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Direct Ignition System (DIS)

Measure primary coil resistance between terminal No. 1 and terminal No. 15. See Fig 1. Secondary coil resistance cannot be measured. See IGNITION COIL RESISTANCE  table.

Fig 1: DIS Ignition Coil Schematic & Terminal Identification
G91C16487Courtesy of BMW OF NORTH AMERICA, INC.
IGNITION COIL RESISTANCE - Ohms @ 68°F (20°C)

Primary Secondary
.8 (1) Not Measurable
(1) Specification is approximate