Audi A4/S4 Leak Detection Pump Filter / Ldp Vent Line 8W0201997B
OEM Part #: 8W0-201-997-B (8W0201997B)
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This OEM Leak Detection Pump Filter (LDP) is a critical component in maintaining the evaporative emissions system of select Audi models. Part number 8W0201997B, it is designed specifically for the 2017-2023 Audi A4 Allroad and S4, including various engine configurations such as 2.0L L4 and 3.0L V6. This filter ensures efficient operation of the leak detection pump, effectively filtering vapor and contaminants from the system. Common issues it resolves include poor emissions performance and decreased fuel efficiency due to a clogged or damaged filter. Also known as the Vapor Canister Filter or Air Line, this authentic factory-original part guarantees a perfect fit and reliable functionality for your Audi.
Specifications
| Fits Vehicle Model | A4, S4 |
| Fits Vehicle Make | Audi |
| OEM Part No | 8W0-201-997-B (8W0201997B) |
| Compatible OEM Part No | 8W0-906-621-A |
| Category | Fuel / Emissions |
Compatible Vehicles
Fits 19 vehicle configurations across 1 make, 2017-2024.
View all 19 vehicle configurations — 19 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2017 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2018 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2018 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2018 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles With Production date Up To 07/08/19; For Vehicles with Engine Code(s) CWGD |
| 2019 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2019 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2019 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Engine Code(s) CWGD |
| 2020 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2020 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2020 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Engine Code(s) CWGD |
| 2021 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 07/08/19; For Vehicles with Engine Code(s) CWGD |
| 2022 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 07/08/19; For Vehicles with Engine Code(s) CWGD |
| 2021 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2022 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2023 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2023 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 07/08/19; For Vehicles with Engine Code(s) CWGD |
| 2024 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles with Engine Code(s) CYMC, DBPA |
| 2024 | Audi | S4 | Sedan | 3.0L V6 Turbo | For Vehicles with Production Date After 07/08/19; For Vehicles with Engine Code(s) CWGD |