Volkswagen Golf Service & Repair Manual: Air conditioning system pressure switch -F129

Volkswagen Golf Service & Repair Manual / Air conditioning system with refrigerant R134a / General information on refrigerant circuit / Switch and sender in refrigerant circuit and related connections / 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).

2. Switches the air conditioning system off in the event of excess pressure (approx. 32 bar) (e.g. because of lack of engine cooling).

3. Switches the air conditioning system off in the event of insufficient pressure (approx. 2 bar) (e.g. because of loss of refrigerant).

Note

The air conditioning system pressure switch -F129- replaces the high-pressure switch for air conditioning system -F23-, the low-pressure switch for air conditioning system -F73- and the high-pressure switch for magnetic clutch -F118-.

Air conditioning system pressure switch -F129

Connections to valves for switches in the refrigerant circuit

WARNING Danger of freezing injuries. If refrigerant circuit has not been evacuated, refri ...

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-pressur ...

Other materials:

Assembly overview - manually operated anti-dazzle interior mirror, without rain and light sensor -G397- and front camera for driver assist systems -R242-
1 - Retaining plate Retaining plate for mirror base Glued to windscreen Removing and installing → Chapter 2 - Interior mirror Manually operated Removing and installing → Chapter ...

Removing and installing brake servo, right-hand drive vehicle
Special tools and workshop equipment required Torque wrench -V.A.G 1331- Torque wrench -V.A.G 1410- ...

Absorbent glass mat battery
Maintenance-free battery with a contained electrolyte and no colour indicator Lead-acid battery where the electrolyte is contained within a microscopic glass mat (AGM). The battery is sealed and fitted with valves. ...