OVERVIEW
Genuine Engine and Exhaust Mounting Stud
The N-044-520-3 Genuine VW/Audi stud renews the original fastening point on the matched engine or exhaust assembly. The two threaded ends and central unthreaded section provide the geometry assigned to this OEM fastener. Depending on the engine, its catalogued use includes an exhaust manifold, turbocharger flange or connecting pipe. Confirm the position in the original diagram before ordering.
Technical Details
- OEM part number: N-044-520-3.
- Threaded exhaust stud; match N0445203 and the original installed dimensions. Public catalogs use different length designations, so no single overall length is assigned here.
- Threaded stud with two threaded sections and a central plain section.
- Supplied individually; nuts, gaskets and other mounting hardware are separate.
- Application and required quantity depend on the original engine and exhaust arrangement.
The stud is not a universal replacement for every exhaust fastener on a compatible vehicle. Match the bore, complete part number, seating arrangement and original mounting location. A similar-looking stud can have a different installed depth or projecting threaded length.
Common Reasons to Replace
- The original stud has broken during removal or exhaust service.
- Threads are stripped, cross-threaded, corroded or otherwise damaged.
- The stud is bent or missing.
- A previous repair installed hardware of the wrong length or diameter.
- The applicable repair procedure requires renewed mounting hardware.
Heat cycles and corrosion can make exhaust fasteners difficult to remove. Inspect the receiving threads and associated nuts during the repair. A new stud cannot correct a cracked flange, damaged gasket surface or stripped threaded hole. If an exhaust leak is present, identify the leaking joint and inspect the complete mounting arrangement.
Installation and Service Notes
Allow the exhaust to cool and follow the workshop procedure for access and removal. If a stud is broken, resolve the extraction and receiving-thread condition before installing the new part. Set the installed depth and use the correct nut and gasket arrangement for the application. Follow the specified sequence and tightening requirements; do not infer them from the M10 size alone.
The fastening count varies by assembly. For example, the catalogued 2.0T Eos and Mk5 GTI/Jetta turbo-to-downpipe connection uses four of this stud, but this listing supplies one. Do not apply that count to the VR6 manifold or other engine configurations without checking the original diagram.
Vehicle Fitment
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A3 | 2006–2013 | 2.0L turbocharged FSI or TSI gasoline | 8P; FWD or quattro; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Audi A3 | 2006–2009 | 3.2L VR6 gasoline | 8P; quattro; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Audi A4 | 1997–2001 | 1.8L turbocharged gasoline | B5; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Audi A4 | 2002–2005 | 1.8L turbocharged gasoline | B6; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen Eos | 2007–2015 | 2.0L turbocharged gasoline | ; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen GTI | 2006–2009 | 2.0L turbocharged gasoline | Mk5; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen GTI | 2010–2014 | 2.0L turbocharged gasoline | Mk6; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen Jetta GLI | 2006–2009 | 2.0L turbocharged gasoline | Mk5; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen Passat | 1998–2005 | 1.8L turbocharged gasoline | B5 / B5.5; front-wheel drive; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen Passat | 2006–2010 | 2.0L turbocharged gasoline | B6; front-wheel drive; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen Passat | 2006–2008 | 3.6L VR6 gasoline | B6; FWD or 4Motion; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen R32 | 2004 | 3.2L VR6 gasoline | Mk4; 4Motion; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen R32 | 2008 | 3.2L VR6 gasoline | Mk5; 4Motion; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen Cabrio | 1995–2002 | 2.0L gasoline | Mk3-based Cabrio; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen Corrado | 1990–1992 | 1.8L supercharged gasoline | G60; Match original flange / fastening arrangement; not restricted by transmission in source | Original engine/exhaust fastening position specifying N0445203. Position varies by engine; confirm full part number and original diagram. Other engine configurations excluded. |
| Volkswagen Tiguan | 2009–2011 | 2.0L turbocharged TSI gasoline | First-generation SUV; front-wheel drive; 6-speed manual | Original turbocharger-to-downpipe fastening position specifying N0445203. Match original flange and stud; nuts and gasket supplied separately. |
| Volkswagen Tiguan | 2012–2017 | 2.0L turbocharged TSI gasoline | First-generation SUV; front-wheel drive; 6-speed automatic | Original turbocharger-to-downpipe fastening position specifying N0445203. Match original flange and stud; nuts and gasket supplied separately. |
| Volkswagen CC | 2013 | 2.0L turbocharged TSI gasoline | Sedan; front-wheel drive; 6-speed manual | Original turbocharger-to-downpipe fastening position specifying N0445203. Match original flange and stud; nuts and gasket supplied separately. |
Ordering Notes
Confirm the VIN, engine and exact mounting point. No strength class, thread pitch, material, torque or shipping weight is assigned without a verified exact-part specification. The seven-image gallery repeats the available original archive photograph with distinct descriptive metadata. Repeated photographs do not indicate a multi-piece stud kit.
