OVERVIEW
Genuine shoulder bolt for the original pressure-sensor mount
The N-104-829-02 Genuine VW/Audi shoulder bolt secures the original center crash pressure sensor at the specified mounting points on the configurations below. Its M5×25 factory design is distinct from the hardware used by other crash sensors.
Correct sensor mounting is part of the original restraint-system installation. This listing supplies one mechanical fastener. It does not include an airbag, inflator, sensor, wiring harness or control module.
Technical details
- Complete factory number: N-104-829-02.
- Factory specification: M5 × 25.
- Design: shouldered mounting bolt for the original sensor attachment.
- Quantity supplied: one individual bolt.
The shoulder and head geometry are specific to the retained sensor and mounting point. An ordinary M5 screw with a similar length may not reproduce the original mounting arrangement. Match the exact factory number and sensor position.
Common reasons to replace
- The original sensor mounting bolt is missing during repair.
- The threads are damaged or cross-threaded.
- The shoulder or head has physical damage.
- The original fastener is distorted.
- The factory repair procedure requires replacement of the serviced hardware.
Inspect the sensor mounting surface and receiving threads using the factory procedure. Sensor faults and collision-related repairs require system diagnosis; replacing a bolt alone does not correct a sensor fault or establish that other restraint components are serviceable.
Vehicle fitment
PR 4UF equipment and the original center pressure-sensor mounting arrangement are required. Observe the 2005 B7 VIN branch. Front crash sensors and other sensor locations can use different bolts.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A4 | 2005, 2007 | 2.0L turbocharged gasoline inline-four | B7 sedan with front-wheel drive or quattro; Avant with quattro; Original PR 4UF crash pressure-sensor mounting | PR 4UF equipment and original center pressure sensor 8P0955557 mounting. For 2005, B7 catalog VIN from 8E-5-400001. Not the separate front sensor's M6 hardware. |
| Audi A4 | 2005, 2007 | 3.2L FSI gasoline V6 | B7 sedan or Avant; quattro; Original PR 4UF crash pressure-sensor mounting | PR 4UF equipment and original center pressure sensor 8P0955557 mounting. For 2005, B7 catalog VIN from 8E-5-400001. Not the separate front sensor's M6 hardware. |
| Audi S4 | 2005, 2007 | 4.2L gasoline V8 | B7 sedan or Avant; quattro; Original PR 4UF crash pressure-sensor mounting | PR 4UF equipment and original center pressure sensor 8P0955557 mounting. For 2005, B7 catalog VIN from 8E-5-400001. Not the separate front sensor's M6 hardware. |
Installation guidance
Follow the factory restraint-system isolation, waiting-time and handling procedure before accessing the sensor mount. Preserve the specified sensor orientation and mounting surface condition. Install the correct shoulder bolt using the exact factory procedure and tightening specification.
Complete the required restraint-system diagnostic checks after assembly and restore all connectors and trim correctly. Do not substitute a torque value from another sensor or general M5 hardware.
Ordering information
Supplied as one genuine mechanical bolt. The factory catalog specifies multiple bolts across the vehicle; confirm the quantity for the sensor being serviced. Sensor, airbag components, insert nuts and a complete hardware set are not included.