Grille for heater air inlet, remove and install.
Left grille : Lift left wiper arm to approximately 45°, lift cap from end of arm and lower arm.
Left grille : Remove 13mm nut from wiper arm and remove arm.
Pry grilles up at arrowed points with a flat screwdriver.
E30 M3 Repair Manual V2.7. Copyright ©1999-2001 Koala Motorsport & Brett Anderson