BMW Genuine Differential Drain Plug for 1 3 5 6 7 X1 X3 x5 X6 Z3 Z4 Z8 Series for 128i 135i 318i 318is 318ti 320i 323Ci 323i 325Ci 325e 325i 325is 325ix 325xi 328Ci 328i 328xi 330Ci 330i 330xi 335d 335i 335is 335xi 524td 525i 525xi 528e 528i 528iX 528xi 530i 530xi 533i 535i 535iX 535xi 540i 540iP 545i 550i 55 BMW Genuine Differential Drain Plug with O-Ring (22 X 1.5 mm) . Manufacturer Warranty: 12 months / 12000 miles Please see Product Description below for compatible models.