Thread on Subframe Mounting

Thread on Subframe Mounting, Servicing


Observe safety precautions.

Special tools, testers and auxiliary items required

• Thread repair set M14x1.5 (VAS 6027)

• Drill (VAS 6267)






1 Threaded sleeve (in vehicle)

• The threaded sleeve is not a replacement part and can be serviced only one time if damaged.

• Replace the longitudinal member if it gets damaged again.

2 Helicoil thread insert

Contents of Thread Repair Set






1 Spiral bore

2 Tap M14x1.5

3 Installing spindle

4 Thread insert M14x1.5x28

5 Peg breaker with magnetic tips

Thread, Servicing

Threads, Drilling

- Drill out thread path up to thread base using spiral bore.






• Use drill (VAS 6267) for drilling and grinding.

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

• Do not angle the drill.






Threads, Cutting


Wear protective eyewear when cutting the thread and when cleaning the threaded bushing with compressed air.

- If the required thread depth is not reached because the bore is placed crooked, a guide bore with a maximum 16 mm diameter dimension - a - and a maximum depth of 20 mm dimension - b - can be drilled.






- Thread is cut using tap until dimension - a - = at least 63 mm.

- Clean threaded bushing (blow with pressurized air).






Thread Inserts, Inserting






- Turn the threaded insert - 3 - onto the spindle until the drive peg - 2 - makes contact on drive tab - 1 - of installing spindle.

- Install threaded insert - 1 - up to dimension - a - 30 mm +1/-3 in threaded sleeve (turn lightly without force).

- Check the dimension with the depth gauge.






- Remove the spindle.

- Break off thread insert driver tang using tang breaker.






- Install the subframe (tightening specifications). Refer to.