Audi A4/A5/S4/S5 AC Hose / Line / Pipe 8W0816721BD
OEM Part #: 8W0-816-721-BD (8W0816721BD)
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: 8W0816311
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Fits 2017–2025 Audi
OEM: 8W0816743D
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$41.49
Fits 2017–2024 Audi
OEM: 8W0816743BN
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Starting at $15.99
Fits 2017–2025 Audi
OEM: 8W1816720G
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Starting at $31.99
Fits 2017–2024 Audi
OEM: 8W1816720
AC Hose / Line / Pipe
Starting at $36.49
Fits 2017–2024 Audi
OEM: 8W0816743BP
- Genuine OEM — real photos
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- Ships from our own indoor warehouse
The OEM AC Discharge Hose 8W0816721BD is a crucial component in the air conditioning system of various Audi models, including the A4, A5 Quattro, and A4 allroad from 2017 to 2022. Specifically designed for vehicles utilizing R134a refrigerant and featuring a 2.0L L4 engine, this discharge line connects the compressor to the condenser, ensuring efficient coolant flow and optimal system performance. Common issues such as leaks, wear, or damage can result in reduced AC efficiency or system failure. Also known as the Front Press Hose or Coolantpipe, it complements the overall climate control function by facilitating proper refrigerant pressure. Trust in this authentic OEM part to restore your vehicle's cooling efficacy.
Specifications
| Fits Vehicle Model | A4, A5, S4, S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8W0-816-721-BD (8W0816721BD) |
| Compatible OEM Part No | 8W0-816-721-A |
| Category | Air Conditioning |
Compatible Vehicles
Fits 65 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 65 vehicle configurations — 38 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2017 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2017 | Audi | S5 | Coupe | 3.0L V6 Supercharged | For Vehicles with Production Date After 11/13/17 |
| 2018 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2018 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date Between 02/05/18 and 06/22/20 |
| 2018 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2018 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2018 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2018 | Audi | S5 | Convertible | 3.0L V6 Turbo | For Vehicles with Production Date Between 02/05/18 and 06/22/20 |
| 2018 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2018 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2019 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2019 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2019 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date Between 02/05/18 and 06/22/20 |
| 2019 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2019 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2019 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | S5 | Convertible | 3.0L V6 Turbo | For Vehicles with Production Date Between 02/05/18 and 06/22/20 |
| 2019 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2019 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2020 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2020 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2020 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date Between 02/05/18 and 06/22/20 |
| 2020 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2020 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2020 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2020 | Audi | S5 | Convertible | 3.0L V6 Turbo | For Vehicles with Production Date Between 02/05/18 and 06/22/20 |
| 2020 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2020 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2021 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2021 | Audi | S5 | Convertible | 3.0L V6 Turbo | For Vehicles with Production Date Between 02/05/18 and 06/22/20 |
| 2021 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2021 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2022 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2022 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2022 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2022 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2021 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2021 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date Between 02/05/18 and 06/22/20 |
| 2021 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2021 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2022 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2022 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2022 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2022 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2023 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2023 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2023 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2023 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2023 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2023 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2023 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2023 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2024 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2024 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2024 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2024 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2024 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2024 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2024 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |
| 2024 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 11/13/17 |