EXPANSION TANK COOLANT FITS: BMW 3 SEDAN 328 I/320 D/323 I/320 I/330 XI/330 I/325 I/325 XI/318 I/318 D/316 I.BMW 3 328 I/320 D/323 I/320. I. We will get back to you as soon as possible in 1-2 working hours and in 24 hours during the weekend.
This new coolant tank cured the mysterious ever present drip from the bottom of the radiator area on my z4. My tip for an easier procedure is to remove the mounting bracket complete with the tank(2 screws,one at the bottom and one rather difficult one at the side). Once out this makes the process of separating the tank from the bracket so much less arduous.