Home >> BMW >> 2021 >> 840i 2D Convertible >> Repair and Diagnosis >> General Information >> OEM General Information >> Maintenance And General Information -- Repair (G14, G15, & G16) >> 00 00 General Maintenance >> 00 00 252 Engine oil service (840i and 840i xDrive coupe/convertible/Gran Coupe sedan) >> Opening the oil filler cap