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-   S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General (https://www.volvoforums.org.uk/forumdisplay.php?f=19)
-   -   S60 Air Con: Air con has life of its own ! (https://www.volvoforums.org.uk/showthread.php?t=38909)

afcbian Jun 12th, 2007 21:33

Air con has life of its own !
 
The air con on my S60 T5 SE 2002 sometimes turns itself on after being parked for a while. Is this normal ?

S60-MBS Jun 12th, 2007 21:38

lol did you search the forum at all ..been covered so m,any times ..its just the system drying itself out ..

afcbian Jun 12th, 2007 21:40

no mate, just posted a quicky. Many thanks for the reply though.

S60-MBS Jun 12th, 2007 21:45

Quote:

Originally Posted by afcbian (Post 250615)
no mate, just posted a quicky. Many thanks for the reply though.

to be honest had me in panic too first time i noticed it....you will even see water under car sometimes thats normal too..
regards
Mo

Viper_7 Jun 12th, 2007 21:52

I feel left out!! In two and a bit years I've never caught it doing this!

aye it can come on after about 10 mins when you've turned off, and run for 30 mins easily to dry everything out and stop mildew and bacteria build up. It's more likely to happen like today when it's been hot and humid.
Don't worry it, the logic is clever enough not to run your battery flat.

Same goes for the radio and any other electrical item there, it will turn everything off if the charge gets too low.

vipes

afcbian Jun 12th, 2007 21:57

Still getting used to some of the clever Volvo stuff. Left the keys in the ignition once while I waxed it and ran the battery flat in four hours. (geartronic issue I believe)

Viper_7 Jun 12th, 2007 22:02

Quote:

Originally Posted by afcbian (Post 250622)
Still getting used to some of the clever Volvo stuff. Left the keys in the ignition once while I waxed it and ran the battery flat in four hours. (geartronic issue I believe)

really? would be interested in knowing more about that? blasted thing is suposed to protect it'self to prevent the battery going flat!

afcbian Jun 12th, 2007 22:12

Apparantly the independant chap who looks after the car for me says he has had this quite a few times. Apparantly they quite often leave the keys in when the cars are on the ramp as they need the cars to be in neutral so they can move the cars and roll the wheels and after working on them for 3-4 hours the batteries are as flat as a pancake. Must admit it surprised me, having sais that I have had no other problems with the battery.

DownundeR Jun 13th, 2007 01:52

Quote:

Originally Posted by afcbian (Post 250629)
Apparantly the independant chap who looks after the car for me says he has had this quite a few times. Apparantly they quite often leave the keys in when the cars are on the ramp as they need the cars to be in neutral so they can move the cars and roll the wheels and after working on them for 3-4 hours the batteries are as flat as a pancake. Must admit it surprised me, having sais that I have had no other problems with the battery.

That’s interesting!
I understand that with the auto trannies to have the car in neutral requires the ignition to be ON (shiftlock disabled & depress brake pedal).
That means everything:
Interior electrics; courtesy lights, instruments, radio (& amp if fitted) and the vast array of sensors dotted around the car - along with the engine & body electronics; daytime running lights (if activated) fuel pump, transmission control module, ECU, front & rear electronic modules etc.

It would be interesting to see what the power consumption is for the car with everything on and no engine running…

Regarding the A/C fan being on – this is can be car dependant.
Officially known as the “after blow function” some cars had this activated/de-activated through the Volvo VADIS/VIDA system. Supposedly, the after blow function is ‘smart’ enough to detect if the battery is running low and switch itself off when the ignition is on the OFF position.
But of course if the car’s ignition is switched to ON – then there is a potential to drain the battery. This has happened to me once or twice...

Alpha206 Jun 16th, 2007 12:22

As this gets asked a lot I'm posting it as a sticky...

Quote:

Officially known as the “after blow function” some cars had this activated/de-activated through the Volvo VADIS/VIDA system.
Interesting comment, that. I have never heard the afterblow on my MY2005, but it regularly kicked in on my old MY2002. I asked the question on last year's service as the aircon was starting to smell (they cleaned it FOC for me) and they insisted there were no faults and that "it could start up any time" - I'm due the next service in September so I think I'll ask them to check if it's deactivated....

