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- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 968 3.0L 1992-94
- Porsche 968 Sport 3.0L 1994-95
- Porsche 968 CS 3.0L 1993-95
- Porsche 968 Turbo S 3.0L 1993-94
The Genuine Porsche Air Conditioning Pressure Switch (Part Number: 96461313700) is an original equipment electrical component designed to monitor refrigerant pressure within the air conditioning system of selected Porsche 911 (964), 944 and 968 models.
Fits:
- Porsche 964 (911) C2 1989-92
- Porsche 964 (911) C4 1989-92
- Porsche 964 (911) RS 3.6L 1991-92
- Porsche 964 (911) RS 3.8L 1991-92
- Porsche 964 (911) TURBO 3.3L 1991-92
- Porsche 964 (911) TURBO 3.6L 1991-92
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 968 3.0L 1992-92
- Porsche 968 Sport 3.0L 1994-92
- Porsche 968 CS 3.0L 1993-92
- Porsche 968 Turbo S 3.0L 1993-92
Diagram Ref No 15
Manufactured to Porsche's original equipment specifications, this pressure switch plays an important role in protecting the air conditioning compressor and maintaining reliable climate control operation.
Installed within the refrigerant circuit, the switch monitors system pressure and provides an electrical switching signal when specified pressure conditions are reached. This allows the air conditioning control system to prevent compressor operation when refrigerant pressure is outside the permitted operating range.
Correct refrigerant pressure is essential for efficient air conditioning performance. Insufficient refrigerant pressure may indicate a leak or inadequate system charge, while excessive pressure can place unnecessary stress on the compressor, refrigerant lines and other air conditioning components.
Over time, the original pressure switch may deteriorate due to ageing, vibration, moisture exposure, electrical contact wear or internal mechanical failure. A faulty switch can prevent the compressor from operating correctly, resulting in intermittent cooling or complete air conditioning failure.
Replacing a defective switch with a Genuine Porsche component helps restore the intended pressure monitoring and compressor protection functions while maintaining the vehicle's original climate control system.
Ideal for air conditioning repairs, refrigerant circuit servicing and classic Porsche restoration projects, this Genuine Porsche pressure switch provides a replacement for compatible vehicles.
What This Product Does:
The air conditioning pressure switch is an important safety and control component within the vehicle's refrigerant circuit.
Its primary function is to respond to refrigerant pressure and provide an electrical signal that allows or prevents air conditioning compressor operation according to the system's operating requirements.
During normal operation, the compressor circulates refrigerant through the condenser, expansion device and evaporator to remove heat from the passenger compartment.
The pressure switch helps protect the system by preventing compressor operation when the monitored pressure falls outside its specified range.
Its main functions include:
- Monitoring refrigerant pressure: Detects specified pressure conditions within the air conditioning circuit.
- Protecting the compressor: Helps prevent compressor operation when refrigerant pressure is unsuitable.
- Supporting reliable cabin cooling: Allows compressor operation when the required pressure conditions are satisfied.
- Reducing the risk of compressor damage: Helps protect against operation under excessively low refrigerant pressure conditions.
- Supporting refrigerant system safety: Provides pressure-dependent electrical control within the air conditioning system.
- Maintaining climate control functionality: Works with the vehicle's air conditioning electrical circuit to support dependable operation.
- Responding to abnormal pressure conditions: Helps prevent continued compressor operation when pressure-related safety limits are reached.
- Preserving original Porsche specifications: Maintains the intended pressure-switching arrangement of the original air conditioning system.
Symptoms Of Wear Or Failure:
Air conditioning pressure switches are exposed to refrigerant pressure changes, engine compartment temperatures, vibration and environmental conditions.
Over time, the switch's internal contacts, pressure-sensitive mechanism or electrical connections may deteriorate, causing incorrect or intermittent switching.
Common symptoms of a worn or faulty air conditioning pressure switch include:
- Air conditioning not working: A defective switch may prevent the compressor from engaging, resulting in no cold air from the vents.
- Intermittent cabin cooling: Faulty electrical contacts may cause compressor operation to become inconsistent.
- Warm air from the vents: A pressure switch that incorrectly interrupts compressor operation may prevent effective cooling.
- Compressor not engaging: The compressor clutch may fail to activate even when the system contains the correct refrigerant charge.
- Unpredictable compressor cycling: Intermittent switching faults may cause the compressor to engage and disengage unexpectedly.
- Reduced cooling performance: Incorrect pressure-switch operation may interrupt the refrigeration cycle.
- Damaged electrical connections: Corroded terminals, loose connectors or damaged wiring may interfere with the switch signal.
- Refrigerant leakage around the switch: Deteriorated seals or damage around the pressure switch connection may allow refrigerant to escape.
- Visible corrosion or deterioration: Moisture and ageing may damage the switch housing or connector terminals.
- Incorrect pressure-switch continuity: Electrical testing may show that the switch does not open or close as specified at the relevant pressure conditions.
- Repeated air conditioning shutdown: A faulty pressure switch may interrupt compressor operation despite otherwise normal system conditions.
Why Replacement Matters:
Replacing a defective air conditioning pressure switch is important for restoring dependable cabin cooling and protecting the compressor against unsuitable operating conditions.
A malfunctioning pressure switch may incorrectly prevent the compressor from engaging, leaving the vehicle without effective air conditioning even when other system components are functioning correctly.
Alternatively, a switch that fails to respond to abnormal pressure conditions may compromise the compressor protection function intended by the original system design.
Installing a Genuine Porsche replacement Air Conditioning Pressure Switch helps to:
- Restore compressor control: Reinstate pressure-dependent switching for correct air conditioning operation.
- Improve cabin cooling reliability: Help eliminate intermittent cooling caused by defective switch contacts.
- Protect the air conditioning compressor: Maintain the intended safeguards against unsuitable refrigerant pressure.
- Support system safety: Restore the electrical response to abnormal refrigerant pressure conditions.
- Reduce unnecessary compressor wear: Help prevent operation when refrigerant conditions are outside the specified range.
- Resolve pressure-switch-related faults: Address air conditioning problems caused by a confirmed defective switch.
- Maintain reliable climate control: Support consistent air conditioning performance during everyday driving.
- Preserve original functionality: Restore the intended factory refrigerant pressure monitoring arrangement.
- Support classic Porsche maintenance: Replace ageing electrical components during air conditioning refurbishment.
- Maintain Genuine Porsche quality: Use a replacement component specified for the applicable Porsche refrigerant system.
Replacing the pressure switch is particularly recommended when diagnostic testing confirms incorrect switching behaviour, damaged electrical connections or leakage originating from the switch assembly.
For older Porsche vehicles, inspecting the complete air conditioning circuit during repairs is advisable to identify refrigerant leaks, deteriorated hoses, damaged connectors and other ageing components.
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96461313700
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