BMW X3 Service & Repair Manual > Ignition wires, spark plugs: Remove and install/replace all spark plugs (N52T)
Special tools required:
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Necessary preliminary tasks:
Switch off ignition.
Remove IGNITION COILS.
IMPORTANT:
Wear safety goggles. Oil and dirt particles may get into your eyes!
Clean spark plug slot with compressed air.
1. Remove dirt contamination from the spark p ...