2013-2018 Audi A8/RS7/S6/S7/S8 Engine Oil Separator Assembly 079103542E
OEM Part #: 079-103-542-E (079103542E)
Actual photo
The exact part you’ll receive — not a stock photo.
$23.99
Used
Donor2013 Audi S6 · 4.0L · 78k miles
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Genuine OEM Used
SKU: 526541
Donor Vehicle: 2013 Audi S6 · 4.0L · 78k miles
4 photos
$23.99
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Genuine OEM Used
SKU: 638966
Donor Vehicle: 2017 Audi A8 · 4.0L
4 photos
HAS A BROKEN MOUNT, SEE PICTURES
$23.99
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Genuine OEM Used
SKU: 650482
Donor Vehicle: 2016 Audi S6 · 4.0L
3 photos
$26.99
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Genuine OEM Used
SKU: 674704
Donor Vehicle: 2015 Audi A8 · 4.0L
3 photos
$28.49
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A used genuine OEM Audi engine oil separator assembly, part number 079103542E, also known as the crankcase ventilation valve. This unit replaces earlier versions 079103542D and 079103542B. It is specific to the 4.0L 3993CC V8 turbocharged engine found in the A8, RS7, S6, S7, and S8. When this separator fails, it can cause rough idle, excessive oil consumption, or smoke from the exhaust as it fails to properly separate oil from crankcase gases.
Specifications
| Fits Vehicle Model | A8, RS7, S6, S7, S8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 079-103-542-E (079103542E) |
| Compatible OEM Part No | 079-103-542-D, 079-103-542-B |
| Category | Evap / EGR |
Compatible Vehicles
Fits 31 vehicle configurations across 1 make, 2013-2018.
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 31 vehicle configurations — 20 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2017 | Audi | S6 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2018 | Audi | S7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2018 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date After 07/26/16; For Vehicles with Engine Code(s) CRDB, CWUB |
| 2018 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2018 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2018 | Audi | S6 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2016 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2017 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2016 | Audi | S6 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2016 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2016 | Audi | S7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2016 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date After 07/26/16; For Vehicles with Engine Code(s) CRDB, CWUB |
| 2017 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date After 07/26/16; For Vehicles with Engine Code(s) CRDB, CWUB |
| 2017 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2017 | Audi | S7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Production Date After 08/01/16 |
| 2013 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Vehicles With Production date Up To 06/18/15 |
| 2015 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Vehicles With Production date Up To 06/18/15 |
| 2015 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Vehicles With Production date Up To 06/18/15 |
| 2015 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Vehicles with Engine Code(s) CRDB, CWUB |
| 2014 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Vehicles With Production date Up To 06/18/15; For Vehicles with Engine Code(s) CRDB, CWUB |
| 2014 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | |
| 2013 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2014 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2013 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2013 | Audi | S8 | Sedan | 4.0L V8 Turbo | |
| 2013 | Audi | S7 | Hatchback | 4.0L V8 Turbo |