Audi A4/A5/S4/S5 Firewall Shroud / Water Box 8W0819523F
OEM Part #: 8W0-819-523-F (8W0819523F)
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 Cowl / Firewall Cover that may fit your vehicle
Cowl Cover / Trim
$32.50
Fits 2020–2025 Audi A5 / S5
OEM: 8W6821169E
Cowl Cover / Trim
$15.63
Fits 2017–2024 Audi A4 / S4
OEM: 8W0821170C
Cowl Cover / Trim
Starting at $17.49
Fits 2017–2024 Audi A4 / S4
OEM: 8W0821169C
Cowl Cover / Trim
Starting at $18.49
Fits 2017–2024 Audi A5 / RS5 / S5
OEM: 8W6821169C
Cowl Cover / Trim
$24.99
Fits 2017–2024 Audi A5 / RS5 / S5
OEM: 8W6821170C
Firewall Water Box End Piece / Cover
$14.99
Fits 2008–2017 Audi
OEM: 8K0971824AD
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The Firewall Shroud, also known as the Water Box (OEM Part Number 8W0819523F), is an essential component located at the rear of the engine bay in Audi vehicles. It serves a critical role in shielding vital engine components from water ingress, which can lead to corrosion and electrical issues. This part directly interfaces with the vehicle's cowl and the windshield wiper assembly, contributing to the overall drainage system that prevents water accumulation. Common issues requiring replacement include damage from accidents or degradation from environmental exposure, potentially leading to leaks or electrical malfunctions. Compatible with Audi A4, A4 Quattro (2017-2023), A5 Sportback (2018-2023), and A5 Quattro (2017-2023), this OEM part ensures optimal performance and reliability in maintaining engine integrity. Other relevant part numbers include 8W0819523C and 8W6863825B.
Specifications
| Fits Vehicle Model | A4, A5, S4, S5 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8W0-819-523-F (8W0819523F) |
| Compatible OEM Part No | 8W0-819-523-C |
| Category | Other |
Compatible Vehicles
Fits 57 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 57 vehicle configurations — 44 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 | |
| 2017 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 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 07/02/18 and 11/25/19 |
| 2018 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2018 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2018 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles With Production date Up To 10/14/19 |
| 2018 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2018 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 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 07/02/18 and 11/25/19 |
| 2019 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2019 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2019 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2019 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2019 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 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 07/02/18 and 11/25/19 |
| 2020 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2020 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2020 | Audi | S4 | Sedan | 3.0L V6 Turbo | |
| 2020 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2020 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date Between 07/30/18 and 11/25/19 |
| 2021 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 10/14/19 |
| 2021 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2021 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2022 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 10/14/19 |
| 2022 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2022 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2021 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 10/14/19 |
| 2021 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date After 07/02/18 |
| 2021 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2021 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2022 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 10/14/19 |
| 2022 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date After 07/02/18 |
| 2022 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2022 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2023 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 10/14/19 |
| 2023 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date After 07/02/18 |
| 2023 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2023 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2023 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 10/14/19 |
| 2023 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2023 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2024 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Production Date After 10/14/19 |
| 2024 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles with Production Date After 07/02/18 |
| 2024 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2024 | Audi | A5 | Hatchback | 2.0L l4 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2024 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 10/14/19 |
| 2024 | Audi | S5 | Coupe | 3.0L V6 Turbo | For Vehicles with Production Date After 07/30/18 |
| 2024 | Audi | S5 | Hatchback | 3.0L V6 Turbo | For Vehicles with Production Date After 07/30/18 |