а вот что рекомендуют на 3.0:
12 12 Ignition Harness, Spark Plugs E36 / S50 B 30
Bosch Y5 DDC ECE
NGK BKR 6 EK US
Bosch F7 LDCR US
NGK BKR 6 EQUP (High Power) ECE as of 9/98
ну и еще раз 3.2:
12 12 Ignition Harness, Spark Plugs E36 / S50 B 32
NGK PKR 7A ECE
NGK BKR 6 EQUP (High Power) ECE as of 9/98
и зазоры (на 4-х контактных не замеряют!):
12 12 Ignition Harness, Spark Plugs E36
Electrode gap on spark plugs
All models except "M" mm 0.7 +0.1
M models mm 0.6 +0.1
All models with dual mass mm 0.9 +0.1
electrode
All models with three-mass and four-mass electrode
cannot be adjusted!
Cylinder identifying sensor
Coil resistance at 20 °C
Pins 1 and 2 W < 1
у меня как минимум 2мм (один контакт)
сделаю фотки пришлю.