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Old 02-24-2011, 08:17 PM
dka-66 dka-66 is offline
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Join Date: Jul 2008
Posts: 162
Can I bypass the secondary water pump

The heater core on my 1989 W124 300TE is leaking, at least I think it is since there is water on the floor in front of the front seats.
I was planning on bypassing the heater core until I get some time to fix it, then I see that the secondary water pump is leaking as well....I was told that the secondary was there for the heating system, if that is true and I need to bypass the heater core then I should be able to bypass that little electric secondary pump right and it should not adversely effect the system right?

Next question......If the system that the coolant runs through is shorter will the coolant temperature be higher?
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