31 00... Notes on repairing threads

WARNING: This page does not describe the selected car, but rather 11 other vehicles, including the 2013 BMW 328i, 2012 BMW 328i, 2011 BMW 328i, 2010 BMW 335i, and 2010 BMW 328i. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Install Helicoil thread inserts so that they are flush with the original thread.

NOTE: Damaged threads in engine carrier may be repaired with Helicoil thread inserts. Comply with the procedure described in the example.

Fig 1: Identifying Helicoil Damaged Thread

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Procedure:

Create a clean core hole; if necessary, drill out screw remnants

Fig 2: Drilling Out Screw Remnants
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Create locating thread for Helicoil thread insert

Fig 3: Making Thread For Helicoil Thread
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Pick out Helicoil thread insert in accordance with the table and screw into the locating thread until flush with the original thread

Fig 4: Removing Helicoil Thread
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Break drive pin and remove

Fig 5: Identifying Drive Pin
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