Change Over Valve, Vacuum System. Porsche 958 Cayenne / 95B Macan / 970.2 Panamera 2010-18  ❭  7PP906046

Change Over Valve, Vacuum System.
The Genuine Porsche Change Over Valve, Vacuum System is an original equipment vacuum control valve designed to regulate vacuum flow within the engine management and emissions systems of compatible Porsche models. Manufactured to Porsche's exact specifications for fit, performance and durability, this electrically operated valve precisely controls the distribution of engine vacuum to various actuators and control devices, ensuring optimum engine efficiency, emissions performance and reliable operation of vacuum-controlled systems.  

Fits:

• Porsche 958 Cayenne V6 3.6L Petrol (300Hp) 2010-17
• Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
• Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
• Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
• Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
• Porsche 95B.1 Macan S Petrol 3.0L V6 (340Bhp) 2014-18
• Porsche 95B.1 Macan GTS Petrol 3.0L V6 (360Bhp) 2014-18
• Porsche 95B.1 Macan Turbo 3.6L V6 (400Bhp) 2014-18  

Diagram Ref No 6

Manufactured from high-quality automotive-grade composite materials with a precision-engineered internal solenoid, durable vacuum ports and corrosion-resistant electrical connections, the valve is engineered to withstand continuous exposure to engine bay temperatures, vibration, moisture and oil vapours. Designed as a direct replacement for the original component, it integrates seamlessly with the vehicle's vacuum hoses, wiring harness and engine control unit (ECU), delivering factory-correct performance and long-term reliability.  

What This Product Does:

• Regulates the flow of vacuum within the engine management system.
• Controls vacuum-operated actuators and engine components.
• Responds to commands from the engine control unit (ECU).
• Supports efficient operation of the intake and emissions control systems.
• Helps optimise engine performance and fuel efficiency.
• Maintains accurate vacuum distribution throughout the system.
• Restores factory vacuum control functionality.
• Forms an essential part of the engine vacuum and emissions system.

Symptoms Of Wear Or Failure:

• Illuminated engine management or check engine warning light.
• Engine management fault codes relating to the vacuum or emissions system.
• Rough or unstable idle.
• Hesitation during acceleration.
• Reduced engine performance.
• Increased fuel consumption.
• Vacuum leaks or hissing noises from the engine bay.
• Poor operation of vacuum-controlled engine components.
• Increased exhaust emissions.
• Failed emissions or MOT inspection.

Why Replacement Matters:

• The vacuum change over valve operates continuously under the control of the engine management system, directing vacuum to critical engine and emissions components according to driving conditions. Over time, the internal solenoid, valve mechanism or seals can wear or become contaminated, reducing the valve's ability to regulate vacuum accurately.
• A faulty valve can cause incorrect vacuum distribution, leading to poor engine performance, rough running, increased fuel consumption and higher exhaust emissions. It may also affect the operation of vacuum-controlled systems such as intake manifold actuators, turbocharger control systems or emissions equipment, depending on the vehicle specification.
• Replacing a worn or faulty valve with a Genuine Porsche component restores precise vacuum control and ensures the engine management system operates exactly as intended. Manufactured to Porsche's exact engineering standards, the Genuine Porsche Change Over Valve, Vacuum System provides factory-correct fitment, exceptional reliability and long-lasting performance, helping maintain the efficiency, reliability and driving characteristics expected from your Porsche.

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