N-107-315-01 Genuine VW/Audi Front Curved Lower Control Arm Bolt

Genuine VW/Audi front curved lower control-arm mounting bolt, part number N-107-315-01. This original collared hex bolt attaches the specified front curved lower control arm to the subframe on the configurations listed below. It is supplied individually for service of that inner suspension connection.

Technical details

• Original number: N-107-315-01 / N10731501.
• Published nominal size: M12 x 1.5 x 118 x 90.
• External hex head with integral collar beneath the head.
• Assigned position: front curved lower control-arm connection at the subframe.
• One bolt supplied. Mating nut, control arm, bushing and subframe are separate.

The front curved lower control arm locates part of the front suspension assembly through its bushing and ball-joint connections. Its inner attachment must use the correct hardware so the arm and mounting point remain properly seated.

This straight mounting bolt differs from the eccentric adjustment hardware used at other front suspension connections. Correct nominal thread size alone does not establish that a bolt fits an inner or other control-arm position. Match the original number and actual attachment point.

Common reasons to replace

Replacement may be needed during front curved lower control-arm, bushing or related suspension service when the factory procedure requires new hardware. Replace damaged threads, a rounded hex head, deformation, missing hardware or corrosion affecting reliable installation.

Earlier repair work may have left a reused or incorrect substitute fastener at the inner arm connection. Inspect the mounting arrangement and obtain the correct bolt and separately specified nut before completing the repair.

Rear suspension noise, movement or alignment changes require inspection of the complete arm, bushings, spring seating and mounting points. A new bolt does not restore a torn bushing, bent control arm, damaged mounting hole or worn suspension component. Resolve the diagnosed defect before reassembly.

Installation and service notes

Follow the factory repair procedure for the exact front curved lower control-arm attachment. Support the vehicle and suspension as specified before releasing the connection. Use the prescribed component support and suspension positioning procedure.

Inspect the subframe mounting faces, arm bushing and fastener holes. Position the components correctly and start the new bolt by hand. Do not use tightening force to pull a misaligned arm into position.

Install the correct associated nut and renew hardware wherever the repair procedure calls for replacement. Follow the specified thread preparation, tightening sequence, suspension position, torque and any additional angle for this exact connection.

Do not transfer a torque value from the another suspension bolt, rear shock bolt or another M12 fastener. Final tightening position can be important for suspension bushings; follow the model-specific procedure rather than assuming the suspension should hang freely.

Complete the prescribed suspension and alignment checks after service. Confirm component seating and clearance before returning the vehicle to use. This listing supplies one original inner mounting bolt; select quantities and additional hardware according to the repair being performed.

Fitment

Confirm the original bolt number and front curved lower control-arm inner position before ordering. One bolt supplied.