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Old 12-01-14, 09:08 PM   #1
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Hello, anyone had a similar problem, I have a 08 1.6 307sw estate, the cooling fan runs on after the engine is switched of, with the result I have to disconnect the battery, anew temp sensor was installed a number of weeks ago but the problem is back. any help/advice is appreciated, regards Kenny.
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Old 12-01-14, 09:41 PM   #2
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is it a diesel or a petrol
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Old 13-01-14, 07:43 AM   #3
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If its a diesel with a 110bhp engine then its regenerating.
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Old 13-01-14, 08:15 AM   #4
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Hello, its diesel.
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Old 13-01-14, 09:28 AM   #5
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My understanding of regenerating is, that the Diesel particulate filter performs that function while the engine is running, but if I am wrong where does the cooling fan come into the equation and why do they continue running after the ignition is switched off? As a matter of interest there are no warnings on the dash.
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Old 13-01-14, 12:46 PM   #6
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its carrying on as the regeneration isnt complete when you turn off the car

the cooling fan keeps the temp down when its doing its thing
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Old 13-01-14, 12:57 PM   #7
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Quote:
Originally Posted by kennyd View Post
My understanding of regenerating is, that the Diesel particulate filter performs that function while the engine is running
It regenerates whenever it needs it. In a perfect world the car should be on the motorway or fast highways and regenerate in 20 minutes there, with lots of cold air going into the engine as you drive.

But if you're not on a fast road very often and do lots of built up driving, or fill up your fuel tank little and often, expect problems ahead.
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Old 13-01-14, 03:20 PM   #8
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Quote:
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It regenerates whenever it needs it. In a perfect world the car should be on the motorway or fast highways and regenerate in 20 minutes there, with lots of cold air going into the engine as you drive.

But if you're not on a fast road very often and do lots of built up driving, or fill up your fuel tank little and often, expect problems ahead.
Sorry, but it is the fan module that is at fault, just had it diagnosed.
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Old 14-01-14, 08:06 AM   #9
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Fair enough, but if you bothered to give us more details on your car or posted an introduction then we wouldn't have to guess.

On my 90bhp 307 the fan would stay on, that was dirt and grime on the contacts of the fan relay under the bonnet slam panel.
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Old 14-01-14, 10:55 AM   #10
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Thanks for taking the time to reply, regards Kenny.
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