Radiator Fan Sometimes doesnt work
2004 Citroen C2 1.4sx

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Derek
Driver
1 points

Problem added: Apr 26, 2021 (1 week ago)
i have a interesting problem. My car radiator fan sometimes doesn't work.My car fan run to when temperature is 96 degrees on 1 stage.But sometimes doesnt work and when over 96 degrees , temperature indicator going to up. i was change thermostat , temperature sensor and fan relay.i was learn youtube how to reset bsi and i did. but my problem still going

Sorry my bad english thank you.

Car details
Car: Citroen C2
Variant: 1.4sx
Model Year: 2004
Category: Engine & Drivetrain
Electrics, ECU, Warnings & Lights
Replies and Fixes
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whittingehame
Legend
18,631 points

Apr 26, 2021 (1 week ago)
On a lot of cars the fan often doesn't cut on till nearly in the red which is quite normal .
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Derek
Driver
1 points

Apr 26, 2021 (1 week ago)
Replying to post by whittingehame:
On a lot of cars the fan often doesn't cut on till nearly in the red which is quite normal .
but indicator going to red and car signal overheating ?
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whittingehame
Legend
18,631 points

Apr 27, 2021 (1 week ago)
If it's not cutting in at all after all that has been replaced , it only leaves the fan motor or the wiring to check .
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Derek
Driver
1 points

Apr 27, 2021 (1 week ago)
Replying to post by whittingehame:
If it's not cutting in at all after all that has been replaced , it only leaves the fan motor or the wiring to check .
i checked fan motor and wiring. i suspicion to bsi. what do you think ?
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Derek
Driver
1 points

Apr 27, 2021 (1 week ago)
Replying to post by Derek:
i checked fan motor and wiring. i suspicion to bsi. what do you think ?
How can i check bsi output or what can i do ?
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whittingehame
Legend
18,631 points

Apr 27, 2021 (1 week ago)
If you are worried about it , tap into the wiring and fit a manual flick switch which you could then use if fan does not kick in automatically .
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Derek
Driver
1 points

Apr 27, 2021 (1 week ago)
allright thank you. i have a last question.
Where is location in my car ? i cant find this resistor location on internet
My car is : Citroen c2 1.4sx 2004
https://www.amazon.com/Resistor-9662872380-Radiator-Replacemet-Citroen/dp/B08BBZS6ZS
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Derek
Driver
1 points

Apr 27, 2021 (1 week ago) Edited on Apr 27, 2021 (1 week ago)
this is blower resistor .Does my problem have anything to do with this resistance? im searching radiator resistor location.
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whittingehame
Legend
18,631 points

Apr 27, 2021 (1 week ago)
The link you posted is for the blower motor resistor .
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whittingehame
Legend
18,631 points

Apr 27, 2021 (1 week ago)
Depends if its a mk1 or mk2 , later cars have a relay fastened to fan cowl ,early cars are controlled by engine Ecu/Bsi, Some models/ years had two temp sensors on gearbox side apparently
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Derek
Driver
1 points

Apr 27, 2021 (1 week ago)
Replying to post by whittingehame:
Depends if its a mk1 or mk2 , later cars have a relay fastened to fan cowl ,early cars are controlled by engine Ecu/Bsi, Some models/ years had two temp sensors on gearbox side apparently
you are awesome thank you.
https://productimages.hepsiburada.net/s/6/375/9742984183858.jpg
my car have a relay and i understand i dont have need a 2. relay or resistor for radiator fan. i will check bsi wiring and socket.

Do you have a suggestion for me this issue ? Why reaseon sometimes doenst work radiator fan ? my brain is blowing

Because i was change ;
• termostat,
• relay,
• temperature sensor
• checked fan
• checked radiator
• reset bsi
• hot water circulates all hose
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