VW Golf manuals

Volkswagen Golf Service & Repair Manual: High-pressure sender -G65

This high-pressure sender -G65- is fitted in place of the air conditioning system pressure switch -F129-.
When voltage is applied to the high-pressure sender, it generates a square wave signal, or data telegram. This signal changes when the pressure in the system changes.
Using this signal, the control units that are connected in-line (radiator fan control unit, engine control unit, operating and display unit for Climatronic air conditioning system -E87- or Climatronic control unit -J255- etc.) calculate the pressure in the refrigerant circuit and actuate the radiator fan, the engine, the air conditioning system magnetic coupling -N25- accordingly and/or alter actuation from the air conditioning system compressor regulating valve -N280-.
 

High-pressure sender -G65

Air conditioning system pressure switch -F129
This pressure switch has 3 functions: 1. Switches radiator fan to next higher speed when pressure increases in refrigerant circuit (approx. 16 bar). ...

Refrigerant pressure and temperature sender -G395
  WARNING Danger of freezing injuries. If refrigerant circuit has not been evacuated, refri ...

Other materials:

Safety precautions when working on the cooling system
Risk of scalding by hot coolant When the engine is warm, the cooling system is under pressure. Danger of scalding due to steam and hot coolant. –  Always wear safety gloves. –  Always wear safety goggles. –  ...

Test preparations, wheel alignment with no driver assist systems
Special tools and workshop equipment required Wheel alignment computer -V.A.G 1813F- or VW/Audi-approved wheel alignment units Brake pedal depressor -V.A.G 1869/2- Tool insert 18 mm -T10179- Shock absorber set ...

Checking condensation drainage
Checking –  Remove right centre console trim in footwell → General body repairs, interior; Rep. gr.68. –  Carefully fold back floor covering in area of condensation drain hose so ...

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