If your car starts to run hot your coolant may be low or tired. Coolant or antifreeze is used to help dissipate the heat from the engine as it circulates through the block and radiators. It is a non corrosive liquid that usually needs to be mixed with water. Radiator coolant levels should be checked frequently and changed according to the owner's manual.
Coolant / Antifreeze (Blue)
528e (1982-88) 533i (1983-84) 535i (1985-88) 535is and M5 (1988)
An excellent additive for cooling systems, Water Wetter reduces coolant temperatures by as much as 30 degrees Fahrenheit. It can be added to new or old antifreeze to improve heat transfer in your cooling system. Water Wetter also reduces scale buildup in cylinder heads for better cooling and keeps water pump seals lubricated for longer life. It also provides excellent corrosion protection for your cooling system. 12 oz.
Note: Local municipal water is passed through a series of multimedia particulate and activated carbon filters. The water is then distilled in a vapor compression stream unit. All dissolved minerals are left behind as the water is vaporized and condensed in a stainless steel still. After filtration and ozonation, the water is promptly bottled.
Besides the fluid the radiator is the most important part of your cooling system. The radiator cycles the hot fluid or coolant from the engine block to dissipate the heat. Radiators work under extreme heat and pressure and can corrode and fail over time. They are usually mounted where air can easily flow through them and this can also cause road debris to cause punctures. Radiators should be checked and flushed according to your owner's manual.
533i with Manual Transmission (1983-84) 535i with Manual Transmission (1985-88) 535is with Manual Transmission (1988)