A/C Pressure Sensor 4H0959126B 4F0959126A Audi A4 A5 A6 Q5 VW Golf AKAS

The AKAS A/C Pressure Sensor 4H0959126B is a high-quality air conditioning pressure switch sensor designed as a direct replacement for Audi, Volkswagen, Skoda and Seat vehicles, replacing VW Group OE 4H0959126B (cross-reference 4H0959126, 4H0959126A, 4F0959126A, 4F0959126B, 4F0959126C, 5Q0959126, 5Q0959126A, 8K0959126, 8A0260749AK). This sensor monitors the air conditioning system refrigerant pressure, sending signals to the vehicle's ECU to regulate compressor operation and protect the A/C system from damage due to abnormal pressure - essential for reliable climate control in South Africa's warm climate. A faulty A/C pressure sensor can cause the air conditioning compressor to fail, resulting in no cold air - a common issue in South Africa's hot climate where A/C systems work harder. Built with premium materials including plastic, aluminum, copper and precision chip components, this sensor delivers accurate pressure readings and long-lasting performance. The 3-pin connector ensures a secure, reliable connection with the vehicle wiring harness, and the compact design allows for easy installation in the original mounting position without modification.

1. Monitors A/C Refrigerant Pressure & Regulates Compressor Operation This A/C pressure sensor continuously monitors the air conditioning system refrigerant pressure and sends accurate signals to the vehicle's ECU to regulate compressor engagement and disengagement - protecting the A/C system from damage due to abnormally high or low pressure, and ensuring reliable climate control in South Africa's warm climate; a faulty sensor can cause the compressor to fail or disengage, resulting in no cold air or intermittent cooling.

2. Wide Compatibility for Audi VW Skoda Seat Vehicles Compatible with a wide range of VW Group vehicles including Audi A3/S3 (2013-2015), A4/S4 B8 (2008-2015), A4 Allroad Quattro (2010-2015), A5/S5 (2008-2015), A6/S6 C7 (2009-2015), A6 Allroad Quattro (2007-2015), A7 (2011-2015), A8/S8 (2010-2015), Q5 (2009-2015), R8 (2007-2015), RS4 (2013-2015), RS5 (2010-2015), RS6 (2008-2011), Volkswagen Golf MK7 (2013-2015), Touareg (2011-2015), E-Golf (2014-2015), Skoda Octavia (2013-2015), and Seat Leon (2013-2015); also compatible with Porsche Cayenne/Macan/Panamera and other VW Group models using the same sensor specification.

3. OEM-Equivalent Quality with Premium Materials & Precision Chip Manufactured to OEM-equivalent specifications using high-quality materials including durable plastic housing, aluminum threaded body with internal rubber seal, copper electrical contacts, and precision chip components - delivering accurate pressure readings and long-lasting performance; the 3-pin electrical connector ensures a secure, reliable connection with the vehicle wiring harness, and the compact design (7 x 3.7 x 3.2 cm, approximately 25g) allows for easy installation in the original mounting position without modification.

4. Direct Fit Replacement & 3-Pin Connector Features a 3-pin electrical connector identical to the original VW Group unit - plug and play, no wiring modification or splicing required; direct fit replacement with identical mounting thread (standard VAG thread with internal rubber seal) and dimensions, simply locate the original sensor on the A/C refrigerant line (usually near the condenser or receiver drier), remove the old faulty sensor, and install the new unit - no special tools required, and no A/C system refrigerant discharge needed if accessed correctly.

5. Resolves Common A/C Failure Symptoms & Restores Cold Air If your Audi/VW/Skoda/Seat's air conditioning system exhibits any of the following symptoms - no cold air, intermittent cooling, compressor not engaging, A/C warning light on dashboard, fault codes related to A/C pressure sensor (such as P0532, P0533, 00920, or similar), or the compressor engages but then immediately disengages - the most likely cause is a faulty A/C pressure sensor, and this direct replacement sensor will resolve these issues and restore proper A/C system pressure monitoring and compressor operation, keeping your vehicle's cabin cool and comfortable in South Africa's hot climate.

Product Specifications

Product Type: A/C Pressure Sensor / Air Conditioning Pressure Switch / A/C Sensor

Other Names: A/C Pressure Switch, Refrigerant Pressure Sensor, Air Conditioning Pressure Transducer, A/C High Pressure Sensor, Climate Control Pressure Sensor

Main OE Number: 4H0959126B (VW Group)

Cross-Reference OE Numbers: 4H0959126, 4H0959126A, 4H0959126C, 4F0959126A, 4F0959126B, 4F0959126C, 5Q0959126, 5Q0959126A, 5Q0959126B, 8K0959126, 8K0959126A, 8K0959126B, 8A0260749AK, 1K0959126D, 1K0959126E, 9A7959126

Connector Type: 3-Pin (Male)

Thread: Standard VAG Thread with Internal Rubber Seal

Material: Plastic Housing, Aluminum Threaded Body, Copper Contacts, Precision Chip

Dimensions: 7 x 3.7 x 3.2 cm

Net Weight: approximately 25g

Installation: Direct Replacement, no modification required

Function: Monitors A/C refrigerant pressure, signals ECU to regulate compressor operation

Compatible Brands: Audi, Volkswagen (VW), Skoda, Seat, Porsche (Cayenne/Macan/Panamera)

Operating Temperature: -40 C to +125 C (automotive grade)

Voltage: 12V DC (vehicle electrical system)

Warranty: 6-month limited warranty

Compatible Models - Audi / Volkswagen / Skoda / Seat (2007-2015)

Audi:

- A3/S3 (8V) (2013-2015)

