355 M5.2 coolant temp | FerrariChat
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355 M5.2 coolant temp

Discussion in '348/355' started by alexpivo52, Jun 4, 2025.

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  1. alexpivo52

    alexpivo52 Karting

    Apr 5, 2014
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    Maryland, US
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    Alex
    #1 alexpivo52, Jun 4, 2025
    Last edited: Jun 4, 2025
    Is it normal for the 355 M5.2 to have the coolant temperature to always be changing depending on the outer temperature and the air flow to the radiators? on a +17C(63F) on the pic. it is about 140F (+60C) and on a hot day with a +28C (82F) it's going between 185F (+85C) while on the move to 220F (104F) on a traffic light standing still?

    Both L and R fans are working on/off when standing still.

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  2. Qavion

    Qavion F1 World Champ
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    Ian Riddell
    #2 Qavion, Jun 4, 2025
    I think fans and thermostats are very crude ways of controlling temperatures to a fixed value. There has to be some temperature change, otherwise the fans won't know when to turn on.

    If you're worried about your gauge readings, just make sure that the gauge temperatures roughly match the ECU sensed temperatures. i.e. plug in your scanner to see how close the temperature sensor value is to your display? They use different sensors.

    Sometimes people fit different sensors to their cars depending on whether they live in a predominantly hot or cold area. Do you know the car's history?
     
    308 GTB likes this.
  3. alexpivo52

    alexpivo52 Karting

    Apr 5, 2014
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    Maryland, US
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    Alex
    #3 alexpivo52, Jun 4, 2025
    Hey long time no see!

    Is your pup having always the same water temp or it varies during the ride?
     
    Qavion likes this.
  4. Qavion

    Qavion F1 World Champ
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    #4 Qavion, Jun 4, 2025
    Hi, Alex. After my coolant temperature rises, I tend to ignore it for the rest of the drive.

    I recall there was a thread on this topic, but a search for "water temperature" or "coolant temperature" gets too many hits.
     
  5. Qavion

    Qavion F1 World Champ
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    #5 Qavion, Jun 4, 2025
  6. m.stojanovic

    m.stojanovic F1 Rookie
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    Miroljub Stojanovic
    #6 m.stojanovic, Jun 5, 2025
    The temp variations you are having is not normal. It could be caused by a faulty or stuck open thermostat.
     
    Carmellini, flash32 and Qavion like this.

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