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650i 2D Convertible, Automatic
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Section 688 (Engine Electrical System - Tightening Torques)
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Ignition Wires, Spark Plugs
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12 12 Spark Plugs
12 12 Spark Plugs
WARNING:
This page is about a different car, the 2003 BMW 525i, 2002 BMW 525i, 2001 BMW 525i, and 2000 BMW 528i. However, it is still accessible from the selected car via links, so may be relevant.
SPARK PLUGS - TIGHTENING TORQUE SPECIFICATIONS
Type
Thread
Tightening specification
Measure
1AZ Spark plugs (ungreased)
All
M12x1.25
23 +/- 3 Nm
All
M 14x1.25
30 +/- 3 Nm