OVERVIEW
Genuine VW/Audi N-106-608-01 is an individual socket-head bolt for the assigned original exhaust connection. In the confirmed Jetta TDI profiles below, the original parts information identifies it at the exhaust damper or adapter attachment point.
Technical details and what is included
- Factory number: N-106-608-01 / N10660801.
- Component: individual socket-head fastening bolt.
- Factory nominal designation: M6 × 25.
- Quantity supplied: one individual bolt.
- The archive photograph shows the recessed head, collar and threaded shank.
- The confirmed exhaust diagram identifies the corresponding damper/adapter assembly separately, including 03L131111E where originally fitted.
The nominal M6 × 25 designation describes the bolt specification, not shipping dimensions. This factory number can appear at other assigned component points, but the published table below is specific to the verified exhaust attachment. Select the bolt by its original number and exact diagram position.
Nearby exhaust and EGR components use different fasteners. N10156009 and other neighboring bolts have their own assignments and should not be treated as equivalent merely because they appear on the same diagram. A general exhaust-bolt listing does not establish that this part replaces every screw in the system.
Common reasons to replace
- The original bolt is missing during exhaust damper or adapter service.
- The drive recess or threads have been damaged.
- Inspection identifies corrosion or other damage that prevents correct fastening.
- The specified original bolt is needed after prior work used incorrect hardware.
- The applicable repair procedure requires replacement of the disturbed fastener.
Check the mating threads, attachment flange and component before fitting new hardware. A damaged adapter, leaking gasket or distorted mounting point needs separate repair. A new bolt alone does not diagnose an exhaust leak, repair a damaged particulate filter or correct a malfunctioning emissions component.
Vehicle fitment
The table retains the original diesel engine, body and model-year restrictions. The 2009 wagon assignment is listed separately from the sedan application. Match the exact installed connection and original part number before ordering.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Volkswagen Jetta | 2009–2010 | 2.0L TDI common-rail diesel inline-four | Mk5 sedan; front-wheel drive; 6-speed manual / 6-speed DSG | Assigned original exhaust damper/adapter bolt point, including the original 03L131111E damper connection where fitted. Confirm N10660801 at the exact attachment; adjacent EGR-tube bolts are different. |
| Volkswagen Jetta SportWagen | 2009 | 2.0L TDI common-rail diesel inline-four | Wagon; front-wheel drive; original 2009 exhaust assembly; 6-speed manual / 6-speed DSG | Original damper/adapter attachment specifying N10660801; the original part note explicitly includes wagon 2009 only. Do not transfer that wagon application to later years or gasoline engines. |
Installation and service guidance
Allow the exhaust system to cool and follow the factory procedure for the specific assembly. Support the component as required, inspect the receiving threads and use the correctly assigned gasket or other sealing hardware when the procedure calls for it.
Use the tool specified for the installed bolt's drive and follow the factory tightening sequence and torque for that exact connection. Confirm any required hardware renewal and do not substitute an unverified fastener grade, length or generic tightening value.
After reassembly, complete the prescribed attachment and leak checks for the work performed. This listing supplies one bolt; dampers, adapters, gaskets, EGR components, exhaust assemblies and other hardware are separate.