Audi A6/A7 Coolant Reservoir Breather Hose / Line Rear 4G0121081ED
OEM Part #: 4G0-121-081-ED (4G0121081ED)
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 Coolant Hose / Pipe / Line that may fit your vehicle
Coolant / Water Hose
$16.99
Fits 2015–2026 Audi
OEM: 06E121082S
Coolant / Water Hose
$7.21
Fits 2016–2018 Audi A6
OEM: 4G0121448BM
Coolant / Water Hose
$7.21
Fits 2016–2018 Audi A6
OEM: 4G0121056AH
Coolant / Water Hose
Starting at $12.99
Fits 2013–2024 Audi
OEM: 06E121030H
Coolant / Water Hose
Starting at $12.99
Fits 2016–2018 Audi A6 / A7
OEM: 4G0122096AD
Coolant / Water Hose
$13.71
Fits 2016–2018 Audi A6 / A7
OEM: 4G0121445AS
- Genuine OEM — real photos
- 30-day returns on eligible parts
- eBay Top Rated · 100,000+ positive ratings
- Ships from our own indoor warehouse
Specifications
| Fits Vehicle Model | A6, A7 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4G0-121-081-ED (4G0121081ED) |
| Compatible OEM Part No | 4G0-121-081-DL |
| Side | Rear |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 6 vehicle configurations across 1 make, 2016-2018.
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 6 vehicle configurations — 6 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Vehicles with Production Date After 09/21/15 |
| 2016 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Vehicles with Production Date After 09/21/15 |
| 2017 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Vehicles with Production Date After 09/21/15 |
| 2017 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Vehicles with Production Date After 09/21/15 |
| 2018 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Vehicles with Production Date After 09/21/15 |
| 2018 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Vehicles with Production Date After 09/21/15 |