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Home >> BMW >> 1998 >> 540i Standard >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> ENGINE ELECTRICAL SYSTEM - TECHNICAL DATA - 540i (E39) >> Ignition wire spark >> 12 12 Ignition Harness, Spark Plugs E39

12 12 Ignition Harness, Spark Plugs E39

IGNITION WIRE SPARK SPECIFICATION

Electrode gap on spark plugs
All models except "M" mm 0.7 +0.1
All models with dual mass
electrode
All models with three-mass and four-mass electrode cannot be adjusted!
mm 0.9 +0.1
Coil resistance at 20 °C
Pins 1 and 2 ohm < 1
Firing sequence:
4 cylinders 1,3,4,2
6 cylinders 1,5,3,6,2,4
8 cylinders 1,5,4,8,6,3,7,2
12 cylinders 1,7,5,11,3,9,6,12,2,8,4,10