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22nd August 2019, 21:24 | #11 |
Gets stuck in
MG ZT 2.0 cdti Join Date: Aug 2019
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Where did you have it re-gased?
Some places use " re-cycled" gas as when they do a re-gas the system gets evacuated first, pressure tested then if no serious leaks detected, re-gassed. Most modern systems are automated. Connect the car up and leave to their "thing" for 30 - 45 mins. So, in short. Any "old" gas in the system gets removed first before being recharged. Your "new" gas is actually partially re-used gas which will be contaminated with atmospheric air, water, and oil etc. So your air-con system will never be up to its original capacity even if its fully functional. Hard to find a place these days that use " new " gas in a system.
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22nd August 2019, 21:55 | #12 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Quote:
Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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23rd August 2019, 00:23 | #13 | |
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Quote:
Note a diesel with the temperature sensor disconnected the cooling fan will not operate when the ignition is switched on as you would expect. Russ
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Replacement Key Service http://https://the75andztclub.co.uk/...d.php?t=244732 Full T4 Testbook diagnostics available. Diesel ECU repair and replacement. Options enabled or disabled as required. Diesel X-Power 135 and 160bhp, Rover 1.8T 150 to 160 MG 160 V6 to 177 upgrades available P.M. for details. Last edited by BigRuss; 23rd August 2019 at 08:08.. |
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23rd August 2019, 06:43 | #14 |
I really should get out more.......
MG ZT-T 260 Join Date: Feb 2016
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This has been common practice for a while, have you seen the price of R134A now? Not that long ago a 13kg bottle was about £100 now it costs about £300 and we are told how bad it is for the environment? If an engineer can use ''old'' gas of course he will. I have been told it is going to get more expensive as the new gas is being phased in.
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23rd August 2019, 07:08 | #15 | |
Posted a thing or two
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I also think you should run the system at LO as had been said and with recirculation on to get to the lowest temperature. As had been said measure at the face level vents. |
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23rd August 2019, 08:04 | #16 | |
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Quote:
Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. |
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23rd August 2019, 08:15 | #17 | ||
Doesn't do things by halves
Rover 75 2.5 Connoisseur Auto (1999) Dealer launch model. Join Date: Mar 2007
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Quote:
Quote:
Simon
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"Whatever is rightly done, however humble, is noble." Sir Henry Royce. Last edited by SD1too; 23rd August 2019 at 08:18.. |
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23rd August 2019, 08:43 | #18 | |
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75 CDT Tourer,2.5 Launch Saloon, Omipro MG/Rover (T4) Join Date: Jul 2007
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The default temperature with the sensor disconnected is -30C so the ac system thinks it doesn't require the fan as it tinks that at that temperature ac would not be required To be honest I've never bothered to leave it unplugged and leave the engine running for that long as it takes an awful long time on a diesel with it idling to get the cooling fan to kick in because they don't generate a lot of heat unlike the petrol models. In the time it would take to do that the car would be completely re-assembled and happily on it's way. I would expect though that the cooling fan would operate when it got up to the required temperature as it's controlled by the engine cooling temperature sensor. Russ
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23rd August 2019, 11:25 | #19 | |
I really should get out more.......
MG ZT-T 260 Join Date: Feb 2016
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Some of the scrap dealers that actually do reclaim the gas out of scrap cars are doing a great trade now the price of virgin gas is so high. In truth most A/C systems if they are working are in good order, the only way contaminants can get in there is of some work has been done on the system and a proper vacuum was not pulled before the gas was put in. Most of these systems have a filter. |
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23rd August 2019, 18:50 | #20 |
same car since 2005
2001 Rover 75 2.0 v6 Connoisseur Saloon Join Date: Nov 2006
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My local place explained to me that their charges are made up of a base rate of £34 for the process plus so much a gram for the "extra" refrigerant which has to be added to that which was recovered from your system . So , the old refrigerant is returned to your system but you are not charged for it .
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Who said it was simples ? |
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