I didn't see any dipstick on my E70 at all (MY08 E70 3.0 si)

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E70 MY08 3.0si Space Grey, Sport steering wheel, Titanium Grill, Titanium lower grill, Sidestep, and more to come

E60 MY05 525i SE Silver Grey, M5 mirrors, Hartge Classic II 20", Eibach Spring, M Sport Trunk spoiler.