Hi all new to the forum!

Recently Bought a 60 plate fiesta zetec s tdci (95bhp) and the cooling fan has a mind of its own..... Every few days! After a short journey it some times comes on for a min or so.....The engine isn't over heating and the air con isn't being used.

After looking on Google it's pointing to the cooling fan relay or the dpf regenerating????

Has anybody else had this problem?

I had it remapped a few weeks ago due to it being underpowered and poor fuel mpg, not sure if this could cause the dpf to regenerate more often with the extra power?

Thanks in advance

hat could be the dpf regenerating. The fans staying on after is symptom of that.

I've heard that some remaps could make it smoke more which could cause it needing to regen more

It doesn't stay on long, a minute or so after the engine e is switched off. It doesn't smoke at all but has made a massive difference in power and mpg.

It could be smoking more, it would just be getting caught by the dpf, then making it regen more

My fiesta does this with the fan, but mine doesn't have a DPF, sometimes after a short journey the fan will stay on for a few mins after switching off... Dunno why it does it, just does ?

Mine has a dpf and does the same after a hard thrash, look at the instant consumption before turning the car off if its above 0.2g/hr it means a regen has just taken place

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Sounds like it's just something they do then? Didn't notice it before having it remapped but only had it a couple of weeks then.

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My fan always goes on & off after short periods of time too

Doesn't sound like anything to be worried about then! Was expecting either bad news or a large repair bill

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Well lets just think of it as our cars getting their breath back after a 'gentle' drive lol.