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Mondeo thermostat

  • 18-01-2014 10:57pm
    #1
    EIALB2
    Registered Users, Registered Users 2 Posts: 9 ✭


    Does anyone know if all mk3 mondeos have an electrical connection on the thermostat? The one I took off didn't have one and I expected to see one as I thought they all had it. Must not have been a genuine part. But I don't see the connection for the plug on the new one. Other than that the temperature runs close to perfect now, though it runs 1 degree hotter than it should causing the fan to come on early.


Comments

  • #2
    alias no.9
    Registered Users, Registered Users 2 Posts: 6,352 ✭✭✭alias no.9


    EIALB2 wrote: »
    Does anyone know if all mk3 mondeos have an electrical connection on the thermostat? The one I took off didn't have one and I expected to see one as I thought they all had it. Must not have been a genuine part. But I don't see the connection for the plug on the new one. Other than that the temperature runs close to perfect now, though it runs 1 degree hotter than it should causing the fan to come on early.

    if you're talking about the thermostat that controls coolant circulation then they don't normally have an electrical connector


  • #3
    guil
    Registered Users, Registered Users 2 Posts: 10,534 ✭✭✭✭guil


    The mk3 Mondeo has an electronically controlled thermostat. It's on the inlet instead of the outlet and supposedly offers better control of the engine temp. A new one from ford is €125


  • #4
    fergaldevlin
    Closed Accounts Posts: 7 ✭fergaldevlin


    Most of the Mondeos in RoI do not have the high temp electrical over-heat safety protection. This connector Thermostat operates at =>98'C and the Thermostat without the connector operates at =>90'C. The connector thermostat can operate up to 105'C before fully open. Say you decided to rev the engine hard all of a sudden the ECU senses this and "Opens" the thermo in advance to "Protect" the engine as it may heat faster then the "Mechanical" thermostat can open and damage the engine. I have fitted the Connector thermostat instead of standard thermostat to avail of the extra heat in the cabin in winter and the increase in fuel economy without any problems. Consider, a faulty thermostat with or without a high limit connector can fail in the closed position and boil the engine anyway. IMO.


  • #5
    fergaldevlin
    Closed Accounts Posts: 7 ✭fergaldevlin


    Most of the Mondeos in RoI do not have the high temp electrical over-heat safety protection. This connector Thermostat operates at =>98'C and the Thermostat without the connector operates at =>90'C. The connector thermostat can operate up to 105'C before fully open. Say you decided to rev the engine hard all of a sudden the ECU senses this and "Opens" the thermo in advance to "Protect" the engine as it may heat faster then the "Mechanical" thermostat can open and damage the engine. I have fitted the Connector thermostat instead of standard thermostat to avail of the extra heat in the cabin in winter and the increase in fuel economy without any problems. Consider, a faulty thermostat with or without a high limit connector can fail in the closed position and boil the engine anyway. IMO. A connector thermostat on ebay is £20 incl free P&P as of 1st Mar '15


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