Shop › BMW E30 325I Late Model Coolant Reservoir Expansion Tank With Cap Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 BMW E30 325I Late Model Coolant Reservoir Expansion Tank With Cap $50.00 BMW E30 325I Late Model Coolant Reservoir Expansion Tank With CapRemoved from 1990 325i. Add To Cart Added! BMW E30 325I Late Model Coolant Reservoir Expansion Tank With CapRemoved from 1990 325i.