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RR SPORT 2012 L320

Air Con Leak has now been diagnosed from being inside the car.

Looking for advice on getting access to the Thermal Expansion Valve & Evaporator. The system has been charged twice with UV dye, so am hoping to get access to shine the torch on this area.

im worried it’s going to be a dash out job.

Any Information will be much appreciated.
 

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there are posts on heater core replacement on the forum. There are some videos on youtube as well on HC replacement. That will probably get you close to the evaporator. A fair amount of stuff has to come out to get there.
 

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Junior,
Thank’s for your reply.
I want to gain access to the external of the HVAC unit only.
I was hoping there would be away of inspecting the Expansion Valve to Evaporator Joints with the HVAC unit in place.
Hopefully it will be 1 of the 4 O Rings that has failed not the Evaporator, so could possibly be done without removing unit.
Thank’s Again
Neil
 

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Looking at my CD repair manual it looks like the o rings are accessible from under the hood.

22. Release 2 A/C lines from the body.
Remove the nut.
23. CAUTION: Immediately cap all refrigerant lines to prevent
ingress of dirt and moisture.
Release 2 A/C lines from the bulkhead.
Remove the bolt.
Remove and discard the O-ring seals.

For the evaporator removal it pretty well says that virtually everything including the driver's seat and steering column have to come out.

For the expansion valve this is what it says.---

Removal
1. Evacuate the A/C system.
For additional information, refer to: Air Conditioning (A/C) System
Recovery, Evacuation and Charging (412-00 Climate Control
System - General Information, General Procedures).
2. Remove the instrument panel upper section.
For additional information, refer to: Instrument Panel Upper
Section (501-12 Instrument Panel and Console, Removal and
Installation).
3. CAUTION: Immediately cap all refrigerant lines to prevent
ingress of dirt and moisture.
Remove the thermostatic expansion valve.
Remove the cover.
Remove the 2 Allen bolts.
Remove and discard the 4 O-ring seals.
Installation
1. Install the thermostatic expansion valve.
Clean the components.
Install the new O-ring seals.
Tighten the Allen bolts to 5 Nm (4 lb.ft).
Install the cover
 
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