Make a donation

Author Topic: Aircon whirring sound  (Read 997 times)

Offline wacky

  • Always Involved
  • ****
  • Thank You
  • -Given: 55
  • -Receive: 4
  • Posts: 215
Aircon whirring sound
« on: August 04, 2021, 12:23:53 pm »
The aircon is working fine, but when I turn the engine off after the aircon has been on the motor makes a whirring sound for about ten seconds after the engine is turned off.

Any ideas what could be causing this please ?

Offline Octoparrot

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 8
  • -Receive: 99
  • Posts: 972
    • Email
Re: Aircon whirring sound
« Reply #1 on: August 04, 2021, 12:41:41 pm »
It's probably the electric fans.

Offline Clarkj93

  • Won't Shut up.
  • *****
  • Thank You
  • -Given: 7
  • -Receive: 33
  • Posts: 529
  • My Ride: https://www.mk5golfgti.co.uk/forum/index.php?PHPSESSID=ae5a9j0j7tte57o7266nnp90s8&/topic,131272.0.html
Re: Aircon whirring sound
« Reply #2 on: August 04, 2021, 12:55:05 pm »
As said its probably the fans to control the engine/bay temps, very normal behaviour on most cars in general. Cant remember on the mk5 but on a lot of cars you can see the fans kicking in with bonnet open when switching the engine off to satisfy your worries.

Offline pudding

  • Global Moderator
  • Just look at my post count
  • *
  • Thank You
  • -Given: 2
  • -Receive: 670
  • Posts: 8228
Re: Aircon whirring sound
« Reply #3 on: August 07, 2021, 01:00:16 am »
Fan run-on and the secondary electric water pump are all part of the normal shut down routines.....especially in the summer.


2007 ED30 | 2009 TDI 140 | 2016 BMW 330D

Offline wacky

  • Always Involved
  • ****
  • Thank You
  • -Given: 55
  • -Receive: 4
  • Posts: 215
Re: Aircon whirring sound
« Reply #4 on: August 08, 2021, 12:06:00 pm »
thanks, that makes sense then !