Tedg Posted January 1, 2008 Share Posted January 1, 2008 Hi Hope some one has come across this problem before , have just purchased a 04 Freelander Td4 S auto and have discovered that the air con is running all of the time , the switch on the centre consal seems to operate as it should . Unfortunatly the haynes manual does not give the wirring diagram for the air con control circuit . Any help would be much appreciated , also could some one advise what the expected M.P.G. for a auto should be aprox . Quote Link to comment Share on other sites More sharing options...
jules Posted January 2, 2008 Share Posted January 2, 2008 How do you mean it is on a electronic clutch which isn't working. the compressor is spinning all the time. the compressor is fitted to all modes weather it has Air con or not if that makes sense Quote Link to comment Share on other sites More sharing options...
JCB Posted January 2, 2008 Share Posted January 2, 2008 RE MPG -We have an 02 td4 auto - I reckon we get no more than 25mpg (but live in a hilly area with lots of short runs). - the most I have seen is 28mpg on a long run. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted January 2, 2008 Share Posted January 2, 2008 No experience of this specific one but most aircon compressor clutches (the fangled contrivance the pulley mounts to on the front of the compressor) have a single +12v feed to engage them. When they're not engaged the pulley will freewheel and the centre (connected to the compressor internals) will stay still. Quote Link to comment Share on other sites More sharing options...
Tedg Posted January 3, 2008 Author Share Posted January 3, 2008 RE MPG -We have an 02 td4 auto - I reckon we get no more than 25mpg (but live in a hilly area with lots of short runs). - the most I have seen is 28mpg on a long run. Many thanks for the info I am doing OK as I am geting aprox 26 on short runs and 36 + on a run . Quote Link to comment Share on other sites More sharing options...
Marc1187 Posted January 4, 2008 Share Posted January 4, 2008 As fridgefreezer says, i'd check the power supply to it when it should be turned off. There should be only one wire to the air con compressor which will give a 12v feed when the systen is on and nothing when it is off, obviously. If there is no feed there and the compressor is till spining then the clutch must be stuck on in the compressor. Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted January 5, 2008 Share Posted January 5, 2008 If the clutch is stuck on I'd try some WD40 and a tap with an aircooled flatness adjuster as a first port of call. Quote Link to comment Share on other sites More sharing options...
Roverdrive Posted January 5, 2008 Share Posted January 5, 2008 We were getting about 26mpg round town, and 29 mpg on a run out of a 55 plate se auto TD4. However I think there was an issue of the fuel burning heater being on for too much of the time, that was never fully resolved. I would certainly have expected more than 29mpg on a the motorway at a constant ( ish) 70 mph over 250 miles. Present D3 does better, even round town. Quote Link to comment Share on other sites More sharing options...
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