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Ignition Timing

NOTE: Ignition timing on all models is controlled by an electronic control unit which processes input from engine sensors and computes correct timing. No ignition timing adjustments are possible.
IGNITION TIMING (DEGREES BTDC @ RPM)

Application Timing
325 Series & 528e 4-12 @ 700
535i, 535is, 635CSi, L6, 735i & L7 6-14 @ 700