C3 - 2005 - SX - Radiator Fan Problem
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C3 - 2005 - SX - Radiator Fan Problem
Hello there. First of all, I apologize for my bad English. I have a radiator fan problem in my vehicle. The fan does not operate when it reaches 90 degrees. When it is 100 degrees, all the overheating lights on the console are lit and a warning sound is heard. That's not always the case. Sometimes it works. When it works, it works at fast speed. I tested the fan relay in the photo, it works. But the fan usually does not work. I can not take the test because it is too expensive new radiator fan in Turkey. Is there a method I can test?
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OnlineGiveMeABreak
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Re: C3 - 2005 - SX - Radiator Fan Problem
Post your VIN up so we know exactly what you have.
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Marc
Marc
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Re: C3 - 2005 - SX - Radiator Fan Problem
What exactly is VIN?
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OnlineGiveMeABreak
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Re: C3 - 2005 - SX - Radiator Fan Problem
Your vehicle identification number.
You can find it on the outside lower corner of the windscreen in the little window cut out. It will begin VF7**************[VIN obfuscated, can be read by forum staff] and is 17 alphanumeric in length.
You can find it on the outside lower corner of the windscreen in the little window cut out. It will begin VF7**************[VIN obfuscated, can be read by forum staff] and is 17 alphanumeric in length.
Please Don't PM Me For Technical Help
Marc
Marc
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OnlineGiveMeABreak
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- x 1
Re: C3 - 2005 - SX - Radiator Fan Problem
Here.
VF7**************[VIN obfuscated, can be read by forum staff]
VF7**************[VIN obfuscated, can be read by forum staff]
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Re: C3 - 2005 - SX - Radiator Fan Problem
Marc will need the full VIN including numbers.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
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OnlineGiveMeABreak
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C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
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Re: C3 - 2005 - SX - Radiator Fan Problem
Just type the full code here - it will be masked automatically from public view.
Please Don't PM Me For Technical Help
Marc
Marc
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OnlineGiveMeABreak
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C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5725
Re: C3 - 2005 - SX - Radiator Fan Problem
Ok, so I've deleted all the unnecessary info and replaced the image with the complete VIN from the last 8 digits you supplied.
So you have the C3 5 DOOR SALOON 1.4i 75 (TU3JP) 4-SPEED AUTOMATIC GEARBOX.
I'll take a look at the fan system shortly.
So you have the C3 5 DOOR SALOON 1.4i 75 (TU3JP) 4-SPEED AUTOMATIC GEARBOX.
I'll take a look at the fan system shortly.
Please Don't PM Me For Technical Help
Marc
Marc
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Re: C3 - 2005 - SX - Radiator Fan Problem
thank you so much
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OnlineGiveMeABreak
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- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5725
Re: C3 - 2005 - SX - Radiator Fan Problem
Ok, so here is the information regarding the cooling system fitted to the C3 MK I with AL4 Automatic box:
So the fan on this vehicle is the 300 Watt version as you have Air Conditioning. It is also a variable speed fan (chopper). On slow speed, the fan will start when the engine temperature reaches 96 ° C. The speed will increase as needed, but will reach maximum speed at 105 ° C. So the fan won't start at 90° C as you said - that is normal. So the fan should start working on slow speed if you have the air conditioning switched on.
Do a test - when the engine has been off and is cool, start the car and switch the A/C OFF - the fan should not be working. Then switch the A/C on - it should start on slow speed. If that works, so far so good. You have already said it works on fast speed - so it is unlikely to be the relay.
I would suspect the Thermostatic Water Temperature Sensor is bad, so try replacing that.
Item 2 is the electric Relay for the fan. Citroen Part number: 6555VL (45 Amp, Grey)
Item 5 Is the Water Temperature Sensor
Part Number: 9636777180
Cooling System Circuit Key:
(1) Expansion Chamber.
(2) Coolant Pump.
( 3) Heater Matrix Bleed Screw.
(4) Heater Matrix Unit.
(5) Coolant Outlet Housing (BSE).
(6) Coolant Outlet Housing Bleed Screw.
(7) Thermostat.
(8) Cooling Radiator.
(9) Heat Exchanger (automatic gearbox).
Engine Cooling System
Fan
So the fan on this vehicle is the 300 Watt version as you have Air Conditioning. It is also a variable speed fan (chopper). On slow speed, the fan will start when the engine temperature reaches 96 ° C. The speed will increase as needed, but will reach maximum speed at 105 ° C. So the fan won't start at 90° C as you said - that is normal. So the fan should start working on slow speed if you have the air conditioning switched on.
