A/C Pressure Switch – Audi A3 A4 A5 A6 A7 A8 Q3 Q5 Q7 TT (4H0959126B)

This high-quality TOPRAN air conditioning pressure switch (117228) is a direct replacement for Genuine Part Number Reference: 4H0959126B.

The A/C pressure switch monitors refrigerant pressure in the air conditioning system and shuts off the A/C compressor if pressure is too high or too low, protecting the compressor and other components from damage. A faulty switch commonly causes the air conditioning to cycle on and off erratically, blow warm air, or fail to engage at all.

This part is also known as an A/C pressure switch, air conditioning pressure sensor, refrigerant pressure switch, and AC clutch cycling switch.

Genuine Part Number Reference: 4H0959126B
Interchange / superseded numbers: 4H0959126, 4H0959126A, 4F0959126A, 4F0959126B, 4F0959126C, 5Q0959126A, 8K0959126, 8K0959126A, 8K0959126B
Supplier reference: TOPRAN 117228

Key Features:

• Direct replacement for OEM part number 4H0959126B
• Manufactured to meet or exceed OEM specifications
• Durable construction for reliable pressure detection
• Factory-style fit and plug-in connection
• Helps protect the A/C compressor from pressure-related damage

Compatible With:

• Audi A3 (8V) – 2012 to 2020
• Audi A4 (B8) – 2007 to 2016
• Audi A4 (B9) – 2015 onwards
• Audi A5 (B8) – 2007 to 2017
• Audi A6 (C6) – 2004 to 2011
• Audi A6 (C7) – 2011 to 2018
• Audi A7 (C7) – 2010 to 2018
• Audi A8 (D4) – 2010 to 2017
• Audi Q2 – 2016 onwards
• Audi Q3 – 2011 onwards
• Audi Q5 – 2008 onwards
• Audi Q7 – 2005 onwards
• Audi R8 – 2006 onwards
• Audi TT (8J, 8S) – 2006 onwards
• Audi RS3, RS5, RS6, RS7 and S/SQ variants across the above platforms

This part is also used across a range of related Volkswagen, SEAT and Skoda models sharing the same MQB and MLB platform components. Please confirm your specific model and year against your existing switch or OEM part number before ordering.

This is an aftermarket replacement part, not a genuine Audi component.