Get Renewingcomponents -> 11.3 Renewing receiver or reservoir, and restrictor Guide for Volkswagen LT Van Second Generation (1996-2006)

Amarok 2011 ➤ , Beetle 2012 ➤ , Bora 1999 ➤ , CC 2010 ➤ , CC 2012 ➤ , ...

Air conditioning system with refrigerant R134a - Edition 10.2014

11.2.2

Leaks or internal damage (e.g. noises or

lack of power)

– Drain refrigerant circuit.

– Remove air conditioner compressor.

Note

♦ In the event of internal damage (to air conditioner compres‐

sor), purge with R134a refrigerant ⇒ page 67 .

♦ If a different air conditioner compressor with other refrigerant

oil is fitted, purge the refrigerant circuit with R134a refrigerant

⇒ page 67 .

– Renew receiver / dryer cartridge and expansion valve or res‐

ervoir and restrictor. Only if there was no more refrigerant in

the circuit.

– If leaking, examine the expansion valve for dirt or corrosion;

renew if necessary.

– Assemble refrigerant circuit, evacuate and charge.

11.3

Renewing receiver or reservoir, and re‐

strictor

11.3.1

After purging refrigerant circuit of con‐

taminants, e.g. due to moisture intrusion

(because refrigerant circuit has stood

open for a length of time) or due to dirt

The reservoir or receiver or cartridge of the dryer bag need not

be renewed under the following circumstances:

•

After an accident in which there was no damage to the reser‐

voir or receiver.

Repairs are performed quickly (no more delay than during a

normal repair time) and there was no moisture intrusion. The

vehicle is no more than 5 years old.

The reservoir or receiver or dryer cartridge should be renewed

under the following circumstances:

•

The refrigerant circuit was opened and the vehicle is more than

5 years old.

The refrigerant circuit has been opened for in indeterminate

period (seepage leak).

Repairs take longer than a normal repair time and there has

been moisture intrusion.

Always renew collector/reservoir or dryer cartridge after blow‐

ing through with compressed air or purging with refrigerant

R134a. Keep genuine parts sealed for as long as possible to

keep the ingress of moisture as low as possible.

•

The air conditioner compressor seizes.

The reservoir or receiver is damaged (e.g. in an accident).

– Drain refrigerant circuit.

– Remove air conditioner compressor.

11. Renewing components

163

Amarok 2011 ➤ , Beetle 2012 ➤ , Bora 19_l9_k9 ➤ , CC 2010 ➤ , CC 2012 ➤ , ...

Air conditioning system with refrigerant R134a - Edition 10.2014

– Rectify cause of fault.

– Examine the expansion valve for dirt or corrosion; renew if

necessary.

– Remove oil drain screw from air conditioner compressor.

– To speed up the draining of the refrigerant oil, rotate the shaft

of the air conditioner compressor using the magnetic clutch

poly V-belt pulley.

– Pour old refrigerant oil out of air conditioner compressor. Han‐

dling refrigerant ⇒ Volkswagen ServiceNet; Service hand‐

book; Environmental protection; Waste disposal; Current

situation; Disposal channels; Disposal of used oils; Refrigerant

oils .

– Then fill the air conditioner compressor with a quantity of new

refrigerant oil equal to the quantity in a genuine air conditioner

compressor ⇒ Rep. gr. 87 .

Note

♦ Types and quantities of refrigerant oils which should be used

for different air conditioner compressors ⇒ Rep. gr. 87 .

♦ To ensure proper lubrication of the air conditioner compressor

when it runs for the first time, the air conditioner compressor

must be filled with at least 80 cm of refrigerant oil; the re‐

mainder can be poured into the new reservoir or receiver ⇒

Rep. gr. 87 .

♦ If dirt enters the air conditioner compressor whilst the refrig‐

erant circuit is open (e.g. after an accident), the air conditioner

compressor should be renewed.

– Renew receiver or reservoir and restrictor.

– Assemble refrigerant circuit, evacuate and charge.

11.3.2

Without needing to purge refrigerant cir‐

cuit of contaminants (e.g. damage in an

accident); no refrigerant has escaped

and no moisture or dirt has entered re‐

frigerant circuit

– Drain refrigerant circuit.

– Renew restrictor. Depending on vehicle

– Remove receiver or reservoir.

– Clean any dirt out of receiver or reservoir.

– Weigh receiver or reservoir that was removed.

Note

♦ Fill enough refrigerant oil into the new reservoir or collector so

that it has the same weight as the container which was re‐

moved.

♦ Install new receiver or reservoir.

– Assemble refrigerant circuit, evacuate and charge.

164

Rep. gr.00 - Technical data

Renewingcomponents -> 11.3 Renewing receiver or reservoir, and restrictor for Your Volkswagen LT Van Second Generation (1996-2006)

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