I have a 1984 123. On Sunday we had cold weather so I plugged in the block heater. Its dead, well after 7 years what can I expect. Instead of replacing the block heater I am considering going to an in-line coolant heater that circulates warm coolant through out the block, head and heater core. May I hear the wisdom and experience of this august group as to the advantages or disadvantages of a block heater vs. circulating heater.
T. Schooner