A/C Weak on Your VW or Audi? Replace the YST-43 Compressor Valve for $54.
The YST-43 A/C compressor control solenoid fits Volkswagen Polo, Polo Sedan, Golf, Jetta, Passat, Tiguan, Touran, Caddy, Audi A1, A3, Skoda Fabia, Rapid, Octavia, and SEAT Ibiza/Leon. A failed solenoid causes weak or no A/C cooling and erratic compressor cycling.
✓ What You Get: YST-43 A/C compressor control solenoid for VW, Audi, Skoda, and SEAT — restores full A/C cooling performance.
What's Included
- 1× YST-43 A/C compressor control solenoid
- O-ring seal(s)
Why Replace?
- Restores Cooling: Worn solenoid reduces compressor displacement and refrigerant flow.
- Stops Erratic Cycling: Failed valve causes rapid A/C on/off cycling.
- Saves $200+ vs Compressor: New compressor $250+; YST-43 solenoid costs $54.
- 30-Minute Job: Access compressor front, swap solenoid, reseal.
Vehicle Compatibility
| Make | Models | Valve |
|---|---|---|
| Volkswagen | Polo, Golf, Jetta, Passat, Tiguan, Touran, Caddy | YST-43 |
| Audi | A1, A3 | YST-43 |
| Skoda / SEAT | Fabia, Rapid, Octavia / Ibiza, Leon | YST-43 |
About This Control Valve
YST-43 A/C compressor control solenoid valve fits variable-displacement compressors used across the VAG group (VW, Audi, Skoda, SEAT). The solenoid regulates compressor swash plate angle and refrigerant displacement based on cooling demand — solenoid failure causes reduced or no A/C output and is the most common A/C repair on these platforms before compressor replacement is needed.
⚠ Verify Before Ordering: Confirm your A/C compressor uses a YST-43 type solenoid before purchasing.
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Orders ship within 1–2 business days.
Standard delivery:
- USA: Some items ship from our US warehouse and arrive within 3 business days.
- USA-EU: 10–21 business days
- Worldwide: 14–30 business days
Shipping cost is shown at checkout.
Can I exchange or return an item?
Yes, you can exchange or return an item within 14 days of purchase. This right is guaranteed to you by the Law on the Protection of Consumer Rights
To use this feature, please make sure that:
- the product was not in use and has no traces of use: scratches, chips, abrasions, etc.
- the goods are fully completed and the integrity of the packaging is not violated
- retained all labels and factory markings