31 00... Notes On Repairing Threads

WARNING: This page is about a different car, the 2010 BMW M5, 2009 BMW M5, 2008 BMW M5, 2007 BMW M5, and 2006 BMW M5. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Install Heli-coil thread inserts so that they are flush with the original thread.

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

Fig 1: Identifying Damaged Thread

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Procedure:

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

Fig 2: Creating Clean Core Hole
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Create locating thread for Heli-coil thread insert

Fig 3: Creating Heli-Coil Thread
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Pick out Heli-coil thread insert in accordance with the table and screw into the locating thread until flush with the original thread

Fig 4: Creating Heli-Coil Thread
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Break drive pin and remove

Fig 5: Identifying Break Drive Pin
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