VW Golf manuals

Volkswagen Golf Service & Repair Manual: Pressures and temperatures in the refrigerant circuit

  WARNING
When working on the refrigerant circuit, observe generally applicable safety rules and the Regulations for Pressure Tanks.
The pressures and temperatures in the refrigerant circuit depend on the momentary operating conditions (e.g. engine speed, speed 1, 2, or 3 of radiator fan, engine temperature, whether air conditioner compressor is on or off) as well as environmental influences (e.g. ambient temperature, humidity, required cooling output).
In vehicles with air conditioner compressor regulating valve -N280-, the pressure on the low-pressure side is varied by activating the valve.
Therefore, the values given in the following tables may only be considered as guidelines. They occur at an engine speed of 1,500 to 2,000 rpm and an ambient temperature of 20°C after about 20 minutes.
The locations of connections provided for pressure measurements can be found in the vehicle-specific coolant circuits.
→ Rep. gr.87
At 20°C and with the engine stopped, the refrigerant circuit will adjust itself to a pressure of 4.7 bar positive pressure → Chapter.
   
Evaporator output temperature sender -G263- or evaporator temperature sensor -G308
Function: The evaporator output temperature sender -G263- or evaporator temperature sensor -G308- reads the temperature downstream from the eva ...

Refrigerant circuit with expansion valve
A- low-pressure side of the refrigerant circuit. B- high-pressure side of the refrigerant circuit.         ...

Other materials:

Reinforced and Extra Load (XL) tyres
Some tyre manufacturers have for some time replaced the designation “Reinforced” with the designation “Extra Load”. This designation has long been standard in non-European countries. Technically, there is no difference between them. ...

Assembly overview - tail lights in rear lid, with LEDs
1 -  Bulb holder For left reversing light bulb -M16-/right reversing light bulb -M17-. Removing and installing → Chapter 2 -  Reversing light bulb Left reversing light bulb -M16- ...

Changing headlights over from driving on left to driving on right (gas discharge headlights)
If a right-hand drive vehicle is driven in a left-hand drive country, or vice versa, the headlights must be converted. This is necessary in order to avoid dazzling oncoming traffic with the asymmetric low beam headlights.   Note ...

© 2016-2019 Copyright www.vwgolf.org