Do a test - when the engine has been off and is cool, start the car and switch the A/C OFF - the fan should not be working. Then switch the A/C on - it should start on slow speed. If that works, so far so good. You have already said it works on fast speed - so it is unlikely to be the relay.
I would suspect the Thermostatic Water Temperature Sensor is bad, so try replacing that.
Item 2 is the electric Relay for the fan. Citroen Part number: 6555VL (45 Amp, Grey)
Item 5 Is the Water Temperature Sensor
Part Number: 9636777180
Cooling System Circuit Key:
(1) Expansion Chamber.
(2) Coolant Pump.
( 3) Heater Matrix Bleed Screw.
(4) Heater Matrix Unit.
(5) Coolant Outlet Housing (BSE).
(6) Coolant Outlet Housing Bleed Screw.
(7) Thermostat.
(8) Cooling Radiator.
(9) Heat Exchanger (automatic gearbox).
Sensor | Temperature sensor |
Information | Engine coolant temperature: Computer |
Connector colour | Blue |
Ring colour | Yellow |
Tightening torque | 1,7 ± 0,2 daNm |
Warning temperature | 118 °C |
Total capacity of circuit | 7 litres |
Calibration of the thermostat: | - |
Start of opening of the thermostatic regulator | 89 °C |
Complete opening | 101 °C |
Electric Cooling Fan Unit | 100 Watts (vehicle without air conditioning) |
Electric Cooling Fan Unit | 300 Watts (vehicle with air conditioning) |
Please Don't PM Me For Technical Help
Marc
Marc
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- x 1
Re: C3 - 2005 - SX - Radiator Fan Problem
I tested the fan relay and it works. Engine water reaches 100 degrees. I checked it with the OBD. The relay is activated when the fan should run, but the fan does not start. I put the relay in and out a couple of times. He's working. This doesn't always work.
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Re: C3 - 2005 - SX - Radiator Fan Problem
I will replace and test the Thermostatic Water Temperature Sensor as soon as possible. Thank you very much for your help.GiveMeABreak wrote: ↑07 Sep 2019, 17:05 Ok, so here is the information regarding the cooling system fitted to the C3 MK I with AL4 Automatic box:
So the fan on this vehicle is the 300 Watt version as you have Air Conditioning. It is also a variable speed fan (chopper). On slow speed, the fan will start when the engine temperature reaches 96 ° C. The speed will increase as needed, but will reach maximum speed at 105 ° C. So the fan won't start at 90° C as you said - that is normal. So the fan should start working on slow speed if you have the air conditioning switched on.
Do a test - when the engine has been off and is cool, start the car and switch the A/C OFF - the fan should not be working. Then switch the A/C on - it should start on slow speed. If that works, so far so good. You have already said it works on fast speed - so it is unlikely to be the relay.
I would suspect the Thermostatic Water Temperature Sensor is bad, so try replacing that.
Item 2 is the electric Relay for the fan. Citroen Part number: 6555VL (45 Amp, Grey)
Item 5 Is the Water Temperature Sensor
Part Number: 9636777180
Cooling System Circuit
Key:
(1) Expansion Chamber.
(2) Coolant Pump.
( 3) Heater Matrix Bleed Screw.
(4) Heater Matrix Unit.
(5) Coolant Outlet Housing (BSE).
(6) Coolant Outlet Housing Bleed Screw.
(7) Thermostat.
(8) Cooling Radiator.
(9) Heat Exchanger (automatic gearbox).
Engine Cooling System
Sensor Temperature sensor Information Engine coolant temperature: Computer Connector colour Blue Ring colour Yellow Tightening torque 1,7 ± 0,2 daNm Warning temperature 118 °C
Fan
Total capacity of circuit 7 litres Calibration of the thermostat: - Start of opening of the thermostatic regulator 89 °C Complete opening 101 °C
Electric Cooling Fan Unit 100 Watts (vehicle without air conditioning) Electric Cooling Fan Unit 300 Watts (vehicle with air conditioning)
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OnlineGiveMeABreak
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- Posts: 37343
- Joined: 15 Sep 2015, 19:38
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- My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow - x 5725
Re: C3 - 2005 - SX - Radiator Fan Problem
It's going to be a matter of eliminating and testing - but check the wiring connections to the fan motor itself (but warning - be aware that the fan can suddenly start with the engine not running - in order to cool the engine - so watch your fingers!). Sometimes there can be a break in a wire that corrodes over time giving an intermittent signal.
Please Don't PM Me For Technical Help
Marc
Marc
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- Posts: 17
- Joined: 07 Sep 2019, 07:43
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- My Cars: Citroen C3 - 2005 - SX - Automatic shift
- x 1
Re: C3 - 2005 - SX - Radiator Fan Problem
I will be very careful during the tests. Thank you for the warnings.