190e Temerature gauge

Discussion in 'Engine' started by 94mattda, Apr 17, 2014.

  1. 94mattda

    94mattda Hardcore MB Enthusiast

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    Good evening guys, I have searched the forum threads but can't get an answer. My 1.8 190e temperature gauge is always on the low side, generally around 40 - 70 degrees. There are no driving issues at all but I would have though it should be at least 80 - 100 degrees especially when in traffic and long journeys. Should I change the thermostat? Can this be a problem?
     
  2. stwat

    stwat Hardcore MB Enthusiast

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    Hi.

    I would change the thermostat and give the coolant a flush and change.
     
    1 person likes this.
  3. Stratman

    Stratman Hardcore MB Enthusiast

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    Another vote for the thermostat.
     
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  4. OP
    OP
    94mattda

    94mattda Hardcore MB Enthusiast

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    Thank you will try that. Does it affect the car if te thermostat runs cool.
     
  5. stwat

    stwat Hardcore MB Enthusiast

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    The engine won't be running at it's optimum performance when it's not fully up to temp. It will use more fuel and cause more engine wear.
     
  6. brens-e200

    brens-e200 Hardcore MB Enthusiast

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    +1 for the thermostat & coolant change . been there done that now nice and cosy
     
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  7. SL300-24

    SL300-24 Hardcore MB Enthusiast

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    Mine runs at around 85 degrees with a new thermostat installed
     
  8. rawc43

    rawc43 Hardcore MB Enthusiast

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    sound to me like the cooling fan is staying on
     
  9. spanner

    spanner Hardcore MB Enthusiast

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    A distinct possibility, probably caused by someone by-passing a failed thermo switch which was causing overheating. It's a far more common problem than the thermostat on the 102 engine.
     
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  10. OP
    OP
    94mattda

    94mattda Hardcore MB Enthusiast

    Messages:
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    Car:
    Mercedes 190
    Bought the thermostat today and new seals etc, till out the three bolts on the thermostat cover, nice and easy I thought but the thermostat won't come out, I took out the black rubber seal and tried to lift, twist etc but I can't get the thermostat out... Any suggestions as I don't want to damage anything else
     
  11. OP
    OP
    94mattda

    94mattda Hardcore MB Enthusiast

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    Can't get it out!!!!

    Tried tried and tried again but the thermostat won't turn or pull out :( also noticed this sensor just behind it as it was a bit loose. Seems to have white paste in it, any ideas?
     

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