Accumulator, removing and installing: Installing

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Install in reverse order, paying attention to the following:

Check type of seal at connections and refrigerant lines (must be designed for same type of seal) → Connections of refrigerant lines to the components (different versions)

NOTE:

Connections at accumulator may be marked "IN" (from evaporator) and "Out" (to compressor).
The accumulator removed contains refrigerant oil, which must be returned to refrigerant circuit (together with new accumulator).
Adjustment of the oil quantity depends on the nature of the complaint. If, for example, a accumulator has been damaged in an accident (no loss of refrigerant, no ingress of moisture and dirt into refrigerant circuit), the air conditioner can be serviced by weighing the old and new accumulator without the need for extensive repair work. Pour refrigerant oil into the new accumulator until it weighs the same as the removed..
If an indeterminate amount of refrigerant oil has escaped or dirt and moisture have entered into the refrigerant circuit, it must be cleaned using compressed air and nitrogen.

Fig 1: Identifying Bolts, Accumulator & Bolt

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Insert in bracket - D -.
Engage bracket - D - with lug - B -.
Insert and tighten bolts - A - (tightening torque 8 Nm).

Fig 2: Removing/Installing Bolts And Refrigerant Lines

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Replace O-rings - D - ;
Turn the accumulator such that the two refrigerant lines - B - and - C - can be inserted without strain in the accumulator. In doing so, pay attention to correct assignment of connections.
Use bolt - A - to attach refrigerant line to accumulator (tightening torque 25 Nm). Use oil filter strap for example to secure accumulator to prevent it turning.
Tighten bolt - C - (tightening torque 8 Nm).

Reinstall remaining components removed.
Discharge and recharge refrigerant circuit. → Discharge refrigerant circuit