2015-2017 Audi A8/RS7/S6/S7/S8 Engine Oil Separator Assembly 079103542D
OEM Part #: 079-103-542-D (079103542D)
Actual photo
The exact part you’ll receive — not a stock photo.
$26.49
Used
Donor2016 Audi S6 · 4.0
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Genuine OEM Used
SKU: 443214
Donor Vehicle: 2016 Audi S6 · 4.0
3 photos
$26.49
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Genuine OEM Used
SKU: 612120
Donor Vehicle: 2017 Audi A8 · 4.0L
3 photos
$32.49
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Audi Engine Oil Separator Assembly (OEM 079103542D) is a used, genuine part removed from a donor vehicle. Also known simply as an oil separator, it replaces 079103542B. This component separates oil from crankcase ventilation gases on the 4.0L turbocharged V8 (found in models such as the S6, S7, S8, RS7, and A8 Quattro). A failing separator can cause excessive oil consumption, blue exhaust smoke, or a check-engine light from crankcase pressure issues. Ensure correct fitment for your specific application.
Specifications
| Fits Vehicle Model | A8, RS7, S6, S7, S8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 079-103-542-D (079103542D) |
| Compatible OEM Part No | 079-103-542-B |
| Category | Evap / EGR |
Compatible Vehicles
Fits 14 vehicle configurations across 1 make, 2015-2017.
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 14 vehicle configurations — 14 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 07/26/16; For Vehicles with Engine Code(s) CRDB, CWUB |
| 2016 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2017 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2017 | Audi | S6 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2017 | Audi | S7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2016 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 07/26/16; For Vehicles with Engine Code(s) CRDB, CWUB |
| 2017 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2016 | Audi | S7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2016 | Audi | S6 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2015 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2016 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2015 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2015 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 08/01/16 |
| 2015 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date Between 06/18/15 and 07/26/16; For Vehicles with Engine Code(s) CRDB, CWUB |