Radiator dream meaning is explained below using 4 different sources. Each interpretation is shown with its source.

Interpretation 1 — Stearn Robinson - Tom Corbett

Remorse over an alienated friend is signified in a dream of a cold radiator; regret is a futile waste of energy but try to profit from the experience by thinking before you speak in future.

A hissing radiator in your dream is a sharp warning to stop considering a shady deal or furtive affair; if you give in to the temptation, you might mortgage your whole future.

If your dream concerned an overheated car radiator your love life needs unsnarling.

Source: The Complete Guide to Interpreting Your Dreams Author: Stearn Robinson - Tom Corbett

Interpretation 2 — Dr. Mıchael Lennox

An implement for heating an indoor space, a radiator as a symbol in a dream indicates a desire to warm things up in your life. Such warmth can be related to emotional issues, an increase in passion, or anything where an increase in desire is indicated.

A car radiator has the opposite implication—that things need to be cooled down in order to run effectively and efficiently.

Source: Complete Dictionary of Dreams Author: Dr. Mıchael Lennox

Interpretation 3 — Ariadne Green

As the mechanism that cools down the engine, a leak in the radiator may point to an inability to cool down after an argument. In the physical body a radiator in a dream may represent the thyroid gland.
Source: Ariadne's Book of Dream Author: Ariadne Green

Interpretation 4 — Dream Explanations - Anonymous

See Generator.
Source: Strangest Dream Explanations Author: Dream Explanations - Anonymous