Subframe Mounting Threads, Repairing

Subframe Mounting Threads, Repairing

=> [ Contents of Thread Repair Set ]

=> [ Threads, Repairing ]


Observe safety precautions.

• In the example, thread repair on this vehicle is described for left front retaining bracket for subframe and is to be employed at the other 3 retaining brackets accordingly as necessary.

Special tools, testers and auxiliary items required

• Thread Repair Kit M12x1.5 (VAS 6058)

• Drill (VAS 6267)






1 Threaded plate (welded into subframe retaining bracket)

• The threaded plate is not a replacement part and may only be repaired once if damaged!

• If damaged again, replace the retaining bracket. Refer to => [ Subframe Retaining Bracket ] Subframe Retaining Bracket.

2 Helicoil thread insert

Contents of Thread Repair Set






1 Spiral drill 12.5 mm diameter

2 Tap M 12 x 1.5

3 Installing spindle

4 Thread insert M 12 x 1.5 x 24 ( (VAS 6058/1) )

5 Peg breaker with magnetic tips

Threads, Repairing

Threads, Drilling

- Drill out the threads with the spiral drill.






- Do not angle the drill.

- For drilling and grinding, use drill (VAS 6267).






• While drilling, drill must be held by a second person using an additional handle.

Threads, Cutting

- Cut the threads with the thread tap.






- Clean threaded bushing (blow with pressurized air).

Thread Inserts, Inserting

- Screw thread insert - 3 - on to installing spindle until drive peg - 2 - makes contact on drive tab - 1 - of installing spindle.






- Screw the threaded insert into the threaded plate until the threaded insert is seated flush with the outer edge of the threaded plate (check visually).






- Then screw the threaded insert in by a 1/4 turn.

• Thread insert must be able to be turned easily.

- Remove the spindle.

- Break off the driver tang of the threaded insert using the tang breaker - 1 -.






- Install subframe (suspension subframe) (tightening specifications) => Suspension, Wheels, Steering 40 Removal and Installation.