V70 aircon pump life?

I have a V70 Classic, 150,000 on the clock, with aircon, and which despite
re-gassing still only works (although very well) for about a few minutes
then goes off for about 30 mins (suggests something cooling down / warming
up ?)

Someone has said that a "fixed orifice filter" needs to be checked, and is
likely to be full of metal shavings / swarf as the compressor pump has come
to the end and these bits are from its internals. This means a new
compressor apparently.

Can anyone confirm this and what are the options if this is so ? i.e.
re-conned unit, pattern unit, salvaged unit from a vehicle a bit younger
(75,000 miles ?)

Thanks

Nick

 

Firstly btpass the superheat cutout switch on the back of the compressor-
very common ailment on the V70.

If this doesnt sort it, then you;ll be needing to check the HP sensor, which
needs the use of a FCR on the 70 series i'm afriad.

Manual a/c or climate?? Any flashing recirc lights?

Tim..

 

Hi Tim,
Its a manual a/c - not seen any flashing recirc lights or any lights
flashing.
Where would I find the HP sensor and what is an FCR?
Sorry for more questions - much appreciate your help
Nick

 

FCR= fault code reader / scan tool. The ECU reads actual pressure of the a/c
system and regualtes the condensor fan and compressor clutch accordingly.
This is the proper method of charging the a/c too, though you can do it 90%
accurate via weight.

The superheat or overheat cutout switch is on the back of the compressor and
has two wires. The connectors are such that you can disconnect both ends of
the switch, then hook the feed from the car direct to the compressor clutch,
thus by passing the switch. This is your first port of call.

Tim..