2017-2024 Audi A4/A5/RS5/S4/S5 AC Hose / Line / Pipe 8W1816740
OEM Part #: 8W1-816-740 (8W1816740)
Actual photo
The exact part you’ll receive — not a stock photo.
$16.49
Used
Donor2018 Audi A4 · 2.0L · 50k miles
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Genuine OEM Used
SKU: 591747
Donor Vehicle: 2018 Audi A4 · 2.0L · 50k miles
5 photos
$16.49
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Genuine OEM Used
SKU: 555984
Donor Vehicle: 2018 Audi S5 SPORTBACK · 3.0L · 59k miles
5 photos
$16.49
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Genuine OEM Used
SKU: 531489
Donor Vehicle: 2019 Audi A5 SPORTBACK · 2.0L · 50k miles
5 photos
$16.49
30-Day Returns
Genuine OEM Used
SKU: 536002
Donor Vehicle: 2022 Audi A4 · 2.0L · 11k miles
5 photos
$16.49
30-Day Returns
Genuine OEM Used
SKU: 625404
Donor Vehicle: 2019 Audi A5 SPORTBACK · 2.0L · 61k miles
5 photos
$19.49
30-Day Returns
- Genuine OEM — real photos
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Used OEM Audi AC hose/line/pipe, part number 8W1816740. This genuine A/C refrigerant line carries pressurized gas between compressor and condenser. A leaking hose causes gradual refrigerant loss, reduced cooling, and eventual system failure. Fits multiple B9-generation Audi models including A4, A5, S4, S5, and RS5 with 2.0L turbo four-cylinder, 2.9L V6 twin-turbo, or 3.0L V6 engines.
Specifications
| Fits Vehicle Model | A4, A5, RS5, S4, S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8W1-816-740 (8W1816740) |
| Category | Air Conditioning |
Compatible Vehicles
Fits 76 vehicle configurations across 1 make, 2017-2024.
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 76 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2022 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2024 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2023 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2021 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2024 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2024 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2024 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2024 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2024 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2024 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2024 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2024 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2019 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2020 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2020 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2020 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2019 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2020 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2019 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2019 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2020 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2019 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2020 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2020 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2024 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2018 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2017 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2017 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2018 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2019 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2018 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2018 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2018 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2018 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2019 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2023 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2019 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2022 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2023 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2022 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2022 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2020 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2021 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2021 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2022 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2021 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2023 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2022 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2022 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2023 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2021 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2023 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2021 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2023 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2022 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2021 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2023 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2023 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2021 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2022 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2018 | Audi | A5 | Hatchback | 2.0L l4 Turbo | |
| 2019 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2021 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2023 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2022 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2021 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2019 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2020 | Audi | S5 | Hatchback | 3.0L V6 Turbo | |
| 2018 | Audi | S5 | Hatchback | 3.0L V6 Turbo |