Thread: D3 Air con trouble

Here is the control valve,it does have wires but they were broken during removal.Had to result to blowing the valve out with nitrogen apparently.Its not a TX valve.Handy to know its common to other aircon systems,just got to find a decent auto fridgy who knows his stuff.Well we have one in WA it seems

Andrew

BUMP for G5k.
Andrew

I'm have the same / similar problem since Christmas, air con was taking 3 - 4 minutes to start blowing cold air, ( is basically blowing warm air on start up during the day ) and once working normally is no where near as cold as it used to be. Where as before you nearly needed a jumper on when it was cranked on low, now it feels like I'm living in Darwin during summer!

had it checked out during it's last service and they couldn't fault it ( gas correct ) now have it booked in in two weeks for further testing.

it seems a few are having similar symptoms-it looks like the extended warranty is going to pay for itself after all, ( 2013 D4 )

do we know what they call this potential valve / switch ?

thanks
Jack

Same issue it seems.
If you have a warranty go the whole hogg with the compressor like the dealer wants too.
My bro had normal values on his pressures too.
At best warranty gives you a new compressor at worse you head down to East Perth.Give them a call,they will tell you what it is.Its not a TX valve,that is on a normal system,this is to do with Climate Control systems.
The tip is don't keep using it like it is,it will destroy the compressor my Bro was told.
GOOD LUCK
Andrew

Andrew bumped the thread for me as having similar issues. My mechanic assessed it as compressor replacement. He said the compressor is effectively choosing to stay in neutral at times instead of kicking in. To us it has seemed to work okay most times at moderate outside temps and then when it's hotter outside less likely to provide any cooling at all. But since having the car has never been icy cold just assumed being a British car they don't really need much in the way of cooling so that was how it was. Thanks for the assistance Andy will run this past our mechanic.

The valve is called the Displacement Control Valve and is controlled externally on the D4 by an ECU. It is what controls the displacement of the variable displacement compressor.

Its good to know that it can be replaced so cheaply, given that the compressor is so difficult to access and the valve is part of the compressor. However, my research indicated that these valves usually fail because of a failing compressor and will often fail again in a fairly short time. Hopefully, in the case of Andy's brother, they are correct that the compressor is OK and doesn't need replacing. As I said earlier in the thread, I replaced my whole compressor since it was getting up in kms, with around 220,000km on it. The air con people said there was nothing wrong with it but when the car wouldn't cool for several minutes on a hot day and once it got going the cooling capacity was much less than normal, it is obvious that there is a problem.

When working correctly, the D4 air con starts straight away and cools the car incredibly well on the hottest days. The days where English air cons were useless are long gone, at least in the case of Land Rover.

Bob.
My Bros D4 has very similar Ks to yours,he tells me the aircon is now the best he has had in a vehicle.Perhaps he has bought time,who knows.
Yes,the D4 has a bloody good aircon,you look at the player comfort meter on the dash and say it cant be that hot out there,then you touch the window,or worse have to get out.OH yes it is that hot out there!!!!
Andrew

I put my little Engel fridge thermometer in the dash air con vent today, basically the best it would get was less 15c than the dashes out side temperature during the day, ( it was about 32c in Perth today )
The coldest it got during the drive home from work was 8c after nearly 45 minutes of driving and outside was about 27c. ( it was hovering 12 to 15c most of the time )

What should it get down to normally ? I'm guessing how it feels in the car about 3c would be normally
working D4 air con system ? I have a HSE, do they have anything extra to power up the rear air unit or just more plumbing?

Do they normally stock the air con compressor at Southerns ?

Jack