, all clips and pins intact)

• Manufacturer: Audi / VAG (OEM Original)

Main applications:

• Audi:

  • A6 / S6 / RS6 Avant & Limousine (C8 / 4K) – model years from 2018 to 2024

  • A6 Allroad (C8 / 4K) – model years from 2019 to 2024

  • A7 / S7 / RS7 Sportback (C8 / 4K8) – model years from 2018 to 2024

  • Q7 / SQ7 (4M) – model years from 2019 to 2024 (after facelift)

  • Q8 / SQ8 / RSQ8 (4MN) – model years from 2018 to 2024

  • E-Tron / E-Tron Sportback (GE) – model years from 2018 to 2024

Fitment guarantee and VIN verification

Each button undergoes inspection for microswitch functionality, proper return of the mechanism spring, and absence of wear on the front surface.

Fitment tip: Before purchasing, make sure that the part number and connector layout match the component removed from your vehicle, or verify compatibility using the VIN.