Repairing Subframe Mounting Threads

Repairing Subframe Mounting Threads

=> [ Thread Repair Set Contents ]

=> [ Repairing Threads ]

CAUTION!
Observe safety precautions! Refer to

• 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 set M 12x1.5 (VAS 6058)

• Drill machine (VAS 6267)





1 Threaded Plate in Retaining Bracket for Subframe

• Threaded plate is not a replacement part and may only be repaired once if damaged.

• If damaged once again, the retaining bracket must be replaced. Replace retaining bracket => [ Subframe Mounting Bracket ] Subframe Mounting Bracket.

2 Helicoil Thread Insert

Thread Repair Set Contents





1 Spiral Drill 12.5 mm

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

Repairing Threads

Drilling Threads

- Drill out the threads with the spiral drill.





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

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

• Do not angle the drill.





Cutting Threads

- Cut the threads with the thread tap.





- Clean threaded bushing (blow with pressurized air).

Threaded Inserts

- Screw threaded 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 thread insert driver tang using tang breaker.





- Install subframe.