BMW Genuine Radiator Coolant Expansion Tank Cap E30 E31 E32 E34 E36 E38 E39 E46 318i 318is 840Ci 840i 850Ci 850CSi 735i 735iL 740i 740iL 750iL 525i 530i 535i 540i M5 3.6 318i 318is 318ti 320i 323i 325i 325is 328i M3 M3 3.2 740i 740iL 740iLP 750iL 750iLP 525i 528i 530i 540i 540iP M5 320i 323Ci 323i 325Ci 325i 325xi 328Ci 328i 330Ci 33 BMW Genuine Radiator Coolant Expansion Tank Cap E30 E31 E32 E34 E36 E38 E39 E46 Cooling water expansion tank -- EXPANSION TANK -- expansion tank / mounting plate -- Expansion tank, automatic transmission -- Expansion tank, manual transmission -- Expansion tank/coolant hoses -- EXPANSION TANK/TUBING -- Radiator -- Radiator - c Manufacturer Warranty: 24000 miles or 2 years Please see Product Description below for vehicle compatibility