2012-2018 Audi A8/S8 Lane Change Assist Button / Switch 4H1927451A
OEM Part #: 4H1-927-451-A (4H1927451A)
Actual photo
The exact part you’ll receive — not a stock photo.
$12.13
Used
Donor2015 Audi A8 · 4.0L
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Genuine OEM Used
SKU: 674389
Donor Vehicle: 2015 Audi A8 · 4.0L
2 photos
$12.13
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Genuine OEM Used
SKU: 638744
Donor Vehicle: 2017 Audi A8 · 4.0L
2 photos
$12.13
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Genuine OEM Used
SKU: 544051
Donor Vehicle: 2014 Audi A8 · 4.0L
2 photos
$12.13
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Genuine OEM Used
SKU: 672230
Donor Vehicle: 2017 Audi A8 · 3.0L
2 photos
$12.13
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Genuine OEM Used
SKU: 577614
Donor Vehicle: 2014 Audi A8 · 4.0L
2 photos
$12.13
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Genuine OEM Used
SKU: 540398
Donor Vehicle: 2014 Audi A8 · 4.0L
2 photos
$12.13
30-Day Returns
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This is a used genuine OEM Lane Change Assist Button / Switch, part number 4H1927451A, removed from a salvage Audi. Also known as the Lane Change Assist Switch, this component activates the blind-spot monitoring system. When the button fails, the system may not engage or the indicator light may remain off, leaving the driver without visual alerts on the mirror.
Specifications
| Fits Vehicle Model | A8, S8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4H1-927-451-A (4H1927451A) |
| Category | Interior Switch |
Compatible Vehicles
Fits 34 vehicle configurations across 1 make, 2012-2018.
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
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message us with your VIN
and we’ll confirm the match.
View all 34 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2016 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2016 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2016 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2017 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2017 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2017 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2018 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2018 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2016 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | |
| 2018 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2016 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2012 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2012 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2012 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2013 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2013 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2013 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2013 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2014 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2014 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2013 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | |
| 2013 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | |
| 2015 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2015 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2014 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo |