Volkswagen Golf Service & Repair Manual: Restrictor

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / General information on refrigerant circuit / Refrigerant circuit components / Restrictor

The restrictor creates a restriction. This restriction limits the flow, separating the high-pressure and low-pressure sides in the refrigerant circuit. Upstream of the restrictor, the refrigerant is warm due to the high pressure. Downstream of the restrictor, the refrigerant is cold due to the low pressure. Upstream of the narrow point is a strainer to catch dirt and downstream of the narrow point is a strainer to atomise the refrigerant before it enters the evaporator.

Note

Arrow -A- on the restrictor points to the evaporator.

Renew it every time the refrigerant circuit is opened.

Observe different versions.

→ Rep. gr.87

→ Parts catalogue

Restrictor

Reservoir

The reservoir collects the vaporised and gaseous mixture coming from the evaporator to ensure the air conditioner compressor receives only gaseous refrigerant. Gaseou ...

Receiver

The receiver collects the liquid droplets and directs them in a continuous stream to the expansion valve. Moisture which has entered the refrigerant circuit during as ...

Other materials:

Checklist
Transporting children in the vehicle : Comply with any country-specific legal regulations. Volkswagen recommends that children under 12 years of age are always transported on the rear seats. Children should only be transported on the front passenger seat in exceptional ci ...

Trade names and designations
Refrigerant R134a is currently available under the following trade designations: H-FKW 134a SUVA 134a KLEA 134a Note Other trade designations ...

Renewing Lambda probe
Note Do not repair Lambda probe wires, since this can result in malfunctions. If necessary, replace attachment parts, cable ties or marking rings to match the uniform probe to the defective probe as specified. ...