Audi A6/A8/Q7/Q8/RS5/S4/S5/S6/SQ5 Coolant Valve 06M121678G
OEM Part #: 06M-121-678-G (06M121678G)
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 Heater Bypass Valve that may fit your vehicle
Coolant / Heater Bypass Solenoid Valve
Starting at $18.99
Fits 2011–2026 Audi & Porsche
OEM: 4H0121670A
Coolant Solenoid / Heater Control Valve Mount Bracket
$19.99
Fits 2017–2026 Audi A8 / Q7 / Q8
OEM: 4N0121305F
Coolant Valve
$70.49
Fits 2017–2024 Audi & Porsche
OEM: 06M121678F
Coolant Valve Shield / Cover
$6.99
Fits 2012–2024 Audi
OEM: 4G0121146
Heater Control Valve
$33.49
Fits 2015–2024 Audi, Porsche + more
OEM: 5Q0906457B
Heater Control Valve
$18.49
Fits 2011–2024 Audi & Porsche
OEM: 4H0121670
- 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, A8, Q7, Q8, RS5, S4, S5, S6, SQ5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 06M-121-678-G (06M121678G) |
| Compatible OEM Part No | 06M-121-678-F |
| Category | Radiator / Coolant |
Compatible Vehicles
Fits 58 vehicle configurations across 1 make, 2017-2023.
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 58 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2017 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2018 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2018 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2018 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2018 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2018 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2018 | Audi | SQ5 | SUV | 3.0L V6 Turbo | |
| 2019 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2019 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2019 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2019 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2019 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2019 | Audi | SQ5 | SUV | 3.0L V6 Turbo | |
| 2020 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2020 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2020 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2020 | Audi | SQ5 | SUV | 3.0L V6 Turbo | |
| 2021 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2021 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2021 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2021 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2021 | Audi | SQ5 | SUV | 3.0L V6 Turbo | |
| 2022 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2022 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2022 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2022 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2022 | Audi | SQ5 | SUV | 3.0L V6 Turbo | |
| 2019 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | A8 | Quattro L Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2020 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2020 | Audi | A8 | Quattro L Sedan | 3.0L V6 Turbo | |
| 2020 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2020 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2020 | Audi | S6 | Sedan | 2.9L V6 Turbo | |
| 2021 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2021 | Audi | A8 | Quattro L Sedan | 3.0L V6 Turbo | |
| 2021 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2021 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2021 | Audi | S6 | Sedan | 2.9L V6 Turbo | |
| 2022 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2022 | Audi | A8 | Quattro L Sedan | 3.0L V6 Turbo | |
| 2022 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2022 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2022 | Audi | S6 | Sedan | 2.9L V6 Turbo | |
| 2023 | Audi | A6 | Quattro Sedan | 3.0L V6 Turbo | |
| 2023 | Audi | A8 | Quattro L Sedan | 3.0L V6 Turbo | |
| 2023 | Audi | Q7 | SUV | 3.0L V6 Turbo | |
| 2023 | Audi | Q8 | SUV | 3.0L V6 Turbo | |
| 2023 | Audi | RS5 | Coupe | 2.9L V6 Turbo | |
| 2023 | Audi | RS5 | Hatchback | 2.9L V6 Turbo | |
| 2023 | Audi | S5 | Convertible | 3.0L V6 Turbo | |
| 2023 | Audi | S5 | Coupe | 3.0L V6 Turbo | |
| 2023 | Audi | S6 | Sedan | 2.9L V6 Turbo | |
| 2023 | Audi | SQ5 | SUV | 3.0L V6 Turbo |