JohnDale Jan 1st, 2008 12:33

Once auto is in Neutral, turn the key off again. Only time key needs to be on is if you need to turn steering.

Dasrah Jul 27th, 2009 01:30

Even with the explination its still weird. And mine did kill the battery evntually. Stopped holding a charge.

Anyway, I guess no worries then. Thanx

yuckuJackD Jul 7th, 2010 14:45

Quote:

Originally Posted by VADIS (Volvo Aftersales Diagnostic Information System)
A timer located in the central electronic module (CEM) controls the run-on time. 50 minutes after the engine has been switched off and the ignition has been turned to position 0 or I the central electronic module (CEM) supplies power to the climate control module (CCM) and the blower fan is activated at full speed for 7 minutes. This run-on dries the evaporator and prevents bad odors.
This function is programmed at the factory, but can be deactivated in the event of customer complaints via programming of customer parameters. Programming is carried out via VIDA.
The function is only available to cars of structure week 199850 and later.

That's what I red in VADIS about drying the system, but i found nothing about "thinking" not to run your battery flat.

BrockHouse S60 Jul 28th, 2010 20:22

Air Con Compressornoise
 
Volvo S60 Dec 2003 2319cc T5 65K: Having recently replaced a timing belt, belt tensioner, belt roller and installing at the same time a new water pump. I checked all the auxiliary rollers/free wheels and I discovered that the noise I get when the engine is at idle is coming from a dry but apparently undamaged air conditioning compressor electro-magnetic clutch free wheel roller bearing.



Question: Is in situ greasing of this bearing possible and if it is will this cause any damage to the air conditioning compressor electro-magnetic clutch.



Bob Trethewey

y2blade Jun 15th, 2011 08:30

Quote:

Originally Posted by S60-MBS (Post 250613)
lol did you search the forum at all ..been covered so m,any times ..its just the system drying itself out ..



I just found this thread after doing a search....

the search was prompted by this that happened last night

...I parked the car in the garage last night, locked the car as normal then left the back door to the garage open while I was doing some gardening...walked past the garage about 45mins/1hr later to notice a wuuuuuuring sound...the cabin blower/fan was running, I unlocked the car and got in, as I put the key to the ignition it stopped and went silent.....I thought the car was possessed

lol

:D

I'd never noticed it doing that before...so put the optimate on it overnight so it would show up if the fan came on again...obviously tonight there was no voltage drop report on the optimate.


we'd be screwed without these forums wouldn't we :thumbs_up:

LJD Apr 16th, 2012 15:52

Just happened to me !! And only a hour ago i had had "Kwikfit" do a AC service .

Good to know its all fine

£49.00 for the service. Includes dye leak test and full change of Gas . System is far colder , to the point of "freezing" !

Its one thing i always use them for .

nomad biker Jun 9th, 2013 21:11

v70 t5 se
 
It does it on my v70 t5 se 2001 model, i thought the thing was possesed too!

Orca2 Jul 16th, 2013 23:17

My V70 does this too I thought there was something wrong with the AC switches
It did it once at my warehouse and ultimately switched itself off when the battery voltage sensor showed low battery, This forum is great for this type of info
Thanks to all.

sneakypenguin Jul 28th, 2013 00:50

I wish mine did this, gets a bit pongy if I haven't used it for a few days!

mick

barrybritcher Apr 20th, 2019 16:34

any ideas on fixing leaking AC which passes the AC UV leak test?!

Had it regassed with the official amount required(700g I think) worked lovely for few months then , no AC again.

stuart bowes Jan 12th, 2021 22:35

Quote:

Originally Posted by JohnDale (Post 342622)
Once auto is in Neutral, turn the key off again

dont even need that, just pop up the cover and tweak the little white latch underneath

that's how i've been doing it to get lever out of the way when working on the stereo.
mainly because I tended to sit in the passenger side for more space, all tools around me, get comfy then look at the gear selector and go 'god dammit' so I found a way that wasnt getting out of the car and walking around to the other side lol

admittedly that involves popping off the pen holder thing first but that only takes a quick flick of a screwdriver or a plastic spatula thing depending how precious you are about your trim

-------

retuning to topic... it was an eyebrow raising time for me as well when it first happened. that brief oh my god how do i stop it! panic. before you calm down and check online


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