Member Since: 23 Oct 2016
Location: Penrith
Posts: 143
Air con compressor failure?
Hello all,
I've had my D3 HSE 2005 for about a year. The AC has never worked but I want to get it sorted.
My car has been in a local indie today having an AC pipe behind the battery box replaced due to a leak. The system now holds pressure and has been re gassed to correct pressure.
Unfortunately, the ac is not getting cold. The car is going back to the garage on Thursday for further diagnosis but I would appreciate any input.
I've plugged in the IID and gathered any data I thought may be relevant. It looks like the compressor isn't running. The pressure of 587kpa never seems to change. I think the pressure switch is fine at 5v.
Thank you for your help.
11th Jul 2017 10:25 pm
gilesharrison
Member Since: 23 Oct 2016
Location: Penrith
Posts: 143
Bit of further detail.
When the engine is running, I can see the aux belt turning the ac pulley. Although the pulley turns, the spindle is not moving.
I understand the pulley does not have a clutch. Could the compressor be seized or the pulley failed?
11th Jul 2017 11:06 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13598
wonder if this helps to compare with
done a screenshot of mine a few weeks back when my ac was working
alas now i've got a leak somewhere , just got to find it
Last edited by gstuart on 11th Jul 2017 11:19 pm. Edited 2 times in total
11th Jul 2017 11:10 pm
gstuart
Member Since: 21 Oct 2016
Location: kent
Posts: 13598
gilesharrison wrote:
Bit of further detail.
When the engine is running, I can see the aux belt turning the ac pulley. Although the pulley turns, the spindle is not moving.
I understand the pulley does not have a clutch. Could the compressor be seized or the pulley failed?
with the engine running and ac at max , does either of ur low or high pressure pipes get cold, as per pic
11th Jul 2017 11:15 pm
gilesharrison
Member Since: 23 Oct 2016
Location: Penrith
Posts: 143
Thanks for the replies.
No, neither pipe gets cold when the engine is running.
It looks like the compressor isn't running, so I imagine it is either faulty, or there is an electrical issue causing it not to pump.
Seeing as the spindle isn't turning, I am guessing it may be seized and the pulley is not driving it. Anyone know if the pulley is has a rubber centre?
12th Jul 2017 8:44 am
gilesharrison
Member Since: 23 Oct 2016
Location: Penrith
Posts: 143
After converting the pressure from PSI to Kpa, it looks like your pressure is about three times higher than mine. I imagine that's just the compressor not running?
12th Jul 2017 2:40 pm
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
I think you will find compressor turns at all times as there is no clutch, so ask yourself if the spindle is not turning why hasnt the spindle worn its way through the pulley and chucked the belt off?
Put a dab of paint on the spindle and Im sure you will see it is in fact turning.
Search variable displacement air con compressor to see how they work as they turn all the time they need pag oil for lube so non working a/c should be fixed asap before the lack of pag lube screws something up.
Stitch in time saves nine.
12th Jul 2017 2:47 pm
gilesharrison
Member Since: 23 Oct 2016
Location: Penrith
Posts: 143
Diagnosis from garage: compressor knackered. New one to be fitted next week.
13th Jul 2017 8:02 pm
lynalldiscovery
Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274
Just as the summer ends
14th Jul 2017 6:28 am
decdecdec
Member Since: 17 Jul 2018
Location: Leszno
Posts: 11
Hi!
Did You have to either flush all pipes and radiator or change them for new ones?
I have the same problem with mine AC and mechanics says that if the compressor dies it looses some filings/shreds and if You will not get rid of them you will kill brand new compressor
13th Aug 2018 4:38 pm
Charliecloud
Member Since: 31 Jul 2014
Location: Tonbridge
Posts: 980
Suggestions as where to find a new ac compressor, as mine has gone kaput
13th Aug 2018 5:14 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20727
You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
