Hi, has anyone encountered any problem with the engine cooling fan running after the engine has been switched off.

I have an on-going intermittent fault when the cooling fan will run for as much as ten minutes, after leaving the car, as it appears that the fault is not related to either the external air temperature, or how the vehicle has been driven, ie fast motorway charge or slow country drive.

 

As the fault (fan running on) can occur after an early morning eight mile, with the external air temperature being anywhere from 8 degrease upwards (well it’s cold at 6:30am on a morning), through to the car being stood overnight this weekend, only for the fan to kick in four miles later, after a drive down a slow country drive.

 

An early indication that the cooling fan will kick in upon parking up, is that the “Stop/Start” system fails to operate.

Now the car has just returned from my local Skoda Dealership, who after a day in their workshop informed me that it’s the Air Conditioning Fan that I can hear, and and as such there wasn’t a fault with the car in their opinion!!!! But I have to say, as an ex Taxi Driver here in Leeds, I loath to use the Air Con, as I know it’s going to cost me money, so it stays switched off 95% of the time. And upon collecting the car this evening from the dealership, the “Stop/Start” system failed to operated, and as pulled back on their forecourt, the cooling fan roared into life for a couple of minutes.

 

So if anyone could suggest anything, I would be grateful as I’m a little unsure how to move this on.

Hi, has anyone encountered any problem with the engine cooling fan running after the engine has been switched off.

I have an on-going intermittent fault when the cooling fan will run for as much as ten minutes, after leaving the car, as it appears that the fault is not related to either the external air temperature, or how the vehicle has been driven, ie fast motorway charge or slow country drive.

 

As the fault (fan running on) can occur after an early morning eight mile, with the external air temperature being anywhere from 8 degrease upwards (well it’s cold at 6:30am on a morning), through to the car being stood overnight this weekend, only for the fan to kick in four miles later, after a drive down a slow country drive.

 

An early indication that the cooling fan will kick in upon parking up, is that the “Stop/Start” system fails to operate.

Now the car has just returned from my local Skoda Dealership, who after a day in their workshop informed me that it’s the Air Conditioning Fan that I can hear, and and as such there wasn’t a fault with the car in their opinion!!!! But I have to say, as an ex Taxi Driver here in Leeds, I loath to use the Air Con, as I know it’s going to cost me money, so it stays switched off 95% of the time. And upon collecting the car this evening from the dealership, the “Stop/Start” system failed to operated, and as pulled back on their forecourt, the cooling fan roared into life for a couple of minutes.

 

So if anyone could suggest anything, I would be grateful as I’m a little unsure how to move this on.

If you do short journeys the engine needs to regenerate. My 2.00 TDi will do it when I do a lot of town driving It is normal not to worry about ity

If you do short journeys the engine needs to regenerate. My 2.00 TDi will do it when I do a lot of town driving It is normal not to worry about ity

Yep, it is in the owners manual.

My yeti does exactly that, but very infrequently. Normally when parking after a short 10 mile drive through town.

Usually accompanied by hot air blasting from under the front of the car.

I've never thought of it as a fault, but just something to do with the DPF doing its thing.

I could be wrong of course.

Mines done it about 3 or 4 times so far but I tend to do longer journeys of at least 35 miles or more so the dpf in mine prob gets a good blow out with fewer regens needed, it did do it's regen thing the other day though after getting home, sounded like a helicopter was coming over!

It is the DPF regenerating and perfectly normal, there is nothing wrong with your car. During the regeneration cycle the exhaust is super heated to burn off the soot in the diesel particulate filter and the start stop will not operate, you will also notice that the car drives a little differently with more noise and a higher idle speed. if you turn the engine off during a regeneration or immediately after, the cooling fans will come on as the exhaust system will be extremely hot (a potential safety hazard). You will also most likely notice a burning smell from the regeneration. 

 

I am very surprised that your dealer hasn't pointed this out to you -really they should know better and have given you the correct advice as to running a car with a Diesel Particulate Filter.

 

I suggest you have a good read of the manual and possibly a word with your dealership!

Theres a guide on suks website for both pd and cr regens. As above if the fans come on and your idle was at circa 1000 rpm when you switched the engine off youve interupted the regen and its cooling the dpf down. If the tickovers gone back to normal and they still come on it'll be because its finished the regen but the dpf is still hot so its cooling it down.