Fan Noise and heat

optimistique1 · Post by **optimistique1** » Mon Apr 17, 2023 7:25 pm

Hi all, I have noticed that my engine fan seems to be coming on very early when driving and also very frequently a lot more than I have noticed with any other vehicles.
I took the car in to be looked at and everything came out ok but it's still happening and also the air gets warm in the cabin quite quickly too....
Anyone any ideas?

B21 · Post by **B21** » Mon Apr 17, 2023 7:49 pm

optimistique1 wrote: ↑Mon Apr 17, 2023 7:25 pm Hi all, I have noticed that my engine fan seems to be coming on very early when driving and also very frequently a lot more than I have noticed with any other vehicles.
I took the car in to be looked at and everything came out ok but it's still happening and also the air gets warm in the cabin quite quickly too....
Anyone any ideas?

May help for those of lacking in clairvoyant skills to let us know what model of E89?

Pondrew · Post by **Pondrew** » Mon Apr 17, 2023 7:54 pm

Check you haven't got the a/c on permanently. There is only one electric fan which doubles as a radiator cooling fan and a/c cooling fan.
The E89 cycles the fan for the a/c via a high pressure switch, it doesn't run permanently with the a/c on like on some cars.

optimistique1 · Post by **optimistique1** » Mon Apr 17, 2023 8:19 pm

Sorry yes it's the E89 model....

I only hve the normal vents working with the fans blowing definitely not the AC or anything like that.....

B21 · Post by **B21** » Mon Apr 17, 2023 9:22 pm

optimistique1 wrote: ↑Mon Apr 17, 2023 8:19 pm Sorry yes it's the E89 model....

I only hve the normal vents working with the fans blowing definitely not the AC or anything like that.....

Yes which model of an E89? 23i 30i 18i 20i 28i 30i 35i 35is?

Chippie · Post by **Chippie** » Mon Apr 17, 2023 9:24 pm

optimistique1 wrote: ↑Mon Apr 17, 2023 8:19 pm Sorry yes it's the E89 model....

I only hve the normal vents working with the fans blowing definitely not the AC or anything like that.....

e89 -?
18, 20, 23, 28, 30, 35?
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016?

Chippie · Post by **Chippie** » Mon Apr 17, 2023 9:25 pm

B21 wrote: ↑Mon Apr 17, 2023 9:22 pm
optimistique1 wrote: ↑Mon Apr 17, 2023 8:19 pm Sorry yes it's the E89 model....

I only hve the normal vents working with the fans blowing definitely not the AC or anything like that.....
Yes which model of an E89? 23i 30i 18i 20i 28i 30i 35i 35is?

Snap
You beat me to it

optimistique1 · Post by **optimistique1** » Mon Apr 17, 2023 9:45 pm

Chippie wrote: ↑Mon Apr 17, 2023 9:24 pm
optimistique1 wrote: ↑Mon Apr 17, 2023 8:19 pm Sorry yes it's the E89 model....

I only hve the normal vents working with the fans blowing definitely not the AC or anything like that.....
e89 -?
18, 20, 23, 28, 30, 35?
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016?

Sorry not very good am I?
2012 plate - 20i model....
Thanks for your patience.....

B21 · Post by **B21** » Mon Apr 17, 2023 10:07 pm

optimistique1 wrote: ↑Mon Apr 17, 2023 9:45 pm
Chippie wrote: ↑Mon Apr 17, 2023 9:24 pm
optimistique1 wrote: ↑Mon Apr 17, 2023 8:19 pm Sorry yes it's the E89 model....

I only hve the normal vents working with the fans blowing definitely not the AC or anything like that.....
e89 -?
18, 20, 23, 28, 30, 35?
2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016?
Sorry not very good am I?
2012 plate - 20i model....
Thanks for your patience.....

On the N20 engine versions (yours)..there is a relatively common fault with the engine coolant sensor failing and causing such a paddy..you need a decent Indy to check that one out..

Without a decent fault code reader you are grasping at straws I’m most of these cases..

optimistique1 · Post by **optimistique1** » Mon Apr 17, 2023 10:11 pm

Thank you that's good to know is it an expensive fix?
I am taking the car in soon to get the coolant flushed out as I topped it up the other day and I think I have mixed two different coolant types.
So, I decided to get it flushed out and get the recommended BMW coolant put in, just hope my error of mixing coolants doesn't cause an issue.
Whilst the car is in I can get them to check the sensor.....

B21 · Post by **B21** » Mon Apr 17, 2023 10:24 pm

optimistique1 wrote: ↑Mon Apr 17, 2023 10:11 pm Thank you that's good to know is it an expensive fix?
I am taking the car in soon to get the coolant flushed out as I topped it up the other day and I think I have mixed two different coolant types.
So, I decided to get it flushed out and get the recommended BMW coolant put in, just hope my error of mixing coolants doesn't cause an issue.
Whilst the car is in I can get them to check the sensor.....

I think the sensor is about £80..it looks like an oil pressure sensor..

optimistique1 · Post by **optimistique1** » Mon Apr 17, 2023 10:36 pm

Many thanks

optimistique1 · Post by **optimistique1** » Fri May 05, 2023 7:25 pm

It turns out it was some kind of a senson housing thing that was causing the issue, hopefully all fixed now.....

traceydix · Post by **traceydix** » Wed Jun 21, 2023 4:41 pm

Hi,

I see your car had the same issues I am experience with my Z4 E 89 2.0 2013 .
I’ve had water pump done and thermostat still having problems .
What was the part you had done on yours please ?
So I can let my garage know .

My fan keeps going mad , coolant getting hot.
Went to BMW who said the thermostat and pump needed replacing . Had it done at a different garage
BMW are saying I would have to pay again for them to look at it - which I’m not happy to pay £220 again for them to look again.
Have a code which now says

optimistique1 · Post by **optimistique1** » Thu Aug 17, 2023 11:21 pm

Sorry for the delay did you get yours fixed?

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