Air Con Problem

the hampster · 4th June 2010, 16:55

Hi

Can any one offer me advise please. My MG ZT Deisel Auto has had no problem "blowing cold" since new. It is a 2004 54 plate.

Today...the hottest day of the year so far......its had decided to stop working. Everything seems normal however. When you switch the air con on ,the revs drop for a second as it used to and you can hear the compressor going. I can't smell that special smell associated with it when you swich it on and off however. It was last working a couple of weeks ago. It has been said that it may need regassing but I thought this would be a gradual process in that it would not be as effective as time went on and not an instant thing. Could it be electrical ,like a blown fuse or something.

Yours...boiling over

The Hampster

Lates · 4th June 2010, 16:59

Thread needs moving as it is in the V8 section.

EDIT:
As requested, thread moved to Technical Help Forum for greater exposure

Back to it, is the cooling fan operation ok and what temperature are the air con pipes under the bonnet.

the hampster · 4th June 2010, 17:11

The cooling fan is fine.....the pipes are NOT cold under the bonnet they used to be cold and covered in condensation when air was on!

Tim · 5th June 2010, 15:39

Sounds like a re-gas job, when did you last have it service?

matt_tdv6 · 5th June 2010, 21:56

Whats the best way to check the fan? My aircon only blows cold when moving and when stood it blows warmer

I was going to change the condensor but havnt got round to it yet

rrobson · 5th June 2010, 21:59

start engine and press the de-mist button. fan should come onto low speed.

Lates · 5th June 2010, 22:07

Quote:

Originally Posted by matt_tdv6

Whats the best way to check the fan? My aircon only blows cold when moving and when stood it blows warmer

I was going to change the condensor but havnt got round to it yet

mini hijack...... another ZRX in the fold wooo hooo

matt_tdv6 · 5th June 2010, 22:36

Oh yes,Another ZRX lover

Lates · 5th June 2010, 22:39

vvc or derv

matt_tdv6 · 5th June 2010, 22:51

Its a dirty diesel,was going to retrofit aircon to the ZRX when i get the ZT working properly

4th June 2010, 16:55	#1
the hampster Newbie MG ZT Join Date: Feb 2010 Location: Sutton South London Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts	Air Con Problem Hi Can any one offer me advise please. My MG ZT Deisel Auto has had no problem "blowing cold" since new. It is a 2004 54 plate. Today...the hottest day of the year so far......its had decided to stop working. Everything seems normal however. When you switch the air con on ,the revs drop for a second as it used to and you can hear the compressor going. I can't smell that special smell associated with it when you swich it on and off however. It was last working a couple of weeks ago. It has been said that it may need regassing but I thought this would be a gradual process in that it would not be as effective as time went on and not an instant thing. Could it be electrical ,like a blown fuse or something. Yours...boiling over The Hampster

4th June 2010, 16:59	#2
Lates This is my second home Jaguar XE Join Date: Nov 2006 Location: Coventry Posts: 4,321 Thanks: 56 Thanked 59 Times in 55 Posts	Thread needs moving as it is in the V8 section. EDIT: As requested, thread moved to Technical Help Forum for greater exposure Back to it, is the cooling fan operation ok and what temperature are the air con pipes under the bonnet. Last edited by Reebs; 8th June 2010 at 00:36.. Reason: Thread Moved To Correct Forum

5th June 2010, 15:39	#4
Tim Feel the size of my Quads MG ZT 440SE, MG HS PHEV & MG3 Join Date: Nov 2006 Location: Addlestone Posts: 1,735 Thanks: 0 Thanked 128 Times in 85 Posts	Sounds like a re-gas job, when did you last have it service? __________________ Member 23 or 63 depending on what you look at. https://www.two-sixties.co.uk/mgoc26...0rum/forum.php http://two-sixties-blog.com/ http://www.youtube.com/user/TheTwoSi.../1/1wPt2rhd_Ps Last edited by Tim; 5th June 2010 at 15:45..

4th June 2010, 17:11	#3
the hampster Newbie MG ZT Join Date: Feb 2010 Location: Sutton South London Posts: 6 Thanks: 0 Thanked 0 Times in 0 Posts	The cooling fan is fine.....the pipes are NOT cold under the bonnet they used to be cold and covered in condensation when air was on!

5th June 2010, 21:56	#5
matt_tdv6 Avid contributor 04 ZT CDTI & 04 MG ZR Express Join Date: Mar 2010 Location: Scunthorpe Posts: 244 Thanks: 0 Thanked 0 Times in 0 Posts	Whats the best way to check the fan? My aircon only blows cold when moving and when stood it blows warmer I was going to change the condensor but havnt got round to it yet

5th June 2010, 21:59	#6
rrobson I really should get out more....... 75 tourer cdti, MG ZS 180, nissan terrano & 1.8t rover 25 Join Date: Feb 2010 Location: Pontefract Posts: 2,647 Thanks: 17 Thanked 295 Times in 218 Posts	start engine and press the de-mist button. fan should come onto low speed.

5th June 2010, 22:36	#8
matt_tdv6 Avid contributor 04 ZT CDTI & 04 MG ZR Express Join Date: Mar 2010 Location: Scunthorpe Posts: 244 Thanks: 0 Thanked 0 Times in 0 Posts	Oh yes,Another ZRX lover

5th June 2010, 22:39	#9
Lates This is my second home Jaguar XE Join Date: Nov 2006 Location: Coventry Posts: 4,321 Thanks: 56 Thanked 59 Times in 55 Posts	vvc or derv

5th June 2010, 22:51	#10
matt_tdv6 Avid contributor 04 ZT CDTI & 04 MG ZR Express Join Date: Mar 2010 Location: Scunthorpe Posts: 244 Thanks: 0 Thanked 0 Times in 0 Posts	Its a dirty diesel,was going to retrofit aircon to the ZRX when i get the ZT working properly