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Opel Astra 2 G 2.0 16V: Radiator Fan Continues Running Post Engine Shutdown

Jasviz 56169 20
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Why does the radiator fan on an Opel Astra G 2.0 16V keep running after the engine is turned off, and how can it be fixed?

The fan keeps running because the fan control module is faulty; replacing the module fixed the problem [#14838763] Check the module in the bumper on the driver’s side, pull it out, and inspect the relay contacts [#14830588][#14831154] One suggested test was to unplug the temperature sensor and see whether the fan still spins, which helps rule the sensor out [#14828848] In this case the final repair was a module replacement, after which everything worked normally [#14838763]
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  • #1 14827393
    Jasviz
    Level 8  
    Posts: 8
    Rate: 12
    Hello!
    I have an Opel Astra 2 G 2.0 16V and I have a problem, namely the radiator fan works all the time and even after turning off the engine it does not turn off. You have to choose a fuse or disconnect the clamp. I have some suspicions that this is a broken module. Thank you in advance for any help :D
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    #2 14827400
    andrzej20001
    Level 43  
    Posts: 17695
    Help: 1568
    Rate: 6610
    Air conditioning working?
  • #3 14827408
    Jasviz
    Level 8  
    Posts: 8
    Rate: 12
    Air-conditioning works the most
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    #4 14827422
    ToJestNick
    Level 31  
    Posts: 2948
    Help: 150
    Rate: 555
    And did you give the fan some work? After all, there is a thermal switch there and after the engine cools down, it should turn it off.
  • #5 14827429
    Jasviz
    Level 8  
    Posts: 8
    Rate: 12
    Just as I leave the car overnight without a fuse and in the morning I will come in and put the fuse in, that's also the case, so it's probably not it. How would the sensor also be replaced
  • #6 14827503
    grala1
    VAG group specialist  
    Posts: 9812
    Help: 1495
    Rate: 5036
    Do you have 2 fans there? They both walk together, which gear?
    Which fuse are you pulling out?
    It would be useful to check if the relay in the fan controller is stuck.
  • #7 14828337
    Jasviz
    Level 8  
    Posts: 8
    Rate: 12
    There is not one fan :) And I take the fuse out 40A (I don't know how to explain it XD)
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    #8 14828848
    nioop

    Home appliances specialist  
    Posts: 3359
    Help: 503
    Rate: 3319
    and did you check the sensor?
    I know that the new one .. But I am equally skeptical about the new ones ..
    Just unplug the plug from it and tell if the fan is still spinning.
    Company Account:
    Kawa i Naprawa - Serwis AGD
    Powstańców Śląskich 63, Warszawa, 01-355 | Company Website: https://www.kawainaprawa.eu
  • #9 14828870
    Strumien swiadomosci swia
    Level 43  
    Posts: 27411
    Help: 1403
    Rate: 6379
    Buddy, is this astra 2002R.
  • #10 14828961
    Jasviz
    Level 8  
    Posts: 8
    Rate: 12
    This sensor was checked by the electronics and everything is fine with him. And the astra is from 2000
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    #11 14829002
    nioop

    Home appliances specialist  
    Posts: 3359
    Help: 503
    Rate: 3319
    Jasviz wrote:
    This sensor was checked by the electronics and everything is fine with him


    And with the electronics everything is okey? ;) I'm joking of course..
    Do you know what it's like to trust an electronics engineer instead of yourself? ;)
    Removing the ankle costs you nothing, it will take you about 1 minute and you will have one certainty.
    Company Account:
    Kawa i Naprawa - Serwis AGD
    Powstańców Śląskich 63, Warszawa, 01-355 | Company Website: https://www.kawainaprawa.eu
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    #12 14829196
    Strumien swiadomosci swia
    Level 43  
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    Jasviz wrote:
    I have some suspicions that this is a broken module
    Jasviz wrote:
    There is not one fan


    Buddy, where did you break the second fan?
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  • #13 14829755
    grala1
    VAG group specialist  
    Posts: 9812
    Help: 1495
    Rate: 5036
    Give a picture of the relay box under the hood.
  • #14 14829783
    Jasviz
    Level 8  
    Posts: 8
    Rate: 12
    I mean, one fan works all the time and the other one turns off normally.
    Attachments:
    • Opel Astra 2 G 2.0 16V: Radiator Fan Continues Running Post Engine Shutdown 20150707_102858.jpg (1.35 MB) You must be logged in to download this attachment.
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    #15 14829792
    grala1
    VAG group specialist  
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    Then pull out the controller and check the relay contacts.
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    #16 14829870
    Strumien swiadomosci swia
    Level 43  
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    What controller, since, has one fan and a relay, as you can see, controlled from the engine's ecu.
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    #17 14829940
    grala1
    VAG group specialist  
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    After all, he wrote that he has two fans and one runs all the time, so how do you want to have two fans connected separately to two relays where they control two gears?
    I haven't seen two fans without a driver yet.
    Although you are right that the relays are in the place where the relays should be from controlling the fans by the ECU.
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    #18 14830588
    Strumien swiadomosci swia
    Level 43  
    Posts: 27411
    Help: 1403
    Rate: 6379
    KOlego do you have a fan module in the wheel arch, did you look at it?
    The indicator of the damaged cooling system on the meter / is on?
  • #19 14831146
    Jasviz
    Level 8  
    Posts: 8
    Rate: 12
    The module is in the bumper on the driver's side. And the lamp is sometimes holy, sometimes not
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    #20 14831154
    grala1
    VAG group specialist  
    Posts: 9812
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    Pull out the module and check the relay contacts.
  • #21 14838763
    Jasviz
    Level 8  
    Posts: 8
    Rate: 12
    Thanks to everyone for your advice and suggestions :) it turned out to be a faulty module. I replaced it and everything is fine and whirring :D
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Topic summary

✨ The discussion revolves around a persistent issue with the radiator fan in an Opel Astra 2 G 2.0 16V, which continues to run even after the engine is turned off. The user suspects a faulty module as the cause. Various contributors inquire about the air conditioning status, the functionality of the thermal switch, and the presence of two fans. Suggestions include checking the fan relay, the sensor, and the fan module located in the bumper. Ultimately, the user confirms that the problem was resolved by replacing a faulty module, restoring normal operation of the fan.
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