- A4/S4 B8 (8K) (2008-2015)

- A4 Allroad Quattro (8KH) (2010-2015)

- A5/S5 (8T/8F) (2008-2015)

- A6/S6 C7 (4G) (2009-2015)

- A6 Allroad Quattro (4GH) (2007-2015)

- A7 (4G8) (2011-2015)

- A8/S8 (4H) (2010-2015)

- Q5 (8R) (2009-2015)

- R8 (42/4S) (2007-2015)

- RS4 (8K) (2013-2015)

- RS5 (8T/8F) (2010-2015)

- RS6 (4F/C6) (2008-2011)

Volkswagen:

- Golf MK7 (5G) (2013-2015)

- Touareg (7P) (2011-2015)

- E-Golf (5G) (2014-2015)

Skoda:

- Octavia (5E) (2013-2015)

Seat:

- Leon (5F) (2013-2015)

Porsche (additional compatibility):

- Cayenne (92A/9YA) (2011-2018)

- Macan (95B) (2014-2018)

- Panamera (970/971) (2010-2018)

Note: This sensor is electrically, mechanically and functionally identical to 4H0959126A, 4F0959126A, 5Q0959126A and other cross-reference numbers - the variation in part numbers reflects internal VW Group coding practices across different model years and regional production lines, not design changes. Verify original OE number and connector type (3-pin) before purchase.

Engine Compatibility

Compatible with all petrol and diesel engines fitted in the listed Audi/VW/Skoda/Seat/Porsche models (2007-2015)

Includes: 1.2 TSI, 1.4 TSI, 1.8 TSI, 2.0 TSI, 2.5 TFSI, 3.0 TFSI, 4.0 TFSI, 4.2 FSI, 5.2 FSI, 1.6 TDI, 2.0 TDI, 3.0 TDI, 4.2 TDI, and other engine variants

Note: A/C pressure sensor compatibility is determined by vehicle model, year and OE number, not engine type - verify original OE number before purchase.

OE Cross-Reference

Primary OE: 4H0959126B (VW Group)

Cross-Reference: 4H0959126, 4H0959126A, 4H0959126C, 4F0959126A, 4F0959126B, 4F0959126C, 5Q0959126, 5Q0959126A, 5Q0959126B, 8K0959126, 8K0959126A, 8K0959126B, 8A0260749AK, 1K0959126D, 1K0959126E, 9A7959126

Note: 4H0959126B supersedes 4H0959126A, 4F0959126A/B/C, 8K0959126/A/B and other earlier part numbers - all are electrically, mechanically and functionally identical and interchangeable for the listed vehicles. The variation in part numbers reflects internal VW Group coding practices across different model years and regional production lines, not design changes. Verify original OE number, connector type (3-pin), and thread specification before purchase.

Vehicle Compatibility Verification: This A/C pressure sensor is compatible with the listed Audi, Volkswagen, Skoda, Seat and Porsche vehicles (2007-2015) using OE 4H0959126B or cross-reference numbers - verify your original OE part number (should be 4H0959126B or one of the cross-reference numbers listed), vehicle model, year, and connector type (3-pin) before purchase; if your OE number is not listed, please contact us with your VIN number for compatibility confirmation.

Professional Installation Recommended: While this is a direct replacement part, professional installation by a qualified automotive technician is recommended to ensure proper connection, system testing, and correct torque on the threaded fitting - the sensor is typically located on the A/C refrigerant line near the condenser or receiver drier; disconnect the vehicle battery before installation to avoid electrical shorts or fault codes; do not over-tighten the sensor as this may damage the thread or the sensor body.

A/C System Safety: The air conditioning system contains high-pressure refrigerant - do not attempt to open, discharge or service the refrigerant system without proper training and equipment; this sensor replacement does not require refrigerant discharge if accessed correctly (the sensor threads into a Schrader valve port on the refrigerant line that seals automatically when the sensor is removed); if you are unsure about the location or removal procedure, please consult a qualified automotive technician.

Electrical Connection: Ensure the ignition is OFF before installation; correctly connect the 3-pin connector securely until it clicks into place; verify the connector is free from corrosion or damage before installation; after installation, start the engine and test the air conditioning system - verify the compressor engages and the system produces cold air; check for any fault codes using a diagnostic scanner if the A/C warning light remains on.

Common Failure Symptoms: If your vehicle's A/C system exhibits any of the following symptoms - no cold air, intermittent cooling, compressor not engaging, compressor engages but immediately disengages, A/C warning light on dashboard, or fault codes related to A/C pressure sensor (such as P0532, P0533, 00920, or similar) - the most likely cause is a faulty A/C pressure sensor, and this direct replacement sensor will resolve these issues.

Handling & Storage: Handle the sensor with care - avoid dropping or subjecting it to impact as the precision internal chip may be damaged by rough handling; store in a cool, dry place before installation; do not expose the sensor to extreme temperatures, moisture, or corrosive chemicals before installation.

Warranty: 6-month limited warranty covers manufacturing defects only; physical damage from improper installation, dropping, water immersion, unauthorised modification, or use on incompatible vehicles voids the warranty; human damage and force majeure factors are not covered by our warranty; to make a warranty claim, please retain your original purchase receipt and contact us with photos of the defective part and a description of the failure.

This is an aftermarket replacement part. The Audi, Volkswagen, Skoda, Seat and Porsche brand names, model names, and OE part number 4H0959126B are used for identification and compatibility purposes only and do not imply endorsement by, affiliation with, or manufacture by Audi AG, Volkswagen AG, Skoda Auto, SEAT, S.A. or Porsche AG.

What's in the box
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