2017-2025 Audi A4/A5 Coolant Reservoir Breather Hose / Line 8W0121081EE
OEM Part #: 8W0-121-081-EE (8W0121081EE)
Actual photo
The exact part you’ll receive — not a stock photo.
$8.49
Used
Donor2021 Audi A5 SPORTBACK · 2.0L · 50k miles
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Genuine OEM Used
SKU: 611033
Donor Vehicle: 2021 Audi A5 SPORTBACK · 2.0L · 50k miles
2 photos
$8.49
30-Day Returns
Genuine OEM Used
SKU: 694554
Donor Vehicle: 2025 Audi A5 SPORTBACK · 2.0L
2 photos
$8.49
30-Day Returns
- Genuine OEM — real photos
- 30-day returns on eligible parts
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This used OEM Audi coolant reservoir breather hose (part 8W0121081EE) is the genuine line that vents air from the expansion tank on 2.0L turbocharged engines (including MHEV variants). Also called a coolant breather hose, a cracked or clogged one can cause a coolant odor, minor fluid loss, or air trapped in the system leading to temperature fluctuations. It was removed from a late-model donor and is ready for installation.
Specifications
| Fits Vehicle Model | A4, A5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8W0-121-081-EE (8W0121081EE) |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 36 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 36 vehicle configurations — 36 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2022 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2024 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2019 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2019 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2023 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2023 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 07/08/19 |
| 2021 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2020 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2020 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 07/08/19 |
| 2019 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 07/08/19 |
| 2021 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2021 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 07/08/19 |
| 2024 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2024 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 07/08/19 |
| 2021 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2023 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2017 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Automatic Transmission |
| 2018 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2017 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2017 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Automatic Transmission |
| 2017 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2018 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Automatic Transmission |
| 2019 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 07/08/19 |
| 2018 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2018 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Automatic Transmission |
| 2018 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Automatic Transmission |
| 2022 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 07/08/19 |
| 2024 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2022 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2020 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2022 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2020 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Automatic Transmission; For Vehicles with Production Date After 07/08/19 |
| 2020 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2023 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2019 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |
| 2025 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission; For Vehicles with Production Date After 08/19/19 |