BMW Z4 sDrive28i Owner's Manual page 206

Reference
Capacities
Fuel tank
Window washer system
Including headlamp washers
206
Technical data
US gal/liters Approx. 14.5/55
US qt/liters
Online Edition for Part no. 01 40 2 609 184 - 09 11 500
Notes
Fuel quality, refer to page
Approx. 6.3/6.0 Details, refer to page
154
52