OVERVIEW
Factory combination bolt for the assigned control arm joint
N-912-289-01 is the Genuine VW/Audi M10 x 70 combination bolt used at the specified suspension control arm mounting position. Its working length and bearing arrangement are selected for the original joint.
Several different fasteners can be used around one suspension arm and knuckle. Match this complete factory number to the exact bolt being removed instead of relying on a general arm name or vehicle model alone.
Technical details
- Complete factory number: N-912-289-01.
- Factory specification: M10 x 70 mm.
- Design: hexagon-head combination suspension fastener.
- Quantity supplied: one individual bolt.
M10 identifies the nominal thread diameter and 70 mm is the catalog length. The selected dealer catalog marks this mounting bolt as hardware that cannot be reused or reinstalled after removal.
Common reasons to replace
- The original bolt was removed during the assigned suspension repair.
- The threads are damaged or cross-threaded.
- The hexagon head or bearing area is damaged.
- Corrosion prevents reliable seating and controlled tightening.
- An earlier repair installed an incorrect fastener.
Inspect the control arm, bushing, mounting bracket and mating threads. A bolt replacement does not correct bushing movement, a bent arm or damaged mounting surfaces.
Vehicle fitment
The table lists confirmed selected configurations. Match the original bolt number and exact suspension joint before installation.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A4 | 2020 | 2.0L turbocharged gasoline I4 | B9 sedan; Premium Plus; front-wheel drive; Selected suspension control arm mounting position | Original N91228901 location in the selected suspension assembly; verify the exact arm and joint. |
| Audi A4 | 2020 | 2.0L turbocharged gasoline I4 | B9 sedan; Premium; quattro; Selected suspension control arm mounting position | Original N91228901 location in the selected suspension assembly; verify the exact arm and joint. |
| Audi A4 allroad | 2021 | 2.0L turbocharged gasoline I4 with mild-hybrid system | B9 wagon; Premium Plus; quattro; Selected suspension control arm mounting position | Original N91228901 location; dealer catalog specifies bolt cannot be reused. |
Installation guidance
Use new hardware and follow the factory procedure for the identified suspension connection. Support the suspension correctly, observe any required normal-ride-height tightening position and apply the specified torque and angle sequence.
Check secure seating and complete the alignment and functional checks required by the suspension repair. Replace any associated hardware that the factory procedure also marks for renewal.
Ordering information
Supplied individually as one genuine bolt. Control arms, bushings, nuts and other fasteners are separate. Confirm the VIN, exact joint and required quantity before ordering.