2011-2014 Audi A8/S8 Lane Change Assist Button / Switch 4H1927451
OEM Part #: 4H1-927-451 (4H1927451)
Actual photo
The exact part you’ll receive — not a stock photo.
$5.99
Used
Donor2011 Audi A8 · 4.2L
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Genuine OEM Used
SKU: 435579
Donor Vehicle: 2011 Audi A8 · 4.2L
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$5.99
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This used OEM Audi lane change assist button, part number 4H1927451, is the genuine switch that activates the lane change assist system on compatible A8 and S8 models. Also known as a lane change assist switch, it controls the radar-based blind-spot monitoring function—when faulty, the system may fail to engage or give false warnings. Removed from a donor vehicle and ready for install.
Specifications
| Fits Vehicle Model | A8, S8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4H1-927-451 (4H1927451) |
| Category | Interior Switch |
Compatible Vehicles
Fits 18 vehicle configurations across 1 make, 2011-2014.
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.
View all 18 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2014 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2013 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | |
| 2013 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2014 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2014 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2013 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2013 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2013 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2013 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | |
| 2012 | Audi | A8 | Quattro L Sedan | 6.3L W12 | |
| 2012 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2012 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2011 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2011 | Audi | A8 | Quattro Sedan | 4.2L V8 |