1996-2007 Audi / Porsche / Volkswagen EGR / Combi Valve Left 078131101N
OEM Part #: 078-131-101-N (078131101N)
Actual photo
The exact part you’ll receive — not a stock photo.
$10.99
Side: Left
Used
Donor2000 Audi A4 · 2.8L
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Genuine OEM Used
SKU: 669423
Donor Vehicle: 2000 Audi A4 · 2.8L
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$10.99
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Genuine OEM Used
SKU: 615276
Donor Vehicle: 2001 Audi A6 · 2.8L
3 photos
$10.99
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Genuine OEM Used
SKU: 702089
Donor Vehicle: 2003 Volkswagen PASSAT · 2.8L
2 photos
$10.99
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Used OEM Audi EGR / Combi Valve with part number 078131101N, also replacing 078131101F, 078131101AD, 078131101AC, and 078131101AG. This left-side exhaust gas recirculation valve controls the flow of recirculated exhaust back into the intake. When it fails, you may notice a check engine light, rough idle, or reduced engine performance. It fits naturally aspirated V6 and V8 engines from Audi, Porsche, Volkswagen, and related models.
Specifications
| Fits Vehicle Model | A4, A6, A8, Cayenne, Passat, Phaeton, S6, S8, Touareg |
| Fits Vehicle Make | Audi, Porsche, Volkswagen |
| OEM Part No | 078-131-101-N (078131101N) |
| Compatible OEM Part No | 078-131-101-F, 078-131-101-AD, 078-131-101-AC, 078-131-101-AG |
| Side | Left |
| Category | Fuel / Emissions |
Compatible Vehicles
Fits 88 vehicle configurations across 3 makes, 1996-2007.
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 88 vehicle configurations — 19 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 1996 | Audi | A4 | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 1996 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 1997 | Audi | A4 | Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 1997 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA |
| 1998 | Audi | A4 | Wagon | 2.8L V6 | |
| 1998 | Audi | A4 | Sedan | 2.8L V6 | |
| 1998 | Audi | A4 | Quattro Wagon | 2.8L V6 | |
| 1998 | Audi | A4 | Quattro Sedan | 2.8L V6 | |
| 1998 | Audi | A6 | Sedan | 2.8L V6 | |
| 1998 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 1999 | Audi | A4 | Sedan | 2.8L V6 | |
| 1999 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 1999 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 1999 | Audi | A6 | Sedan | 2.8L V6 | |
| 1999 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 1999 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2000 | Audi | A4 | Sedan | 2.8L V6 | |
| 2000 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2000 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2000 | Audi | A6 | Sedan | 2.8L V6 | |
| 2000 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 2000 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2000 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2000 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2000 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2001 | Audi | A4 | Sedan | 2.8L V6 | |
| 2001 | Audi | A4 | Quattro Wagon | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2001 | Audi | A4 | Quattro Sedan | 2.8L V6 | For Vehicles with Engine Code(s) AHA, ATQ |
| 2001 | Audi | A6 | Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2001 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2001 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2001 | Audi | S8 | Sedan | 4.2L V8 | |
| 2002 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2002 | Audi | A8 | Quattro Sedan | 4.2L V8 | |
| 2002 | Audi | A8 | Quattro L Sedan | 4.2L V8 | |
| 2002 | Audi | S6 | Wagon | 4.2L V8 | |
| 2002 | Audi | S8 | Sedan | 4.2L V8 | |
| 2003 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2003 | Audi | S6 | Wagon | 4.2L V8 | |
| 2004 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2004 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2005 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2005 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2006 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2006 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2007 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2007 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Vehicles with Engine Code(s) BFM, BGK |
| 2004 | Porsche | Cayenne | SUV | 3.2L V6 | |
| 2005 | Porsche | Cayenne | SUV | 3.2L V6 | |
| 2006 | Porsche | Cayenne | SUV | 3.2L V6 | |
| 1998 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 1998 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 1999 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 1999 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2000 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2000 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2000 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2000 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2001 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2001 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2001 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2001 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2002 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2002 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2002 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2002 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2003 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2003 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2003 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2003 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2004 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2004 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2004 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2004 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2004 | Volkswagen | Phaeton | Sedan | 4.2L V8 | |
| 2004 | Volkswagen | Touareg | SUV | 4.2L V8 | |
| 2005 | Volkswagen | Passat | 4 Sedan | 2.8L V6 | |
| 2005 | Volkswagen | Passat | 4 Wagon | 2.8L V6 | |
| 2005 | Volkswagen | Passat | Sedan | 2.8L V6 | |
| 2005 | Volkswagen | Passat | Wagon | 2.8L V6 | |
| 2005 | Volkswagen | Phaeton | Sedan | 4.2L V8 | |
| 2005 | Volkswagen | Touareg | SUV | 4.2L V8 | |
| 2006 | Volkswagen | Phaeton | Sedan | 4.2L V8 | |
| 2006 | Volkswagen | Touareg | SUV | 4.2L V8 | For Vehicles with Engine Code(s) AXQ |
| 2007 | Volkswagen | Touareg | SUV | 4.2L V8 | For Vehicles with Engine Code(s) AXQ |