BMW e36 OEM Jack hole receptacle Cover plug set ( 4 ) 3 series rocker panel cap Set of 4 (four) jack receptacle covers (under door sill). These commonly fall off, showing an ugly hole or making wind noise. Genuine BMW. These are PRIMERED and ready for painting if desired, though most people use them as is because they are grey. Cover up those un-sightly holes and reduce whistling noises.