Mercedes-Benz Forum banner

1 - 1 of 1 Posts

·
Registered
Joined
·
85 Posts
Discussion Starter #1
Hello all, looking for any insight as to what might be causing this. I am in central BC and it is starting to get quite cold here (-15 C this morning) so I am plugging the car in (1988 300TE)

I installed my own recirculating heater by teeing into the hoses on either end of the electric coolant pump, and the heater itself is low down in the engine compartment. Theory is that the heater heats the coolant which then rises to the heater core, and pulling cold coolant from the engine side. I think it is working quite well, maybe too well. This morning I had the heater on for about an hour and when I went out I can hear a definite clicking sound at the front driver side of the engine. It certainly sounds like an electric relay clicking on and off in about a 5 second cycle - click.......click........click......click.....etc. Any ideas what this might be? I am sure it is temp related because it does not do the clicking until after it has been plugged in for an hour or so.
 
1 - 1 of 1 Posts
Top