Engine fan stop time

[graemebillo]

Hi all.

Just wondering thoughts on something.

Cupra 300 67plate

have noticed more recently that the engine cooling fan seems to be on more regularly after stopping whether it be long or short journeys.

Comes on as expected once the engine is turned off and goes off after a minute or two.

But it just seems to be more noticeable recently.

Does anyone have any thoughts on if it's normal or not?

Have checked coolant and all seems OK and it's had major service a few months ago.

Thanks in advance.

Sent from my XQ-AS72 using Tapatalk

 

[Cubbington]

Mine does the same, and I was a little paranoid about it at first, but I think it’s normal.

Hopefully someone more knowledgeable than me will provide a definitive answer though

Cheers,

Nick

 

[andy2max]

Mine does the same too, sometimes seems to do it, then other times not. I think it’s pretty normal I’m guessing it’s too cool components and get the heat out rather than letting it sit there in the engine bay after shutoff

 

[LeylandVCDS]

Is it a diesel? If so, it's probably the DPF trying to finish a regen. If the engine is stopped mid-regen, the fans will continue for a few minutes as things get very, very hot during the regen process. Not sure if the petrol GDF does the same, or even whether a 67 plate petrol car would even have one fitted, but if a diesel, it will certainly have a DPF there that will regen itself at least every 150-200 miles

 

[Cubbington]

Good thought, but both mine and the OP’s are Cupra 300!

 

[SRGTD]

Initially I did wonder if it was the GPF (gasoline particulate filter) going through an active regeneration but I think GPF’s were fitted from around Q3 2018 to coincide with the introduction of the revised testing procedures for emissions and fuel consumption - WLTP. With @graemebillo ’s car being a 67 plate, it was built prior to WLTP implementation.

i can vaguely remember the fan(s) on my first VW (a diesel mk4 Golf) continuing to run after everything had been turned off. That was back in 2002 which pre-dated VW fitting DPF’s; I may be wrong and I’m trying to remember back over 20 years ago but I think the cause was a faulty temperature sensor of some sort; sorted under warranty.

 

[Cubbington]

Initially I did wonder if it was the GPF (gasoline particulate filter) going through an active regeneration but I think GPF’s were fitted from around Q3 2018 to coincide with the introduction of the revised testing procedures for emissions and fuel consumption - WLTP. With @graemebillo ’s car being a 67 plate, it was built prior to WLTP implementation.

i can vaguely remember the fan(s) on my first VW (a diesel mk4 Golf) continuing to run after everything had been turned off. That was back in 2002 which pre-dated VW fitting DPF’s; I may be wrong and I’m trying to remember back over 20 years ago but I think the cause was a faulty temperature sensor of some sort; sorted under warranty.

Oh now that’s interesting - mine’s a 2020 GPF car, so it could be that, and ties in with @LeylandVCDS thought about DPF regen - sorry I missed that part of your comment this morning - I was a bit foggy!

Thanks guys!

Nick