OVERVIEW
Genuine VW/Audi starter mounting bolt, part number N-911-296-01. This original fastener secures the starter to the transmission case at its designated mounting position. One bolt is supplied.
Technical details
- Original number: N-911-296-01 / N91129601.
- Published nominal catalog designation: M12 x 100 x 90.
- External twelve-point head with flange, as pictured.
- Application: specified starter-to-transmission-case attachment.
- Starter, transmission and other mounting hardware are separate.
The starter mounting connection locates and retains the starter at the transmission case. The correct hardware is necessary for the prescribed attachment. The catalog designation above must be matched to the original part number; it does not make this bolt interchangeable with every M12 fastener.
A starter can use different bolts at its mounting points. N91129601 is the long fastener for its assigned position, while another position can require a different length or thread. Compare the actual starter and gearbox arrangement before ordering.
Common reasons to replace
Inspect the mounting bolts when removing or replacing the starter or performing work that requires it to be detached. Replace missing hardware, damaged threads, rounded head surfaces, deformation or corrosion that prevents correct installation. Follow any factory requirement to renew removed fasteners.
Previous starter replacement can leave incorrect hardware or a bolt that has been forced into damaged threads. Inspect both the fastener and the mounting point. A replacement bolt cannot restore a stripped transmission-case thread or repair a damaged starter mounting flange.
Slow cranking, no-crank operation or starting noise requires diagnosis of the starting system. This is mounting hardware and does not replace the starter motor, solenoid, battery, cables or control circuit. Correct the diagnosed fault and inspect the mounting arrangement during repair.
Installation and service notes
Use the factory starter removal and installation procedure for the exact vehicle, engine and transmission. Follow the prescribed electrical isolation steps before working at the starter power connections. Support the starter during removal rather than leaving its weight on the wiring.
Identify each mounting position and compare the original fastener. Inspect the starter flange, transmission-case seating surfaces and mating threads. Ensure the starter is the correct component for the fitted engine and gearbox.
Seat the starter correctly and start the assigned bolt by hand in undamaged threads. Do not use the bolt to pull a misaligned starter into place or overcome abnormal resistance. Other bolts, brackets and electrical connection hardware must also match their specified positions.
Engage a correctly sized twelve-point socket fully on the head. Follow the factory tightening sequence, thread preparation and tightening requirement for the attachment. Do not substitute a general M12 torque value or a specification from another starter configuration.
Observe all wiring routing and cable securing requirements during reassembly. Confirm the electrical terminals and protective covers are restored as prescribed and that no cable is trapped by the starter or mounting hardware.
After assembly, complete the required starting-system checks and confirm normal starter operation. This listing supplies one mounting bolt; obtain the starter and remaining repair components separately.
Fitment
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A4 allroad | 2015 | 2.0L turbocharged flex-fuel | B8.5 wagon, quattro; Original factory arrangement | Premium Plus wagon, quattro. Specified starter-to-transmission-case mounting position requiring N91129601. Match actual starter and gearbox arrangement; other starter bolts differ. One bolt supplied. |
| Audi A4 allroad | 2020 | 2.0L turbocharged gasoline | B9 wagon, Prestige, quattro; Original factory arrangement | Specified starter-to-transmission-case mounting position requiring N91129601. Match actual starter and gearbox arrangement; other starter bolts differ. One bolt supplied. |
| Audi A4 allroad | 2021 | 2.0L turbocharged gasoline with mild-hybrid system | B9 wagon, Prestige, quattro; Original factory arrangement | Specified starter-to-transmission-case mounting position requiring N91129601. Match actual starter and gearbox arrangement; other starter bolts differ. One bolt supplied. |
Confirm N91129601 at the assigned starter-to-transmission mounting position. One bolt supplied.