2012-2018 Audi Lane Change Assist Button / Switch 4G1927451A
OEM Part #: 4G1-927-451-A (4G1927451A)
Actual photo
The exact part you’ll receive — not a stock photo.
$5.99
Used
Donor2018 Audi S6 · 4.0L · 51k miles
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Genuine OEM Used
SKU: 558915
Donor Vehicle: 2018 Audi S6 · 4.0L · 51k miles
2 photos
$5.99
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Genuine OEM Used
SKU: 666277
Donor Vehicle: 2017 Audi A7 · 3.0L · 43k miles
2 photos
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Genuine OEM Used
SKU: 547118
Donor Vehicle: 2018 Audi A6 · 2.0L · 50k miles
2 photos
$5.99
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Genuine OEM Used
SKU: 306890
Donor Vehicle: 2012 Audi A7 · 3.0
2 photos
$5.99
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Genuine OEM Used
SKU: 583579
Donor Vehicle: 2013 Audi A7 · 3.0L · 75k miles
2 photos
$5.99
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Genuine OEM Used
SKU: 548912
Donor Vehicle: 2012 Audi A7 · 3.0L
2 photos
$5.99
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Genuine OEM Used
SKU: 636991
Donor Vehicle: 2018 Audi S6 · 4.0L · 73k miles
2 photos
$6.68
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Genuine OEM Used
SKU: 696058
Donor Vehicle: 2016 Audi A6 · 2.0L
2 photos
$6.99
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Genuine OEM Used
SKU: 661651
Donor Vehicle: 2016 Audi A7 · 3.0L
2 photos
$6.99
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Genuine OEM Used
SKU: 650212
Donor Vehicle: 2016 Audi S6 · 4.0L
2 photos
$6.99
30-Day Returns
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A used genuine Audi Lane Change Assist Button / Switch, OEM part number 4G1927451A. This button activates the lane change warning system, which alerts the driver to vehicles in the blind spot. A common failure symptom is the button not illuminating or failing to engage the system, requiring replacement.
Specifications
| Fits Vehicle Model | A6, A7, RS7, S6, S7 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4G1-927-451-A (4G1927451A) |
| Category | Interior Switch |
Compatible Vehicles
Fits 48 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
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 48 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2015 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2017 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2017 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2017 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | |
| 2018 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2018 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | |
| 2017 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2016 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2015 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2016 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | |
| 2017 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | |
| 2017 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2012 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2014 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | |
| 2018 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | |
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2018 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2016 | Audi | A7 | Quattro Hatchback | 3.0L V6 Diesel Turbo | |
| 2014 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | |
| 2014 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2014 | Audi | A6 | Quattro Sedan | 3.0L V6 Diesel Turbo | |
| 2014 | Audi | A7 | Quattro Hatchback | 3.0L V6 Diesel Turbo | |
| 2014 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2014 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2012 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2012 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | |
| 2013 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | |
| 2013 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2013 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2013 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2013 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2013 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2016 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2016 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | |
| 2016 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2016 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Diesel Turbo | |
| 2015 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | |
| 2015 | Audi | A6 | Quattro Sedan | 3.0L V6 Diesel Turbo | |
| 2015 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | A6 | Sedan | 2.0L l4 Turbo | |
| 2015 | Audi | S6 | Sedan | 4.0L V8 Turbo |