12 12 011 Replacing all spark plugs (M60, M62): Installation:
WARNING: This page is about a different car, the 2003 BMW X5, 2002 BMW X5, 2001 BMW X5, and 2000 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
Tighten down spark plugs with special tool 12 1 171 and special tool 12 1 200 (torque limiter).
Without special tool 12 1 200, observe tightening torque.
Tightening torque, see 12 12 1AZ in ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .