OVERVIEW
Genuine VW/Audi N-909-184-01 is an individual screw for the original air-intake attachment in the verified applications below. The pointed threaded profile and broad head are shown in the archive photograph.
Technical details and contents
- Factory part number: N-909-184-01 / N90918401.
- Factory nominal screw designation: 4.2 × 16.
- Pointed panel-screw profile for its assigned receiver.
- Quantity supplied: one individual screw.
- Adapter, intake hose, housing, seals and other hardware are separate.
The nominal designation describes the functional fastener size, not a packaged shipping measurement. Match the original receiver and mounting location. A standard machine screw with a similar diameter does not automatically provide the correct engagement.
Function at the intake connection
This screw retains the assigned intake connection, including the air-mass-meter attachment where specified. Correct attachment helps keep the adapter located and properly seated with the associated intake components. The screw is mounting hardware; separate seals and intact mating parts are necessary where the assembly requires an airtight connection.
The catalog assignment is specific to the engine and attachment shown in the fitment table. An intake assembly can contain several different screws. This number should not be selected solely because a vehicle has an air filter or an air-mass sensor.
Common reasons to replace
- The screw is missing following air-filter housing or intake service.
- The drive or head is damaged.
- The threaded profile no longer engages the intended receiver correctly.
- The screw is bent or corroded.
- The original fastening hardware has been replaced with an incorrect screw.
Inspect the adapter, mounting boss and mating components before reassembly. If the receiving material is stripped or cracked, a new screw alone will not restore the connection. Do not overtighten the fastener to compensate for damaged receiving threads.
Vehicle fitment
Match the engine, body style and exact intake attachment. Diagram position and component naming vary by application; use the original N90918401 assignment rather than selecting by appearance alone.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi Q5 | 2009–2012 | 3.2L naturally aspirated gasoline V6 | 8R SUV; original air-intake adapter attachment; 6-speed automatic; quattro | Original intake adapter screw at diagram position 9 for the 3.2L configuration. Not an assignment for the 2.0L air-mass-sensor retaining screws. |
| Audi S5 | 2008–2012 | 4.2L naturally aspirated gasoline V8 | B8 Coupe; original intake adapter attachment; 6-speed manual or 6-speed Tiptronic automatic; quattro | Original 4.2L Coupe air-intake/air-mass-meter fastening point 7 specifying N90918401. Excludes 3.0L Cabriolet and later 3.0L Coupe. |
| Audi A5 | 2009–2010 | 3.2L naturally aspirated gasoline V6 | B8 Coupe; quattro; original intake attachment; 6-speed manual / 6-speed Tiptronic automatic | Original 3.2L intake screw at diagram point 8 assigned N90918401. Confirm installed intake and receiver; adjacent N10633202 is a different fastener. |
Installation guidance
Follow the factory intake-service procedure for the exact vehicle. Keep the intake path clean while components are removed and prevent loose hardware from entering the housing or duct. Inspect any disturbed seal and make sure the adapter is aligned before fastening.
Use a correctly fitting tool and start the screw carefully in its intended receiver. Follow the specified tightening instruction for the adapter. Do not substitute a generic torque based on the nominal diameter or use the screw to pull misaligned parts together.
After assembly, confirm that the adapter, housing, hose and associated retainers are seated correctly. If the repair concerns an intake leak or an engine-running fault, complete the required diagnosis and leak checks; replacing this screw alone does not establish the cause of that fault.
Ordering information
This listing supplies one genuine intake adapter screw. The adapter, air filter, sensor, hose, sealing ring and a complete installation kit are not included. Confirm the required quantity and associated repair items before ordering.