Audi A4/A4 allroad/A5/S4/S5 AC Hose / Line / Pipe 8W0816721BC
OEM Part #: 8W0-816-721-BC (8W0816721BC)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
Other AC Hoses / Lines And Fittings that may fit your vehicle
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OEM: 8W0816743BP
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AC Hose / Line / Pipe for Audi A4, A5 - 8W0816721BC This A/C refrigerant discharge hose is designed for specific Audi models, ensuring optimal function in your vehicle's air conditioning system. It replaces a faulty line that can result in refrigerant leaks and reduced cooling efficiency. Compatible with Audi A4 (2017-2023), A5 Quattro (2017-2023), and A5 Sportback (2017-2023) models equipped with 2.0L L4 engines. Commonly referred to as a discharge line or front press hose, this part is essential for maintaining the integrity of the A/C system. Alternative part numbers include 8W0816721AS. Installation may require an o-ring, which is not included. Box Dimensions: 8" H x 25" L x 12" W.
Specifications
| Fits Vehicle Model | A4, A4 allroad, A5, S4, S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8W0-816-721-BC (8W0816721BC) |
| Compatible OEM Part No | 8W0-816-721-AS |
| Category | Air Conditioning |
Compatible Vehicles
Fits 72 vehicle configurations across 1 make, 2017-2025.
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 72 vehicle configurations — 52 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2017 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2017 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2017 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2017 | Audi | S5 | Coupe | 3.0L V6 Supercharged | For Vehicles with Production Date After 12/04/17 |
| 2018 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2018 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2018 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2018 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2018 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2018 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2018 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2018 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2018 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2019 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2019 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2019 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2019 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2019 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2019 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2019 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2019 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2019 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2020 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2020 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2020 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2020 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2020 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2020 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2020 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2020 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2020 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2021 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2021 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2021 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2021 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2022 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2022 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2022 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2022 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2021 | Audi | A4 allroad | Wagon | 2.0L l4 Turbo | |
| 2021 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2021 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2021 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2021 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2022 | Audi | A4 allroad | Wagon | 2.0L l4 Turbo | |
| 2022 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2022 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2022 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2022 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2023 | Audi | A4 allroad | Wagon | 2.0L l4 Turbo | |
| 2023 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2023 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2023 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2023 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2023 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2023 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2023 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2023 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2024 | Audi | A4 allroad | Wagon | 2.0L l4 Turbo | |
| 2024 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2024 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2024 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2024 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2024 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2024 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2024 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2024 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2025 | Audi | A4 allroad | Wagon | 2.0L l4 Turbo | 2017-25 |
| 2025 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 12/04/17 |
| 2025 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 12/04/17 |